Abstract
Rapeseed and rapeseed and millet mixtures are cultivated, the supply of chernozem with nitrate nitrogen is low and medium, the supply of ammonium nitrogen is high. The availability of mobile phosphorus is reduced by the end of the growing season. The availability of exchange potassium for these crops is very high.
Highlights
Biologization of crop rotations is important condition for the stable functioning of agrocenoses and increasing soil fertility [2,5]
The study of the nutritional elements dynamics in chernozems in the cultivation of rape and rape and millet mix is the goal of our study
In 2016, in binary crops of rapeseed and millet, the content of nitrate nitrogen decreases from June to August from 1.2 mg / 100 g to 0.6 mg / 100 g
Summary
Biologization of crop rotations is important condition for the stable functioning of agrocenoses and increasing soil fertility [2,5]. The mineral forms of nitrogen (ammonium and nitrate) are appearing in the soil solution when decomposing organic matter and plant residues. Nitrate form of nitrogen is most accessible to plants [3].
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