Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Young, L." wg kryterium: Wszystkie pola

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 108
Tytuł:
On area and length
Autorzy:
Young, L.
Powiązania:
https://bibliotekanauki.pl/articles/1383605.pdf
Data publikacji:
1948
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Fundamenta Mathematicae; 1948, 35, 1; 275-302
0016-2736
Pojawia się w:
Fundamenta Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supporting young L2 English learners with word recognition: design of early reading materials
Autorzy:
Ellis, Melanie
Powiązania:
https://bibliotekanauki.pl/articles/16461333.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu. Collegium Novum. Polskie Towarzystwo Neofilologiczne
Tematy:
word recognition
decoding
early EFL reading
phonics
materials design
rozpoznawanie wyrazów
dekodowanie
wczesne czytanie w języku angielskim jako J2
kody fonologiczne/ metoda fonetyczna (phonics)
projektowanie materiałów dydaktycznych
Opis:
This theoretical article presents a case for a new approach to the teaching of word recognition in English as a foreign language to young learners in Polish early years education, arguing that there is a need for greater attention to explicit instruction in alphabetic principles, selected phonics and decoding skills. Research in first language (L1) English and foreign language (L2) development of word recognition skills is outlined. Differences between the orthographies of Polish and English are highlighted. Approaches used in L1 early reading instruction are contrasted with those commonly applied in L2 settings. The need for more explicit instruction is rationalized on the basis of a brief description of impressions from 20 hours of classroom observation. The second part of the paper presents some principles for the design of materials to introduce alphabetic principles of English and elements of phonics to support word recognition, with examples. The ability to recognize words rapidly and with ease is a key skill, which, unless mastered early, could potentially have a negative impact on the whole of a child’s language education.
Źródło:
Neofilolog; 2022, 59/2; 126-143
1429-2173
Pojawia się w:
Neofilolog
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Informal talks about writing as a constructive way to develop young L2 learner print awareness
Autorzy:
Zawodniak, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/917981.pdf
Data publikacji:
2011-01-01
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
Print awareness
Dialogical approach
L2 written code
L2 written tasks
Opis:
The article examines the possibilities of fostering young L2 learner print awareness via teaching for conversing about and reflecting on writing. In order to achieve this goal the present author conducted the qualitative research on a group of 2nd-graders engaged in the performance of a series of open-ended L2 written tasks accompanied by L1 cues. The analysis of collected data shows that drawing children’s conscious attention to writing might encourage the constructive transferability of linguistic skills from L1 to L2, thus being conducive to the development of logical thinking necessary for the enhancement of their print awareness.
Źródło:
Glottodidactica. An International Journal of Applied Linguistics; 2011, 37, 1; 95-106
0072-4769
Pojawia się w:
Glottodidactica. An International Journal of Applied Linguistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphological instruction and reading development in young L2 readers: A scoping review of causal relationships
Autorzy:
Ke, Sihui (Echo)
Zhang, Dongbo
Powiązania:
https://bibliotekanauki.pl/articles/1902579.pdf
Data publikacji:
2021-09-13
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
causal effect
morphology
second language reading
literacy
scoping review
Opis:
This scoping review explores the causal relationship between morphological instruction and reading development in young L2 learners by synthesizing 12 primary studies published between 2004 and 2019 (N = 1,535). These studies focused on reading English as the target language and involved participants between kindergarten and Grade 12 from four countries (China, Egypt, Singapore, and the USA). Findings suggested that (a) morphological instruction led to consistent and positive gains in L2 children’s morphological awareness and vocabulary knowledge, and the effect sizes (Cohen’s ds) ranged from small to large; and (b) the relationship between morphological instruction and other outcomes such as phonological awareness, word reading accuracy, word reading fluency, spelling, and reading comprehension was inconclusive. Notably, transfer effects of L2 English morphological instruction on novel word learning in English or on reading development in an additional language were only examined and observed in four primary studies. Discussion was provided regarding future instructional and research design.
Źródło:
Studies in Second Language Learning and Teaching; 2021, 11, 3; 331-350
2083-5205
2084-1965
Pojawia się w:
Studies in Second Language Learning and Teaching
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving christmas rose (Helleborus niger L.) young plants production
Autorzy:
Piskornik, M.
Powiązania:
https://bibliotekanauki.pl/articles/11347101.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
plant production
christmas rose
pot culture
Helleborus niger
seedling
Opis:
At the stage of the first or second leaf christmas rose seedlings were pricked to pots or to multiple pots, the roots being rolled or nipped off during the operation. The quality of young plants was estimated by determining the fresh weight, number, and length of leaves and roots. The best quality of young plants was obtained from christmas rose seedlings pricked at the stage of the second leaf and with roots rolled when planted to pots.
Siewki ciemiernika białego pikowano do doniczek lub wielodoniczek, w stadium pierwszego lub drugiego liścia właściwego, zwijając lub uszczykując korzenie w trakcie tej czynności. Jakość rozsady oceniono, określając świeżą masę, liczbę i długość liści oraz korzeni. Dobrą jakość rozsady uzyskano z siewek ciemiernika białego, których korzenie zwijano w trakcie pikowania do doniczek w stadium drugiego liścia właściwego.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2003, 02, 2; 69-74
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mycobiota of thin roots showing decay of Fraxinus excelsior L. young trees
Autorzy:
Przybyl, K
Powiązania:
https://bibliotekanauki.pl/articles/41023.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Cylindrocarpon destructans
Fraxinus excelsior
young tree
decay
Cryptosporiopsis
thin root
Fusarium oxysporum
fungi
Alternaria alternata
Fusarium solani
root
mycobiota
symptom
pathogenicity
tree
Chaetomium globosum
certain fungi
Opis:
The aims of the study were to identify the fungi associated with the decay of thin roots (1-5 mm) of 1, 3 and 15-year-old Fraxinus excelsior plants and to estimate the pathogenicity of certain fungi. In total, 400 fungal isolations were performed from which 334 cultures were obtained. Altogether, 26 species of fungi were identified. The following species were most frequently obtained, independently of plant age and origin: Alternaria alternata, Chaetomium globosum, Cryptosporiopsis sp., Fusarium oxysporum, F. solani and Cylindrocarpon destructans. The last three of these were then used in an inoculation test. F. oxysporum caused the death of over 80% of 2-month-old seedlings grown in boxes containing perlite and kept in a growth chamber.
Źródło:
Dendrobiology; 2002, 48
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytochemicals, nutraceuticals and antinutritional factors assessment of young leaves of Colocasia esculenta (L) Schott
Autorzy:
Eneh, Grace D. O.
Okon, Okon G.
Imabong, Fidelis E.
Mfoniso, Ekanem J.
Olajumoke, Ilesanmi O.
Powiązania:
https://bibliotekanauki.pl/articles/1109349.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antinutrients
Colocasia esculenta
minerals
oxalates
phytates
phytochemicals
proximate
Opis:
Phytochemicals, proximate, minerals and anti-nutrient compositions of young cocoyam (Colocasia esculenta) leaves were determined using standard methods. Qualitative and quantitative analyses for phytochemicals confirmed the presence of bioactive constituents such as alkaloids, flavonoids and saponins in appreciable amounts, while terpenes, cardiac glycocides and tannins were only present in trace concentrations. Mineral analysis revealed that K recorded the highest content - with 214.00 ± 2.11 mg/100g, followed by Ca - 157.10 ± 1.47 mg/100g, Mg - 63.00 ± 0.58 mg/100g, P - 32.00 ± 0.61 mg/100g, while Fe had the lowest value - 0.10 ± 0.14 mg/100g. Proximate composition analysis of C. esculenta leaves indicated that CHO, protein and crude fibre were present in high quantities (35.22, 17.10 and 16.41 % respectively), while fat was at the lowest content (8.82%). Anti-nutritional factor analysis of young leaves of C. esculenta indicated that phytates was present in huge quantity - 11.03 ± 0.12mg/g, followed by oxalates - 7.62 ± 0.14 mg/g, while tannins recorded the lowest anti-nutritional contents - 0.12 ± 0.06 mg/g. This study has also revealed that the young leaves of C. esculenta contain appreciable levels of bioactive components (phytochemicals such as as alkaloids, flavonoids and saponins; minerals K, Ca, Mg, P and Fe) and appreciable amounts of CHO, protein and crude fibre. The results of anti-nutrients analysis showed high contents of phytate and oxalate. The last is probably responsible for the itching effect and also interferes with the utilization of essential nutrients. Thus, young leaves of C. esculenta provide appreciable quantities of nutrients and thus can rival other conventional vegetables normally consumed in Nigeria.
Źródło:
World News of Natural Sciences; 2018, 20; 12-22
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of increased nitrogen depositions and drought stress on the development of young Norway spruce Picea abies (L.) Karst. stands
Autorzy:
Palatova, E
Powiązania:
https://bibliotekanauki.pl/articles/41235.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
forest tree species
plant development
Norway spruce
Picea abies
young tree
drought stress
nitrogen deposition
tree stand
biomass
fine root
functionality
mycorrhiza
Opis:
The effects of drought stress, stress by increased nitrogen depositions and the combined effect of the two stress factors on the growth of Norway spruce Picea abies (L.) Karst. were studied in two stands. The drought stress was induced by reducing atmospheric precipitations by 60% and the increased nitrogen depositions were simulated by repeated applications of ammonium sulphate at a rate corresponding to 100 kg N ha–1 year–1. All stress factors under study affected the height increment of the above-ground part, the length and colour of needles, and the biomass, vertical distribution, functionality and mycorrhizal infection of fine roots. The root system responded to the simulated stresses right from the the very first year of their action, exhibiting a greater damage than the above-ground part of the plant. Drought acted as a stress factor stronger than the nitrogen depositions themselves. The strongest impact was recorded in the simultaneous influence of the stress factors.
Źródło:
Dendrobiology; 2004, 51 Supplement
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie jeżyn (Rubus L.) w młodych uprawach leśnych na Płaskowyżu Kolbuszowskim
The occurrence of brambles (Rubus L.) in young forest plantations on the Kolbuszowa Plateau
Autorzy:
Wolanin, M.M.
Wolanin, M.N.
Oklejewicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1292603.pdf
Data publikacji:
2017
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Plaskowyz Kolbuszowski
uprawy lesne
krzewy
jezyna
Rubus
jezyna gruczolowata
Rubus hirtus
jezyna sloneczna
Rubus apricus
jezyna Bellardiego
Rubus pedemontanus
jezyna faldowana
Rubus plicatus
jezyna ostrega
Rubus gracilis
jezyna wyniosla
Rubus ambrosius
jezyna gliwicka
Rubus glivicensis
jezyna bukietowa
Rubus grabowskii
malina
Rubus idaeus
jezyna wzniesiona
Rubus nessensis
jezyna orzesiona
Rubus camptostachys
wystepowanie
genus Rubus
forests
south-eastern Poland
Opis:
In the Kolbuszowa Plateau forest areas, aggregations of brambles were observed most often in young forest plantations and forest clear cuts. In the 20 plantations that we examined, 11 bramble species were found. The most common bramble species in young forest plantations were Rubus plicatus, R. nessensis, R. hirtus, R. idaeus and more rarely R. gracilis, R. ambrosius and R. apricus. The largest bramble aggregations occurred in plantations located in mixed pine-oak forests, subcontinental lime-oakhornbeam forests and drained black alder forests. In young forest plantations the Rubus species were accompanied by species characteristic for the Vaccinio-Piceetea, Querco-Fagetea, Epilobietea angustifolii, Molinio-Arrhenatheretea and Nardo-Callunetea associations. There are three groups of bramble species which occur in young forest plantations: I – species with thin, prostrate and rooting stems (R. hirtus, R. apricus, R. pedemontanus), the negative impact of which on tree seedlings could have been very significant if the bramble specimens or diaspores had been present at the moment of tree planting; II – species with strong, poorly branched and arched stems (R. plicatus, R. gracilis, R. ambrosius, R. glivicensis), which negative influence on tree seedlings depends on the capability of the species to produce a big, dense bush in a short period of time thereby increasing shade; III – species with erect and relatively sparsely growing stems (R. idaeus), which are not a threat for the young forest plantations. Species with intermediate features (e.g. R. nessensis) may have a negative impact on young plantations generating a large, dense aggregation, however in most cases their populations only grow sparsely and do not hinder the growth of tree seedlings.
Źródło:
Leśne Prace Badawcze; 2017, 78, 2
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ przerzedzenia okapu górnego na rozwój podrostów sosny zwyczajnej (Pinus sylvestris L.) w pogradacyjnych drzewostanach w Lasach Pilskich
Response of Scots pine [Pinus sylvestris L.] young-growth stands to an overstorey canopy in the postoutbreak stands in Pila Forests
Autorzy:
Andrzejczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/1016341.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
stopien przerzedzenia okapu gornego
rozwoj roslin
odnowienia lasu
hodowla lasu
podrost
sosna zwyczajna
lesnictwo
odnowienia naturalne
odnowienia podokapowe
Pinus sylvestris
drzewa lesne
scots pine
pinus sylvestris l.
natural regeneration
undercanopy young−growth stands
postoutbreak
stands
poland
Opis:
In the paper the density, height, diameter, slenderness and vitality of the 17 year−old pine young−growth stands depending on the basal area of the shelterwood (four thinning variants: G1−G4). The studies were carried out in eleven 70−90 year−old pine stands heavily damaged in the 80s of the past century by the nun moth (Lymantria monacha L.). With the development of the overstorey the growth, the vitality and the stability of young stands declined. In addition, a decrease in the survival of the young−growth stands under the dense canopy (variant G4) was recorded. A long−term maintenance of young stands under the shelter of the canopy in the areas of low annual precipitation (below 600 mm) requires the reduction of the dbh basal area to the level of at least 15 m3/ha before attaining the age of 15 years.
Źródło:
Sylwan; 2007, 151, 01; 20-29
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of cultivar on the nutritional status of the young apricot trees (Prunus armeniaca L.)
Wpływ odmiany na poziom odżywienia młodych drzew moreli (Prunus armeniaca L.)
Autorzy:
Bošković-Rakočević, L.
Milošević, T
Milovojević, J.
Paunović, G.
Powiązania:
https://bibliotekanauki.pl/articles/11542225.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Opis:
Mineral nutrition of apricot is very specific and depends on different factors such as soil fertility, soil pH, weather conditions, cultivars, rootstocks, fertilizers, age of trees etc. For these reasons, during 2008 and 2009 we evaluate nutrient status of five apricot cultivars (Vera, Aleksandar, Biljana, Harcot, Roxana) at 120 days after full bloom (DAFB) grown on acidic soil in the region of ýaþak (Western Serbia). The results showed no statistically significant variations in the N, K and Ca content of apricot leaves among cultivars, as opposed to significant differences in the content of P, Mg, Fe, Mn, Cu, Zn and B. The ȈDOP index revealed that the average content of all macro- and micronutrients was below the optimum, except that of P in both years and that of Mn and Cu in the first year of the study. The insufficient nutrient supply of the test apricot cultivars requires adjustment of fertiliser types and application rates to this soil type according to foliar analysis.
Odżywianie mineralne moreli jest bardzo specyficzne i zależy od różnych czynników, takich jak: żyzność gleby, pH gleby, warunki pogodowe, odmiany, kłącza, nawozy, wiek drzew, itp. Z tych powodów, w latach 2008 i 2009 oceniamy poziom odżywienia pięciu odmian moreli (Vera, Aleksandar, Biljana, Harcot, Roxana) w 120 dni po pełni kwitnienia (DAFB), hodowanych na glebie kwaśnej w regionie ýaþak (Serbia Zachodnia). Wyniki nie wykazywały statystycznie istotnych odchyleń w zawartości N, K i Ca w liściach moreli różnych odmian, w przeciwieństwie do znaczących różnic w zawartości P, Mg, Fe, Mn, Cu, Zn i B. Wskaźnik ȈDOP wykazał, że średnia zawartość wszystkich makro- i mikroskładników odżywczych była poniżej optymalnej, oprócz P w obu latach oraz Mn i Cu w pierwszym roku badań. Niedostateczne zaopatrzenie w składniki odżywcze testowych odmian moreli wymaga dostosowania typów nawozów i zastosowanych dawek do typu gleby, zgodnie z analizą liści.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2012, 11, 1; 227-237
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photosynthetic performance of young maize (Zea mays L.) plants exposed to chilling stress can be improved by the application of protein hydrolysates
Wpływ hydrolizatów białkowych na wydajność fotosyntetyczną młodych roślin kukurydzy (Zea mays L.) poddanych stresowi chłodu
Autorzy:
Cholakova-Bimbalova, R.
Petrov, V.
Vassilev, A.
Powiązania:
https://bibliotekanauki.pl/articles/27199.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
Biostimulants offer a novel approach for the regulation of crucial physiological processes in plants. Recently, it has been observed that the application of biostimulants on both seeds and plants may ameliorate to some extent the negative effects of abiotic stresses such as drought, heat, salinity, and others. In the climate conditions of Bulgaria, the early developmental stages of warm climate crops, like maize, often occur under suboptimal temperatures. Although the mitigation of abiotic stress is perhaps the most frequently cited benefit of biostimulant formulations, little is known about their influence on chilling-stressed plants. The aim of our study was to evaluate the effects of a biostimulant from the group of protein hydrolysates on both the growth and the photosynthetic performance of chilling-exposed young maize plants grown in controlled environment. Here, we report that application of a protein hydrolysate increased the performance of chilled maize plants, as demonstrated by leaf gas exchange, photosynthetic pigment content, and chlorophyll fluorescence, but did not affect their growth. Nevertheless, based on the better preserved photosynthetic performance of the biostimulant-treated maize plants exposed to chilling, we assume that under subsequent favorable conditions their growth would recover more quickly as compared to the untreated ones.
Zastosowanie biostymulantów jest nowatorskim sposobem regulacji procesów fizjologicznych w roślinach. W ostatnich latach dowiedziono również, że ich aplikacja, zarówno na nasiona jak i części wegetatywne może w pewnym zakresie niwelować negatywne skutki stresów abiotycznych, między innymi suszy, zasolenia czy zbyt wysokiej temperatury. W warunkach klimatycznych Bułgarii wczesne fazy rozwoju roślin uprawnych pochodzących z cieplejszych stref klimatycznych, na przykład kukurydzy, odbywają się w okresach panowania temperatur suboptymalnych. Mimo, że łagodzenie negatywnych skutków stresu jest jednym z najczęściej podawanych korzystnych efektów działania biostymulantów, wiedza na temat ich wpływu na rośliny poddane stresowi chłodu jest wciąż niewystarczająca. Celem badań była ocena działania biostymulantów z grupy hydroli- zatów białkowych na wzrost i przebieg procesu fotosyntezy kukurydzy uprawianej w warunkach obniżonej temperatury. Aplikacja hydrolizatów białkowych miała pozytywny wpływ na wymianę gazową, zawartość barwników fotosyntetycznych i sprawność aparatu fotosyntetycznego mierzoną parametrami fluorescencji chlorofilu a, ale nie wpłynęła na wzrost roślin. Na podstawie uzyska -nych wyników można przypuszczać, że ze względu na sprawniejszy przebieg procesu fotosyntezy, rośliny kukurydzy poddane działaniu zbyt niskiej temperatury we wczesnych etapach rozwoju i potraktowane biostymulantami będą rosły lepiej po ustąpieniu suboptymalnych temperatur w porównaniu z roślinami nie poddanymi działaniu biostymulantów.
Źródło:
Acta Agrobotanica; 2019, 72, 2
0065-0951
2300-357X
Pojawia się w:
Acta Agrobotanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena liczebności pędraków Melolonthinae w pułapkach trocinowych w uprawach sosny zwyczajnej (Pinus sylvestris L.)
Assessing the number of Melolonthinae larvae in the sawdust traps in young Scots pine (Pinus sylvestris L.) plantations
Autorzy:
Szmidla, H.
Tkaczyk, M.
Małecka, M.
Sierota, Z.
Powiązania:
https://bibliotekanauki.pl/articles/986677.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
ochrona lasu
uprawy lesne
sosna zwyczajna
Pinus sylvestris
pulapki trocinowe
szkodniki roslin
Melolonthinae
pedraki
liczebnosc
melolontha spp.
young forest plantations
root−pest monitoring
Opis:
Root−feeding insects are an increasingly studied group of herbivores, whose impact on plant productivity and are some of the most damaging forest pests in Europe. Due to the mass feeding on the roots of seedlings and older trees in young plantation and stands, Melolonthinae larvae are classified as pests, which are the most dangerous on the land dedicated to afforestation. The research was located in the Wyszków Forest District (52°43'15' N; 21°39'03' E) on the mixed coniferous and mixed deciduous forest habitats. This study evaluated sawdust traps as the method for assessing abundance of Melolonthinae larvae in Scots pine plantations established artificially from open nursery, container production, and from natural regeneration. In spring 2015 i) ‘small sawdust pits’ in rows between seedlings, and ii) pits without soil in adjacent inter−rows as control were prepared. In spring and autumn 2016, and in spring 2017 sawdust and soil from both variants of pits were sieved and Melolonthinae larvae were counted and compared. The obtained results were analyzed in two ways. The first analysis compared the occurrence of grubs in small pits with or without sawdust, while the other one analysed influence of the time of making small pits, independently for the variant with or without sawdust. The final stage was to compare the number of Melolonthinae larvae in small pits between the origin of the seedlings. We found a greater number of grubs in spring assessment than in autumn. Both kinds of small pits showed higher number of Melolonthinae larvae when compared to traditional method of ‘great pits’. The number of Melolonthinae larvae was significantly higher on the plots with container seedlings than the others. The conceptual assumptions of this alternative and environmentally safe method of ‘sawdust traps’ seems to be optimistic.
Źródło:
Sylwan; 2018, 162, 07; 590-597
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 108

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies