[Influence of mineral fertilizers on seed capacity and productivity of the east galega]
2008
Zenkova, N.N., Vitebsk State Academy of Veterinary Medicine (Belarus)
It is established that on the sod - podzol loamy soils of the Vitebsk region the east galega at an optimal dose of the fertilizer P60K90 (most profitable) forms the seed capacity of 459 – 460 kg/ha. Besides, after the harvesting of crops there is time to form 174 – 184 c/ha of green mass of the aftermath in the conditions of providing a fodder unit digested by protein 133 – 161. The increase in a dose of fertilizers up to Р90К120 increases expenses and reduces the size of the net profit and profitability of seeds production. Total calculation of economic indicators on seeds, straw and aftercrop has shown, that profitability east galega as a whole is on 14 - 44% above, than at use only on seeds. The analysis of elements of structure of crop has shown, that positive influence of fertilizers on seeds productivity is shown through strengthening of shoot forming, including generative stalks, growth of number of beans and quantity of seeds in a bean. On the average for three years at annual P30K60, P60K90 and P60K120 application the quantity of generative stalks on 1 square m of east galega was more than on the control, - on 16, 25 and 21% accordingly
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Эту запись предоставил National Academy of Sciences of Belarus