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Tytuł:
Impact of growth inhibitor Bercema on shoots regrowth of perennial ryegrass and cocksfoot
Autorzy:
Wiśniewska-Kadżajan, B
Jankowski, K
Malinowska, E.
Sosnowski, J.
Kolczarek, R
Powiązania:
https://bibliotekanauki.pl/articles/123968.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
growth regulator Bercema
perennial ryegrass
cocksfoot
Opis:
In a pot experiment conducted in a greenhouse, the effect of CCC Bercema growth inhibitor to reduce vegetative shoot growth of perennial ryegrass and cocksfoot was studded. The experiment was set up in triplicate. Growth regulator was applied once, in a form of an aqueous solution. The following experimental objects were specified: control object, Bercema with a concentration of 10%, 20% and 30%. Ten measurements were performed every 3 days. The study was conducted under conditions of 12-hour artificial light daily. The results were statistically analyzed using two-factorial variance analysis . It was found that the greatest shoot growth reduction of ryegrass due to the highest inhibitor concentration (B- 30%), but for cocksfoot under the influence of the minimal concentration (B- 10%), compared to the control object. It has been noted that cocksfoot is more sensitive to the applied growth regulator, resulted in significantly greater inhibition of shoot regrowth than for ryegrass. In the experiment with the perennial ryegrass significant differences in the growth of shoots were found under the influence of inhibitor application at a concentration of 30%, compared to the control object. In the case of cocksfoot, all the concentration increases of Bercema inhibitor significantly differentiated the shoots regrowth.
Źródło:
Journal of Ecological Engineering; 2014, 15, 2; 108-111
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Content of various forms of nitrogen and absorption of this element by cocksfoot grass, depending on meteorological conditions
Zawartosc roznych form azotu oraz pobranie tego skladnika przez kupkowke pospolita w zaleznosci od przebiegu warunkow meteorologicznych
Autorzy:
Bednarek, W
Bednarek, H.
Dresler, S.
Powiązania:
https://bibliotekanauki.pl/articles/15619.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
nitrogen form
nitrogen uptake
nitrogen content
cocksfoot
grass
meteorological condition
Opis:
The dependence of the content of various forms of nitrogen and absorption of N by cocksfoot grass on meteorological conditions was established in a field experiment. Correlations between the content of total nitrogen, protein nitrogen, N-NH4, and N-NO3 in sward and roots of cocksfoot grass and some meteorological elements, i.e. maximum temperature, minimum temperature, average daily temperature measured at 5 and 200 cm, air relative humidity, cloud cover, sum of precipitation, sum of evaporation and soil temperature measured at a depth of 2, 5, 10, 20 cm were analyzed. Correlation coefficients between the forms of nitrogen in the plant and the above meteorological elements were calculated, as well as multiple regression equations, multiple correlation coefficients and determination coefficients. No significant relationship between the forms of N (Ntotal, Nprotein, N-NH4, N-NO3) in sward and roots of cocksfoot grass and the course of meteorological conditions was clearly stated. The relationship between the content of N-NH4 in sward and Ntotal and N-NO3 in roots, and certain meteorological elements is relatively small and can be characterized by the value of determination coefficients, i.e. 0.166, 0.106 and 0.151, respectively. According to the statistical analysis, the absorption of nitrogen by cocksfoot grass depends to a relatively small though significant extent (R2=0.249) on certain meteorological elements. However, further research is still recommended.
Na podstawie wyników ze ścisłego doświadczenia polowego określono zależność zawartości różnych form azotu oraz pobranie N przez kupkówkę pospolitą od przebiegu warunków meteorologicznych. Rozpatrywano korelacje między zawartością azotu ogółem, azotu białkowego, N-NH4 i N-NO3 w runi i korzeniach kupkówki a niektórymi elementami meteorologicznymi: temperaturą powietrza maksymalną, minimalną, średnią dobową mierzoną na wysokości 5 i 200 cm, wilgotnością względną powietrza, zachmurzeniem, sumą opadu atmosferycznego, sumą parowania i temperaturą gleby mierzoną na głębokości 2, 5, 10, 20 cm. Obliczono współczynniki korelacji między formami azotu w roślinie a przebiegiem wymienionych elementów meteorologicznych oraz równania regresji wielokrotnej, współczynniki korelacji wielokrotnej i determinacji. Nie stwierdzono jednoznacznie, że istniała istotna zależność zawartości form azotu (Nog., Nbiał., N-NH4, N-NO3) w runi i korzeniach kupkówki pospolitej od przebiegu warunków meteorologicznych. Zależność, która wystąpiła między zawartością N-NH4 w runi oraz Nog. i N-NO3 w korzeniach a niektórymi elementami meteorologicznymi, jest stosunkowo niewielka i można ją scharakteryzować wielkością współczynników determinacji, kolejno: 0,166; 0,106 i 0,151. Pobranie azotu przez kupkówkę pospolitą zależało w stosunkowo niewielkim, lecz istotnym, stopniu (R2=0,249) od przebiegu niektórych elementów meteorologicznych. Wskazują na to rezultaty obliczeń statystycznych; nieodzowne jest kontynuowanie prac dotyczących omawianych zagadnień.
Źródło:
Journal of Elementology; 2009, 14, 2; 207-216
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Próba syntetycznej oceny wartości użytkowej odmian kupkówki pospolitej
Popytka sinteticheskojj ocenki poleznykh kachestv ezhi sbornojj
Attempt of a synthetic evaluation of useful traits of cocksfoot
Autorzy:
Domanski, P.
Powiązania:
https://bibliotekanauki.pl/articles/810635.pdf
Data publikacji:
1988
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Opis:
Полезные качества ежи сборной оценивали на основании точных сортовых опытов проведенных в период 1977-1982 гг. Для модельных расчетов были приняты данные первого и третьего годов пользования. Величину урожая сравниваемых восьми зарегистрированных сортов ежи сбо рной выражали показателем количества урожая ( Wᵢ ). Изменчивость урожаев измеряли используя показатель распределения урожая в вегетационный период (Zₛ ) и на протяжении лет использования (Zₜ). Третьим основным элементом комплексной оценки качества сортов является качество урожая выраженное переваримостью растительной массы (s). Синтетическая оценка полезных качеств сортов определяется суммой значений Wᵢ, Zₛ , Zₜ, S. Установлены статистически существенные разницы в качестве сортов ежи сборной. Высокой урожайность отличались сорта Бара и Бепро. Значительной изменчивостью урожайности в вегетационный период характеризовался раннеспелый сорт Бепро, а на протяжении лет пользования - сорт Сатра. Самую высокую балльную оценку получил сорт Бара (15,34). Меньшее полезные качества показывали сорта База и Накельска, получившие соответственно 14,81 и 14,77 баллов.
The evaluation of useful traits of cocksfoot (Dactylis glomerata L.) was performed on the basis of exact variety experiments carried out in the period 1977- 1982. Results of the first and third utilization year were assumed in model calculations. The yield level of eight compared registered cocksfoot varieties were expressed by the yield magnitude index (Wᵢ). The yielding variability was measured using the index of yield distribution In the growing season (Zₛ ) and in utilization years (Zₜ). The third basic constituent of complex evaluation of varieties constituted the yield quality expressed by the plant matter digestibility(S). The synthetic estimation of useful value of particular varieties was determined by the sum of Wᵢ, Zₛ, Zₜ and S values. Statistically significant differentiation of cocksfoot varieties has been proved. With a high fertility distinguished themselves the Baza and Bepro varieties. A considerable variability of yielding in the growing season showed the early Bepro variety and in particular utilization years - the Satra variety. The best dry matter digestibility in three subsequent regrowths was found in the Bema variety. A distinctly high joint score evaluation obtained the Bara variety (15.34). Less useful value showed the Baza and Nakielska varieties, which obtained by 14.81 and 14.77 scores.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 1988, 366
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Waste Materials on the Content of Some Macroelements in Test Plants
Autorzy:
Godlewska, Agnieszka
Becher, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1839625.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage sludge
hard coal ash
mineral fertilisation
cocksfoot
maize
Opis:
The study reported here was to determine the effect of an application of organic and mineral materials and their mixtures, combined with mineral fertiliser regime, on the content of selected macroelements in cocksfoot grass and maize. The trial was a completely randomised arrangement with three replicates. Two experimental factors were tested: factor A – fertilisation with organic and mineral materials ( sewage sludge fresh and composted, hard coal incineration ashes , calcium carbonate, mixture of this components) and factor B – mineral fertilisation. The observed effects are indicative of the legitimacy of applying sewage sludge and its mixture with hard coal ash to fertilise agricultural crops as this would reduce reliance on mineral fertiliser, which is very desirable in sustainable agriculture. Mineral fertilisation applied to both the test plants significantly reduced their contents of calcium and magnesium but it increased their content of potassium.
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 167-174
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of sulphur fertilization on the content of components influencing fodder quality in cocksfoot (Dactylis glomerata L.)
Autorzy:
Krzepiłko, A.
Brodowska, M.
Skwaryło-Bednarz, B.
Skowrońska, M.
Brodowski, R.
Andrzejewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/958257.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The nutritional value of animal feed primarily depends on its chemical composition (content of crude protein, crude ash, crude fibre, crude fat and nitrogen-free extracts), which is to some extent determined by fertilization with sulphur. The aim of the study was to evaluate the effect of different sulphur application regimes on selected quality parameters of cocksfoot Dactylis glomerata L. A field experiment was conducted on brown eutrophic soil. Sulphur was applied in two doses: 10 kg S ha-1, and 20 kg S ha-1. In addition, each experimental treatment was fertilized with 120 kg N ha-1, 30 kg P ha-1, 100 kg K ha-1, and 15 kg Mg ha-1. During the growing period from March to September, air temperature and precipitation were monitored. Fertilization with sulphur was found to affect the content of crude fibre, crude ash, crude fat, cystine and methionine in cocksfoot, while no correlation was observed between the content of these chemical components and the weather conditions. The concentration of nitrogen-free extracts did not vary significantly in response to sulphur application, but the content of these compounds correlated with the average precipitation sum, air temperature, and Selyaninov’s coefficient. Sulphur application did not affect the crude protein content, which was significantly correlated with the temperature and Selyaninov’s coefficient during the growing season of cocksfoot. The results of the field experiment suggest that sulphur fertilization of cocksfoot increased the quality of the fodder.
Źródło:
Journal of Elementology; 2017, 22, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Application of Z-Ion Substrate to Support Energy Crop Growth (Dactylis Glomerata L.) on Degraded Soil
Autorzy:
Chomczyńska, Mariola
Rycko, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/1838303.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
energy crop
cocksfoot
Z-ion substrate
degraded soil
Opis:
Investigations concerned the effect of raising the dose of new Z-ion zeolite substrate on cocksfoot (Dactylis glomerata L.) growth. During the pot experiment, plants were grown on degraded soil, arable soil and mixtures of degraded soil with increasing Z-ion substrate additions (1%, 2%, 5%, 10% v/v). When the experiment was terminated, the mean values of the vegetative parameters of test species were calculated. The carbon to nitrogen ratio for cocksfoot stem biomass was determined. The enzyme diversity of the degraded soil enriched with substrate additions after cocksfoot growth (Shannon’s diversity index) was also evaluated. The application of Z-ion additions positively influenced the cocksfoot growth – the additions in the range of 1–10% v/v to degraded soil significantly increased wet and dry stem biomass, dry root biomass and total dry biomass of plants. It turned out that the Z-ion substrate addition not exceeding 1% v/v can be considered as one which – after introducing into a specific degraded soil – would give similar biomass yield of cocksfoot to that obtained on the selected arable soil. At 1% substrate dose, the carbon/nitrogen ratio in the plant material (27.17) was within the range of values ensuring the proper methane fermentation course. The preliminary studies have shown that a significant increase in enzyme diversity can be observed when there is a certain degree of root development caused by a sufficiently high addition of Z-ion substrate to the degraded soil – under experimental conditions it was 5% v/v Z-ion dose.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 106-113
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Application of Z-Ion Substrate to Support Energy Crop Growth (Dactylis Glomerata L.) on Degraded Soil
Autorzy:
Chomczyńska, Mariola
Rycko, Natalia
Powiązania:
https://bibliotekanauki.pl/articles/1838374.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
energy crop
cocksfoot
Z-ion substrate
degraded soil
Opis:
Investigations concerned the effect of raising the dose of new Z-ion zeolite substrate on cocksfoot (Dactylis glomerata L.) growth. During the pot experiment, plants were grown on degraded soil, arable soil and mixtures of degraded soil with increasing Z-ion substrate additions (1%, 2%, 5%, 10% v/v). When the experiment was terminated, the mean values of the vegetative parameters of test species were calculated. The carbon to nitrogen ratio for cocksfoot stem biomass was determined. The enzyme diversity of the degraded soil enriched with substrate additions after cocksfoot growth (Shannon’s diversity index) was also evaluated. The application of Z-ion additions positively influenced the cocksfoot growth – the additions in the range of 1–10% v/v to degraded soil significantly increased wet and dry stem biomass, dry root biomass and total dry biomass of plants. It turned out that the Z-ion substrate addition not exceeding 1% v/v can be considered as one which – after introducing into a specific degraded soil – would give similar biomass yield of cocksfoot to that obtained on the selected arable soil. At 1% substrate dose, the carbon/nitrogen ratio in the plant material (27.17) was within the range of values ensuring the proper methane fermentation course. The preliminary studies have shown that a significant increase in enzyme diversity can be observed when there is a certain degree of root development caused by a sufficiently high addition of Z-ion substrate to the degraded soil – under experimental conditions it was 5% v/v Z-ion dose.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 106-113
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of different concentrations of Kelpak bioregulator on the formation of above-ground biomass cocksfoot
Autorzy:
Sosnowski, J.
Jankowski, K.
Wiśniewska-Kadżajan, B
Jankowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/123878.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
orchard
Kelpak
biomass
SPAD index
leaf blade
yield
Opis:
Studies with growing cocksfoot (cv. Amila) were performed in polyurethane ring with a diameter of 36 cm and a height of 40 cm, which were dug to a depth of 30 cm and filled with soil material. As the experimental factor the trade name of bioregulator Kelpak SL was used, which includes natural plant hormones (auxin and cytokinin). The following aqueous solutions of growth regulator were used: 20, 40, and 60% and control (no preparation). Kelpak were applied to all three regrowth in the form of spray at a dose of 3cm3ring-1 in the shoots elongation phase of the grass. The full use of experimental objects was in 2011-2012. At that time, the detailed study include aboveground biomass yield (g DM•ring-1), leaf length (cm), width of the base of the leaf blade (cm), leaf greenness index (SPAD). On the basis of morphological leaf characters the ratio of leaf blade shaping and the ratio of their surface were calculated. The study showed a significant influence of growth regulator on the development of aboveground biomass of cocksfoot. The greatest effect was obtained with the use of sprays of solutions with a concentration 40 and 60%.
Źródło:
Journal of Ecological Engineering; 2013, 14, 1; 48-52
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the Contents of Selected Heavy Metals in Test Plants Fertilised With Sewage Sludge and Hard Coal Ash
Autorzy:
Godlewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/124235.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage sludge
ash of hard coal
liming
heavy metal
cocksfoot
maize
Opis:
The study aimed at determining changes in the contents of selected metals in the biomass of test plants due to fertilisation with fresh and composted sewage sludge, hard coal ash, and sludge-ash mixture, as well as liming at a background of mineral nutrition. The experimental design was a completely randomised arrangement with three replicates. The following factors were examined: fertilisation with organic and mineral materials (fresh sewage sludge; composted sewage sludge; hard coal ash; calcium carbonate) and mineral fertilisation (no fertilisation; NPK fertilisation). An application of sewage sludge, hard coal ash, and sludge-ash mixture significantly increased maize content of barium. Addition of hard coal ash into sewage sludge contributed to an increase in lead content determined in cocksfoot biomass harvested from the first and second cut, and barium in maize biomass. Soil liming significantly affected barium content the biomass of plants harvested from the first and second cut, as well as in maize biomass. NPK nutrition significantly increased barium concentrations in the biomass of test plants and maize.
Źródło:
Journal of Ecological Engineering; 2017, 18, 2; 97-102
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ warunków siedliskowych i sąsiadujących gatunków na zawartość potasu w kupkówce pospolitej, tymotce łąkowej i życicy trwałej
Influence of habitat conditions and accompanying species on potassium content in cocksfoot, timothy and perennial ryegrass
Autorzy:
Harkot, W.
Powiązania:
https://bibliotekanauki.pl/articles/809821.pdf
Data publikacji:
2001
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2001, 479
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 22

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