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Wyświetlanie 1-3 z 3
Tytuł:
Yield and mineral composition of seeds of leguminous plants and grain of spring wheat as well as their residual effect on the yield and chemical composition of winter oilseed rape seeds
Autorzy:
Fordonski, G.
Pszczolkowska, A.
Krzebietke, S.
Olszewski, J.
Okorski, A.
Powiązania:
https://bibliotekanauki.pl/articles/961600.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
yield
mineral composition
seed
leguminous plant
grain
wheat
spring wheat
residual effect
chemical composition
winter rapeseed
oilseed rape
Opis:
A controlled field experiment was carried out in 2011-2014 in order to determine yields and chemical composition of selected genotypes of leguminous plants and spring wheat, as well as their value as a preceding crop (crop volume, mineral composition of seeds) for winter oilseed rape grown in Northern Poland. Chemical analysis of the content of macronutrients and micronutrients in seeds and grain was conducted using standard methods after mineralisation in H2SO4 with H2O2 as an oxidant (macronutrients), or in a mixture of the acids HNO3+HCl+HClO4 (micronutrients). It was proven that among the examined species and seasonal types of legumes, the highest total seed and protein yield volume was obtained from both field bean forms, traditional and determinate one. The lowest yield was achieved from blue lupine. The yield of winter wheat grain oscillated around 5.6 t ha-1. Blue lupine seeds were characterised by the highest total protein content. Seeds of both field bean forms were distinguished by the highest content of potassium, phosphorus, copper and zinc, while blue lupine seeds had the highest content of calcium, magnesium and manganese. The research showed a clear tendency towards a higher winter oilseed rape yield in a field after determinate field bean and seed pea. Spring wheat proved to be the worst previous crop for winter oilseed rape. The tendency for greater accumulation of nitrogen, phosphorus, calcium, copper, iron and zinc in winter oilseed rape seeds was observed in a field after determinate field bean. The lowest content of macronutrients and micronutrients was characteristic for seeds of winter oilseed rape grown after spring wheat. Winter oilseed rape seeds in a field after determinate field bean and blue lupine were rich in manganese. The research proved a positive relationship between the total nitrogen content in soil after harvest of pre-crop plants and winter oilseed rape seeds yield (r = 0.864).
Źródło:
Journal of Elementology; 2015, 20, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The yield and chemical composition of winter oilseed rape seeds depending on different nitrogen fertilization rates and the preceding crop
Autorzy:
Fordoński, G.
Pszczółkowska, A.
Okorski, A.
Olszewski, J.
Załuski, D.
Gorzkowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/962852.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The aim of this study was to determine the influence of nitrogen fertilization and the preceding crop on the yield and chemical composition of winter oilseed rape. The yield of winter oilseed rape increased significantly in response to a fertilizer dose of 180 kg N ha-1. In our study, significant interactions were observed between the preceding crop and dose of nitrogen fertilizer. The optimal N fertilizer dose for winter oilseed rape grown after peas, narrow-leaved lupine and traditional (indeterminate) faba beans is 120 kg N ha-1. The recommended N fertilizer dose for winter oilseed rape is 60 kg N∙ha-1 after determinate faba beans and 180 kg N ha-1 after spring wheat. Winter oilseed rape was characterized by the highest seed yield when grown after determinate faba beans, and its yield was slightly lower after peas and narrow-leaved lupine. The lowest seed yield was noted when spring wheat was the preceding crop. The micronutrient content (Mn, Zn, Cu and Fe) of winter oilseed rape increased significantly in response to an increase in nitrogen fertilization doses. The seeds of winter oilseed rape were characterized by the highest phosphorus and magnesium content when grown after peas, the highest potassium content was achieved after determinate faba beans, and the highest calcium content occurrd in oilseed ape when grown after spring wheat. A linear regression analysis revealed a significant relationship between total nitrogen concentrations in the seeds of winter oilseed rape growth after spring wheat and nitrogen fertilization dose. An increase in fertilization levels enhanced nitrogen accumulation in seeds. A similar trend was noted when winter oilseed rape was grown after indeterminate faba beans and peas.
Źródło:
Journal of Elementology; 2016, 21, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Incidence of seed-borne fungi on Lupinus mutabilis depending on a plant morphotype, sowing date and plant density
Autorzy:
Pszczolkowska, A.
Okorski, A.
Kotecki, A.
Gas, M.
Kulik, T.
Reczek, A.
Powiązania:
https://bibliotekanauki.pl/articles/961386.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
seed-borne fungi
Lupinus mutabilis
plant
seed health
seed yield
Andean lupin
macronutrient
morphotype
sowing date
plant density
Colletotrichum
identification
Opis:
Seeds of the Andean lupine are characterised by high nutritional value, and the plant could become an important crop in the production of food and forage. This legume continues to attract growing interest around the world. A field experiment was carried out in in Lower Silesia, Poland, in 2011-2012. Two Andean lupine morphotypes (indeterminate and determinate) were analysed. Andean lupine was grown in treatments characterised by different sowing dates and plant density per m2. Seed yield, macronutrient content, protein content and health were evaluated at harvest. Seed yield was determined by the interaction of all experimental factors. The indeterminate form produced a significantly higher yield than the determinate form, regardless of the sowing date. The factors had little influence on the mineral content of seeds and total protein content. Andean lupine seeds were colonised mostly by saprotrophic fungi of the genera Alternaria, Cladosporium, Epicoccum and Rhizopus and pathogenic fungi of the genera Botrytis, Colletotrichum and Fusarium. Delayed sowing contributed to seed colonisation by fungi of the genus Colletotrichum. The determinate form was more susceptible to infection than the indeterminate form. Molecular analysis showed that the Colletotrichum isolates found in the study belong to the Colletotrichum acutatum species complex. The pathogen causing lupine anthracnose, isolated from the seeds of Andean lupine in the present study, was identified as Colletotrichum lupini (within C. acutatum complex) in a molecular analysis, and its DNA sequence was compared with those of the isolates deposited in the GenBank.
Źródło:
Journal of Elementology; 2016, 21, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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