Spring rapeseed quality in dependence on fertilizer system | Качество семян ярового рапса в зависимости от систем удобрения
2012
Lapa, V.V. | Ivakhnenko, N.N. | Lopukh, M.S. | Kulesh, O.G. | Gracheva, A.A. | Shumak, S.M. | Lomonos, M.M., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
In course of the research there were studied quality indices of spring rapeseed growing on sod-podzolic sandy loam and loamy sand soils in dependence of fertilizer systems. The research was realized in the conditions of the Republic of Belarus in 2006-2012. As a result of realized research it was revealed that that mass of 1000 grains, protein and oil contents in rapeseed (Brassica napus) were not depended on soil fertility and texture. Application of different forms and doses of mineral fertilizers didn't affect the contents of glucosinolats and erucic acids. Their contents in rapeseeds were in diapason of 2% (1th class). At studying of doses and parities of mineral fertilizers the minimum quantity of crude protein of 16.7% and its gathering of 97 kg/ha was characteristic for a variant without mineral and organic fertilizers on sod-podzolic sandy soil with the lowest agrochemical indicators (рНKCl – 5.25, Р205 - 73, К20 - 70 mg/kg of soil, humus – 2.10%). Unilateral application of nitric fertilizers (N60+30) led to decrease in mass of 1000 seeds on 0.2 g, oil content - on 2.9%, to increase in the content of crude protein - on 2.4%, gathering of crude protein - on 193 kg/ha.
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