METHOD OF DECOMPOSITION OF PLANT RESIDUES Russian patent published in 2013 - IPC A01C21/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture and can be used in agriculture in the use of straw and crop residues as a source of mineral nutrition of crops. The method includes grinding, spreading of straw and crop residues when harvesting. Application of nitrogen. At that, the straw cutting is additionally split longitudinally. The actual and estimated nitrogen content in the straw is defined. The estimated nitrogen content is defined by the ratio of carbon and nitrogen. The need for compensatory nitrogen is judged according to the difference between the estimated and actual values of nitrogen. The dose of compensatory nitrogen is calculated from the formula: D_cN=N_c×A_s, where D_cN is dose of compensatory nitrogen for the predetermined amount of straw, kg, rate of application; N_c is the need for compensatory nitrogen per 1 t of straw according to the ratio of carbon and nitrogen in it, kg, rate of application, A_s is the amount of straw, t.

EFFECT: amount of nitrogen accumulated as a result of the use of the proposed method of crop residues affects the enrichment of topsoil with organic matter and, therefore, increases crop yield.

5 tbl, 2 ex