Накопление азота в биомассе озимой пшеницы при разных уровнях азотного питания
2009
Lastochkina, S.I., Belarus State Academy of Agriculture, Gorki (Belarus)
The results of a three-year research showed that accumulation of nitrogen in grain, straw and after-harvest residue of winter wheat (Triticum Aestivum) of Kapylyanka variety depended on both the level of early-spring store of mineral nitrogen in the 0-60 cm layer of soil and additional nitrogenous nutrition, applied in the phase of bushing end - beginning of stalking and in the phase of stalking - beginning of ear-formation. The highest content of nitrogen in grain was provided by cultivation of winter wheat with early spring store of mineral nitrogen in the 0-60 cm layer of soil at the level of 200 kg/ha with two additional nitrogen feedings. For underground part the most optimal level of this indicator was the level of nitrogen feeding of 180 kg/ha with two additional feedings by nitrogen fertilizer.
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