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Tytuł:
The Method of Inoculation of High-Quality Grey Cast Iron Intended for Massive Castings for Bottom and Distance Plates as Well Counterweights Manufactured as Vertical Castings
Autorzy:
Guzik, Edward
Kopyciński, Dariusz
Ziółko, A.
Szczęsny, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2203754.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
high-quality cast iron
heavy castings
massive casting
graphitizing inoculation
hybrid inoculation
Opis:
The technology of producing castings of high-quality inoculated cast iron with flake graphite particles in the structure is a combination of the melting and inoculation process. Maintaining the stability of the strength and microstructure parameters of this cast iron is the goal of a series of studies on the control of graphitization and austenitic inoculation (increasing the number of primary austenite dendrites), and which affects the type of metal matrix in the structure. The ability to graphitize the molten alloy decreases with its holding in the melting furnace more than an hour. The tendency to crystallize large dendritic austenite grains and segregation of elements such as Si, Ni and Cu reduce the ductility properties of this cast iron. The austenite inoculation process may introduce a larger number of primary austenite grains into the structure, affecting the even distribution of graphite and metal matrix precipitation in the structure. Known inoculation effects the interaction (in low mass) of additives: Sr, Ca, Ba, Ce, La, produces MC2 carbide). Addition of Fe in the inoculant influences the number and shape of austenite dendrites. Hybrid modification combines the effects of these two factors. The introduction of nucleation sites for the graphite eutectics and primary austenite grains result in the stabilization of the cast iron microstructure and an increase in mechanical properties. The obtained test results set the direction for further research in this area in relation to the production of heavy plate castings in vertical and horizontal pouring.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 1; 359--368
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Results of inoculation of beech (Fagus sylvatica L.) and oak (Quercus sp.) stumps with Pleurotus ostreatus (Jacq.: Fr.) Kumm.
Wyniki szczepienia pniaków bukowych (Fagus sylvatica L.) i dębowych (Quercus sp.) grzybnią boczniaka ostrygowatego (Pleurotus ostreatus [Jacq.: Fr.] Kumm.)
Autorzy:
Szczepkowski, A.
Pietka, J.
Powiązania:
https://bibliotekanauki.pl/articles/38624.pdf
Data publikacji:
2008
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
inoculation
artificial inoculation
beech
Fagus sylvatica
oak
Quercus
stump
Pleurotus ostreatus
Opis:
The article presents the results of inoculation of beech and oak stumps with a biological preparation of oyster fungus (Pleurotus ostreatus) mycelium. The inoculum was grown on a sawdust substrate at Warsaw University of Life Sciences Department of Mycology and Forest Phytopathology. The experiment was set up at the Forest Experimental Station in Rogów. Stumps were inoculated: i) immediately after tree felling or ii) at approximately 5 and 12 months after felling. A total of 60 beech stumps and 50 oak stumps were inoculated in the years 2002– 2004. The infected stumps were then inspected for the presence of the mycelium and fruiting bodies of P. ostreatus. The presence of fruiting bodies of other wood-decaying fungi was also noted. The extent of rotting was determined macroscopically, with the causal agent being confirmed on the basis of isolation and identification of mycelium from fragments of colonized wood obtained from rooted-out stumps. Oyster fungus mycelium was found to colonise beech stumps much more effectively than oak stumps. Stumps inoculated immediately after, or five months after felling were more effectively colonized by the mycelium than those inoculated after one year.
Zbadano możliwości wykorzystania boczniaka ostrygowatego (Pleurotus ostreatus) do szczepienia pniakow bukowych i dębowych w celu ograniczania bazy pokarmowej opieniek (Armillaria spp.). Biopreparat na podłożu trocinowym przygotowano w Zakładzie Mikologii i Fitopatologii Leśnej SGGW w Warszawie. Doświadczenie założono na 5 powierzchniach, na siedlisku LMśw, w Nadleśnictwie Rogow. Na wszystkich powierzchniach przed założeniem doświadczenia obserwowano występowanie objawów opieńkowej zgnilizny korzeni. Inokulowano pniaki powstałe zaraz po ścięciu drzew oraz ok. 5- i 12-miesięczne. W sumie, w latach 2002– 2004, zaszczepiono 60 pniaków bukowych i 50 dębowych. Na zainfekowanych pniakach oceniano występowanie grzybni i owocników boczniaka ostrygowatego oraz obecność innych gatunków grzybów wielkoowocnikowych. Makroskopowo określano zasięg widocznej zgnilizny i potwierdzano sprawcę (Pleurotus ostreatus) poprzez izolację i identyfikację grzybni z fragmentów drewna wykarczowanych trzech pniaków bukowych i trzech dębowych. Stwierdzono, że grzybnia boczniaka ostrygowatego znacznie skuteczniej kolonizowała pniaki bukowe niż dębowe. Pniaki powstałe zaraz po ścięciu drzewa oraz 5-miesięczne były efektywniej zasiedlane przez grzybnię boczniaka niż pniaki inokulowane po roku od momentu ich powstania. W trakcie trwania doświadczenia na szczepionych pniakach bukowych odnotowano owocniki 19 gatunków grzybów wielkoowocnikowych, a na pniakach dębowych 16 gatunków. Pniaki bukowe najliczniej były kolonizowane przez Bjerkandera adusta i Trametes versicolor, natomiast pniaki dębowe przez Stereum hirsutum.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2007-2008, 49-50
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fusarium equiseti as one of the main Fusarium species causing wilt and root rot of chickpeas in Morocco
Autorzy:
El Hazzat, Naila
Adnani, Manal
Soukaina, Msairi
El Alaoui, My Abdelaziz
Mouden, Najoua
Chliyeh, Mohamed
Boughribil, Said
Selmaoui, Karima
Ouazzani Touhami, Amina
Douira, Allal
Powiązania:
https://bibliotekanauki.pl/articles/11543480.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
chickpeas
inoculation
Fusarium equiseti
rot
wilting
Opis:
Fungal isolates of Fusarium were collected from symptomatic chickpea (Cicer arietinum L.) plants growing in fields within Souk Tlat commune in the Gharb region. Morphological and molecular characterizations were performed of the fungal isolate N3 obtained from a chickpea plant. PCR amplification and sequencing of the internal transcribed spacer using the primers ITS1 and ITS4 was applied to identify the fungal isolate N3. The maximum similarity index of the fungus was found to be 99.33% with Fusarium equiseti (accession no. MT111122). In the pathogenicity test, both chickpea seed dip inoculation and soil infestation by the spore suspension of Fusarium isolate were adopted. Four weeks after chickpea seed inoculation, few plants emerged and those that emerged were stunted. A high percentage of inoculated seeds did not emerge and showed accentuated rot symptoms. Eight weeks after sowing seeds in infested soil, the obtained chickpea seedlings displayed root necrosis, browning at the crown, and wilting. In addition, these plants showed a foliar alteration index of 0.395. The re-isolation was positive for different parts of chickpea plants for both seed and soil inoculation. Fusarium equiseti isolate decreased the length of the root and aerial parts, and number of leaves and branches of the inoculated chickpea plants either by seed inoculation or soil infestation with values of 0.91 cm and 19.73 cm, 1.29 cm and 19.44 cm, 1.11 and 18.66, and 0.0 and 2.08 respectively, whereas the corresponding values for the control plants were 27.16 and 28.33 cm, 29.05 and 31.05 cm, 24.21 and 25.66, and 3.50 and 3.11, respectively. To the best of our knowledge, this is the first report of F. equiseti on chickpea (Cicer arietinum L.) in Morocco.
Źródło:
Acta Mycologica; 2022, 57; 576
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mycorrhizal inoculation as an alternative in the ecological production of tomato (Lycopersicon esculentum Mill.)
Autorzy:
Jamiołkowska, A.
Thanoon, A.H.
Skwaryło-Bednarz, B.
Patkowska, E.
Mielniczuk, E.
Powiązania:
https://bibliotekanauki.pl/articles/2082882.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
nutrition
tomato
ecological production
mycorrhizal
inoculation
Opis:
The aim of study was to investigate the effect of two mycorrhizal fungus species Claroideoglomus etunicatum and Rhizophagus intraradices on the uptake of macronutrients and on the growth and yield of tomato hybrid plants cultivated in an ecological system. The experiment was carried out at an ecological farm in Grądy in the Lublin province of Poland, for three years (2015-2017). The experimental treatments included plants inoculated with Claroideoglomus etunicatum, Rhizophagus intraradices and plants without mycorrhizal inoculation used as a control. The mycorrhization of tomato roots with Claroideoglomus etunicatum and Rhizophagus intraradices resulted in an improved uptake of Ca and K through the plants. The length of the tomato roots, especially for the cultivars treated with Claroideoglomus etunicatum, were statistically longer than those of the control. Tomato roots inoculation with both of the studied mycorrhizal fungus strains significantly influenced the number of tomato leaves and improved the health status of the plant. The yield of tomato was not significantly affected by mycorrhization but Claroideoglomus etunicatum, to a greater extent than Rhizophagus intraradices reduced the yield of diseased fruit compared to the control. Among the studied mycorrhizal fungus species, better results were obtained with the application of Claroideoglomus etunicatum as compared with Rhizophagus intraradices for all examined features. Mycorrhizal inoculation contributed to the better growth of the plants, it improved their health and may be beneficially applied in the ecological production of tomatoes.
Źródło:
International Agrophysics; 2020, 34, 2; 253-264
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reakcja na wirus M ziemniaka (PVM) tetraploidalnych rodów ziemniaka
The reaction of tetraploid potato clones to Potato virus M (PVM) infection
Autorzy:
Tatarowska, Beata
Milczarek, Dorota
Plich, Jarosław
Flis, Bogdan
Powiązania:
https://bibliotekanauki.pl/articles/2199186.pdf
Data publikacji:
2016-12-30
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
gen Rm
inokulacja mechaniczna
inokulacja przez szczepienie
PVM
ziemniak
dene RM
mechanical inoculation
inoculation by grafting
potato
Opis:
Celem pracy było określenie reakcji rodów 4x ziemniaka na dwa różne szczepy wirusa M ziemniaka (PVM). Odporność ocenianych 15 rodów tetraploidalnych, pochodząca od S. megistacrolobum związana jest z reakcją nekrotyczną warunkowaną obecnością genu Rm. Do oceny odporności na PVM zastosowano metodę inokulacji mechanicznej i przez szczepienie. Do zakażeń wykorzystano dwa szczepy: z odmiany Uran (M-U) oraz z odmiany Giewont (M55a). W badanych rodach i 3 odmianach wzorcowych sprawdzono obecność markerów molekularnych sprzężonych z genem Rm (GP 283 i GP 250). Reakcje roślin po zakażeniu wirusem M ziemniaka były bardzo zmienne i zależały od genotypu roślin i zastosowanego szczepu PVM. Rody podzielono na grupy w zależności od obserwowanej reakcji na zakażenie PVM. Różnorodność i zmienność reakcji wskazuje, iż uwarunkowanie odporności na PVM jest bardzo złożone i należy dalej poszukiwać „hipotetycznego” czynnika związanego z genem Rm.
The aim of the study was to identify the response of potato clones (4x) to inoculation with two different strains of the Potato virus M (PVM). The resistance of the evaluated 15 tetraploid clones is derived from S. megistacrolobum and is connected to necrotic reaction governed by the gene Rm. For evaluation of resistance to the PVM, the mechanical inoculation and inoculation by grafting were applied. For the inoculation of potato plants, two strains of PVM were used, namely strain from potato cv. Uran (M-U) and strain from cv. Giewont (M55a). The tested clones and standard cultivars were checked for the presence of molecular markers GP 283 and GP 250, which are linked with the resistance gene Rm. The reaction of plants after inoculation with PVM was variable and depended on the plant genotype and the strain of the virus. The examined clones were divided into groups depending on the observed response to infection with PVM. The diversity and variability of this response indicate very complex conditioning of resistance to PVM and the "hypothetical” factor associated with gene Rm should be still sought.
Źródło:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2016, 280; 23-33
0373-7837
2657-8913
Pojawia się w:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermodynamic Analysis of the Graphite Flake Formation of Low Manganese and Sulfur Gray Cast Iron
Autorzy:
Reyes-Castellanos, G.
Cruz-Ramírez, A.
Colin-García, E.
Gutiérrez-Pérez, V. H.
Powiązania:
https://bibliotekanauki.pl/articles/2049436.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gray iron
inoculation
cell count
thermodynamic analysis
Opis:
Low manganese and sulfur gray irons were produced by adding inoculant base Fe-Si with small amounts of Al and Ca in the ladle. The effect of the cast thickness, inoculant amount and shakeout time of the green sand molds were studied on the graphite flake formation by microscopically techniques. A thermodynamic analysis was carried out for the cast iron produced with the FactSage 7.2 software. Stability phase diagrams were obtained for both gray cast irons to different manganese (0.1 to 0.9 wt.%) and sulfur (0.01 to 0.12 wt.%) amounts to 1150°C. It was shown that lower amounts of manganese and sulfur allow forming the 3Al2O3·2SiO2, Al2O3, and ZrO2 solid compounds. The thermodynamic results match with those obtained by SEM-EDS. It is possible to form MnS particles in the liquid phase when the solubility product (%Mn) × (%S) equals 0.042 and 0.039 for heats A and B, respectively.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 1; 249-258
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Halotolerant fungi stimulate growth and mitigate salt stress in Alnus glutinosa Gaertn.
Autorzy:
Thiem, D.
Tyburski, J.
Golebiewski, M.
Hrynkiewicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/2077648.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
black alder
ectomycorrhiza
saprophytic fungi
inoculation
proline
Opis:
Soil salinity is an important abiotic stress factor that reduces both plant growth and development and decreases diversity and metabolic potential of microorganisms, particularly fungi. However, some fun- gal isolates, including mycorrhizal fungi, can increase tolerance of plants to salinity, e.g. by activation of de- fense mechanisms. Main aim of our study was: (i) to identify and characterize fungal strains isolated from fruitbodies growing at saline test sites and (ii) to determine the effect of fungal inoculation on the growth and salinity tolerance of Alnus glutinosa Gaertn. seedlings. Two ectomycorrhizal strains (Amanita muscaria OW-10 and Paxillus involutus OW-5) and a saprotrophic one (Gymnopus sp. OW-6) were isolated from fruit- bodies collected at naturally saline test sites. The plant growth promotion was observed after inoculation of plants with the ectomycorrhizal fungus – P. involutus OW-5, while the use of Gymnopus sp. OW-6, displaying the highest hydrolytic activity, decreased seedling growth parameters. Moreover, P. involutus OW-5 (char- acterized by characterized by medium salt tolerance salt tolerance) promoted growth of black alder in the presence of salt, while A. muscaria OW-10 (with the highest salt tolerance) increased fresh and dry mass of seedlings only in the absence of salt. Black alder seedlings inoculated with P. involutus OW-5 revealed higher synthesis of proline in aboveground organs compared to the control plants which suggested that accumulation of this compound can be a mechanism protecting black alder seedlings against salt stress. In conclusion, we recommend the use of P. involutus OW-5, which displayed the best plant growth promoting ability and salt tolerance, for inoculation of black alder trees used in reclamation of saline habitats
Źródło:
Dendrobiology; 2020, 83; 30-42
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ różnych szczepionek mikoryzowych na wzrost sosny i liczbę pączków
Effect of different mycorrhiza mycelium types on growth of Pinus sylvestris L.
Autorzy:
Kubiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/289506.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
inokulacja
nasadzenia
szczepionka mikoryzowa
inoculation
mycorrhiza mycelium
planting
Opis:
Z uwagi na duże powierzchnie do zalesienia (ok. 2 mln ha) w kraju i produkcję różnych szczepionek mikoryzowych przez wiele firm, istnieje potrzeba powołania jednostki niezależnej, określającej przydatność i dopuszczanie do handlu szczepionek spełniających określone kryteria. Badania porównawcze prowadzone przez niezależną jednostkę naukową pozwolą na wyeliminowanie szczepionek pochodzących z odmiennych warunków klimatycznych i nie mających zastosowania w zróżnicowanych warunkach klimatycznych i glebowych Polski oraz ciągłą niezależną ich weryfikację.
Taking into account large areas assigned to afforestation (2 millions hectares) in Poland and production of different mycorrhiza mycelium by many companies there are a need to establish an independent unit, which will determine usability and issue permits to produce and sell mycorrhiza mycelium, which satisfy suitable criteria. The comparative analyses, carried out by the independent research unit, can help to eliminate mycorrhiza mycelium coming from the areas with inadequate climatic conditions and unusable in different climatic and soil conditions in Poland. Moreover, there will be a possibility to verity application of different types of mycorrhiza mycelium in Polish conditions.
Źródło:
Inżynieria Rolnicza; 2007, R. 11, nr 3 (91), 3 (91); 123-128
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Fe-Ti Inoculation on Solidification, Structure and Mechanical Properties of High Chromium Cast Iron
Autorzy:
Kopyciński, D.
Siekaniec, D.
Szczęsny, A.
Guzik, E.
Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/353234.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
high chromium cast iron
inoculation
titanium
mechanical properties
Opis:
The results of studies of the effect of different amounts of the Fe-Ti inoculant on structure and selected mechanical properties of High Chromium Cast Iron (conventionally abbreviated as HCCI) are presented. The main purpose of the inoculation is structure refinement and hence the improvement of casting properties. Generally considered a strong carbide-forming element, titanium is an effective inoculant for the high chromium cast iron. However, there is an optimal amount of titanium addition beyond which the mechanical properties begin to deteriorate. The studies enabled determining the amount of Fe-Ti inoculant optimal for the cast iron of a given chemical composition.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 4; 2183-2187
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Koinkulacja in vitro siewek kukurydzy bakteriami diazotroficznymi
In vitro co-inoculation of maize seedlings with diazotrophic bacteria
Autorzy:
Klama, J.
Niewiadomska, A.
Wolna-Maruwka, A.
Powiązania:
https://bibliotekanauki.pl/articles/339294.pdf
Data publikacji:
2010
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Azospirillum
diazotrofy
koinokulacja
kukurydza
Rhizobium
co-inoculation
diazotrophs
maize
Opis:
Wiele prac badawczych potwierdza korzystny wpływ preparatów mikrobiologicznych na rozwój roślin. W wielu krajach odnotowano pozytywne efekty szczepienia roślin diazotroficznymi bakteriami endofitycznymi na poziom związanego przez nie azotu oraz wpływu na kondycję roślin. W ostatnich latach efektywnym zabiegiem okazała się koinokulacja roślin różnymi szczepami bakterii. Celem badań prezentowanych w pracy było przedstawienie wpływu szczepienia kukurydzy bakteriami diazotroficznymi: Rhizobium leguminosarum odmiany trifolii oraz Rhizobium leguminosarum odmiany phaseoli i Azospirillum doebereinerae. Przeprowadzone badania miały na celu określenie wpływu łącznego zastosowania obu szczepów na kondycję i rozwój badanej rośliny oraz poziom związanego przez nie azotu. Efekt wiązania azotu przez użyte w doświadczeniu szczepy bakterii był niewielki, niezależnie od rodzaju użytych do szczepienia mikroorganizmów. Stwierdzono natomiast różnice indeksu zieloności liścia oraz stopnia zasiedlenia korzeni przez mikroorganizmy, w zależności od zastosowanego rodzaju szczepienia kukurydzy.
Many research works confirm positive effects of plant treatment with microbiological preparations. The commonly known phenomenon of inoculation of legume plants with the nodule bacteria inoculum is widely applied in agricultural practise. In the recent years, studies have been intensified on the application of endophytic bacteria to economically important plants for the same purpose. In many countries, positive effects have been recorded of the inoculation of plants with diazotrophic endophytic bacteria on plant condition and the amount of fixed nitrogen. In the recent years, particular interest has been devoted to the application of plant inoculation with different bacterial strains. The objective of this study was to recognise the effect of maize inoculation with two varieties of diazotrophic bacteria Rhizobium leguminosarum bv. trifolii and phaseoli and with Azospirillum doebereinerae. The experiments were aimed to demonstrate the effect of the cumulated application of both strains on the development of studied plants and to determine the amount of fixed nitrogen. Nitrogen fixation by bacterial strains used in the experiment was not high, irrespective of the type of microorganisms used for inoculation. Differences were, however, found in the leaf greenery index in relation to the applied inoculation of maize. Furthermore, the number of bacteria in the root tissue indicated significant differences in root colonisation by microorganisms.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2010, 10, 2; 103-110
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of P and K fertilizer recommendation for faba bean in Ethiopia: the case for Sekela District
Autorzy:
Getu, Abebe
Gashu, Kindu
Mengie, Yechale
Agumas, Birhanu
Abewa, Anteneh
Alemayehu, Amlaku
Powiązania:
https://bibliotekanauki.pl/articles/1031495.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Sekela
Vicia faba
faba bean
fertilizer
phosphorus
rhizobia inoculation
Opis:
Ethiopian soils are recently reported to exhibit multi-nutrient deficiency. Legume crops can satisfy their nitrogen (N) demand through biological N fixation. However, other nutrients should be supplied in optimal amount in the form of fertilizers. Thus, this study was conducted to evaluate the response of faba bean to different levels of phosphorus (P) and potassium (K) fertilizers. The study was conducted in Sekela district of West Gojam Zone of Amhara region from 2014 to 2015. Four levels of K (0, 12, 24 and 36 K2O kg ha-1) and five levels of P (0, 23, 46, 69 and 92 kg P2O5 ha-1) in the first year and four levels of P (0, 23, 46 and 69 kg P2O5 ha-1) in the second and third years were combined in incomplete factorial arrangement with a satellite treatment comprising S, Zn, Mg and B. Except the control treatment (non-fertilized), all the rest treatments were inoculated with FB-4 in the first year and EAL-110 rhizobia bacteria in the second and third experimental years. The treatments were laid in a randomized complete block design with three replications. P, K, S and Mg fertilizers were applied as basal application, while, the micronutrients Zn and B were applied as foliar application 45 days after planting. Significant (P<0.05) yield response to the addition of P and K fertilizers was recorded in two experimental years. In the first experimental year, the highest grain of 3.2 t ha-1 was obtained from application of 92/24 P2O5/K2O kg ha-1 statistically at par with 46/0 P2O5/K2O kg ha-1. While, in the second experimental year, the maximum grain yield of 4.3 t ha-1 was obtained from application of 46/0 P2O5/K2O kg ha-1. The partial budget analysis result showed that the maximum marginal rates of return of 611 and 463.5% and maximum net economic returns of 1768.1$ and 2975.2$ were obtained from application of 46 kg P2O5 ha-1 in the first and second experimental years, respectively. Thus, the combined use of the rhizobia strains FB-4 and EAL-110 with 46 kg P2O5 ha-1 is recommended to improve productivity and economic return of faba bean production in Sekela district and similar agro-ecologies.
Źródło:
World Scientific News; 2020, 142; 169-179
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ modyfikacji bezpośredniej w formie odlewniczej na strukturę stopów żelaza
Effect of direct in-mould inoculation on the structure of iron alloys
Autorzy:
Tybulczuk, J.
Jaśkowiec, K.
Gwiżdż, A.
Powiązania:
https://bibliotekanauki.pl/articles/391415.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
Tematy:
modyfikacja
metody modyfikacji
odlewy cienkościenne
żeliwo sferoidalne
staliwo stopowe
inoculation
methods of inoculation
thin-wall castings
ductile iron
alloyed cast steel
Opis:
W trakcie realizowanego projektu przeprowadzono serie badań nad wpływem rozdrobnionego modyfikatora naniesionego na powierzchnię formy na zmiany struktury powierzchni odlewów z żeliwa sferoidalnego i staliwa stopowego. Podczas prac przygotowawczych zdecydowano się na użycie dla żeliwa taniego i dostępnego modyfikatora FeSi75T, natomiast dla staliwa austenitycznego typu SUS316 (LH17N17M3) użyto specjalnie wytopiony i przygotowany modyfikator FeNbC. Sam proces modyfikacji polegał na rozpuszczeniu naniesionej warstwy modyfikatora, co wymagało doboru odpowiedniej granulacji oraz ilości modyfikatora umożliwiającej zajście procesu modyfikacji i wystąpienie oczekiwanych efektów, tj. głównie rozdrobnienia i zwiększenia ilości wydzieleń grafitu w żeliwie oraz rozdrobnienia ziarna w przypadku staliwa.
In the course of the executed project, a series of investigations has been made to establish what effect a refined inoculant applied on the mould surface can have on changes in the surface structure of castings made from ductile iron and alloyed cast steel. During preliminary research it was decided to use a cheap and readily available FeSi75T inoculant for cast iron, while for the austenitic SUS316 (LH17N17M3) cast steel, a FeNbC inoculant after special melting and treatment was selected. The inoculation process consisted in dissolving the applied layer of inoculant, thus requiring the choice of a best amount of the inoculant of proper granulation to induce the inoculation process along with all the expected effects, i.e. raising the number of graphite precipitates in cast iron combined with their refinement, and grain refinement in cast steel.
Źródło:
Prace Instytutu Odlewnictwa; 2010, 50, 3; 17-26
1899-2439
Pojawia się w:
Prace Instytutu Odlewnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trophic Abilities of Trametes Gibbosa (Polyporales, Basidiomycota) With Respect to The Wood of Fagus Sylvatica
Autorzy:
Piętka, Jacek
Szczepkowski, Andrzej
Ronikier, Michał
Saługa, Marta
Powiązania:
https://bibliotekanauki.pl/articles/27323534.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
wood decay fungi
white rot
fungal inoculation
molecular identification
Opis:
Trametes gibbosa is a widespread polypore fungus occurring throughout Europe and Asia. It is considered a saprotroph occasionally exhibiting parasitic activity. The aims of the present experimental work were to: (1) determine the ability of T. gibbosa pure culture to decompose beech wood under laboratory conditions, (2) test the trophic abilities of T. gibbosa by comparative analysis of the development of its mycelium inoculated into the stems of living beech trees and into beech rollers (stem segments – dead substrate). The laboratory wood decay experiment revealed considerable weight loss of the beech wood samples exposed to T. gibbosa (32.7% after 120 days). Identification of the mycelium used for inoculation in natural forest conditions was done by morphological analysis of the cultures and molecular barcoding. Attempts to recover T. gibbosa mycelium were made after two and eight years for the living trees, and after two years for the rollers. While T. gibbosa could not be reisolated from the inoculated beech trees, basidiomata were observed on the beech rollers, and genetically verified T. gibbosa mycelium was extracted from them. We conclude that T. gibbosa exhibits strong saprotrophic inclinations.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2023, 66, 211; Art. no. 1644-3985.413.08
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Different Commercial Rhizobial Strains on Soybean (Glycine max L.) Yield at Pawe District, Northwestern Ethiopia
Autorzy:
Merkeb, Fitsum
Redi, Musefa
Gebremedhin, Wubayehu
Powiązania:
https://bibliotekanauki.pl/articles/1192590.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Commercial Rhizobial Strain
Glycine max L.
Soybean
Inoculation
Nodule
Opis:
Two experiments were conducted during 2010 and 2011 main cropping seasons under different farmer fields at Pawe District of Northwestern Ethiopia in order to evaluate different commercially produced microbial inoculants, referred to as commercial rhizobial strains, on soybean yield. The first experiment was conducted with the aim of evaluating four commercial rhizobial strains (Legume fix, TSBF-531, TSBF-442 and MAR-1495) on soybean yield, while the second experiment conducted with the aim of evaluating and selecting the best rhizobial strain from the two rhizobial strains (Legume fix and MAR-1495). Non-inoculated soybean with and without the recommended rate (RR) of nitrogen (N) fertilizer treatments also included in the experiments. Treatments were arranged in a single replicate per field. Recommended rate of phosphorous (P) fertilizer was applied uniformly to all treatments. The two experiments analysis of variance indicated that there was significant difference (P < 0.05) among treatments in number of nodules, nodule weight, biomass yield and grain yield of soybean. Accordingly, the first experiment result indicated that the highest number of nodules, nodule weight, biomass yield and grain yield were recorded by using rhizobial strains of legume fix and MAR-1495. The second experiment result revealed that rhizobial strain MAR-1495 resulted consistent and highest number of nodules, nodule weight, biomass yield and grain yield of soybean. The increment in grain yield over the un-inoculated control, legume fix and full RR of N fertilized treatments recorded by MAR-1495 was 25.5, 9.7 and 9.9%, respectively. Moreover, inoculation of soybean seeds with rhizobial strain MAR-1495 also resulted to higher protein content in soybean plant tissue. Therefore, this study recommends use of the most suitable commercial rhizobial strain MAR-1495 for the study area to inoculate seeds before sowing for the production of soybean crop.
Źródło:
World Scientific News; 2016, 55; 15-26
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Response of soybean to inoculation with Bradyhrizobia spp. strains: effect on root nodulation, yield and residual soil nitrogen
Autorzy:
Getu, Abebe
Gashu, Kindu
Kerebih, Bitewulign
Wale, Sefinew
Getaneh, Dessalegn
Powiązania:
https://bibliotekanauki.pl/articles/1062932.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Bradyrhizobium japonicum
Glycine max
Jabitehnan
bradyrhizobia
fertilizer
inoculation
soybean
strain
Opis:
Soybean (Glycine max (L.) Merrill) is an exotic crop to Ethiopia. Hence, inoculation with effective Bradyrhizobia spp. is crucial to improve its productivity. This study was therefore conducted in West Gojam Zone of Amhara Region in 2015 and 2016 aimed at evaluating the effect of bradyrhizobia strains (MAR-1495, SB-12 and TAL-379) with and without phosphorus fertilizer (23 kg P2O5 ha-1) on root nodulation and yield of soybean, and on residual soil nitrogen. The treatments were laid in randomized complete block design including a satellite control treatment with three replications. Effect of the use of rhizobia strains and P fertilizer on nodulation, yield and yield components of soybean was found statistically significant (P<0.05). The highest grain and dry matter yields of 2.7 and 6.4 t ha-1, respectively, were obtained from MAR-1495+P which was statistically at par with the yields obtained from MAR-1495 alone. A grain yield advantage of 30.8% over the control treatment was found from the use of MAR-1495 alone. Similarly, the maximum number of effective nodules (14.9) per plant was recorded from MAR-1495+P which was statistically at par with the number of effective nodules (11.6) per plant counted from MAR-1495 inoculated treatment. The highest residual soil N exceeding the control treatment by 0.029% (0.29 g total N per kg soil) was obtained from MAR-1495 alone. Therefore, inoculation with the strain MAR-1495 was found the most effective for improved soybean production in the study district and similar agroecologies.
Źródło:
World Scientific News; 2019, 124, 2; 94-106
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 88

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