WINTER WHEAT YIELDS DEPENDING ON THE SYSTEM OF MAIN SOIL CULTIVATION AND FERTILIZING

The research results as to the influence of continuous application of the systems of main soil cultivation, mineral and manure-mineral fertilization on yielding and quality indices of winter wheat seeds have been presented. It has been stated, that the highest winter wheat yielding (5.56 t/h) was provided due to the manure-mineral fertilization (abandoning the previous culture straw and adding mineral fertilizers at the rate of N₃₀P₃₀K₃₀) and plough-board system of main soil cultivation. Alongside with mineral fertilization at the rate of N₆₀P₆₀K₆₀ the highest wheat yielding (5.56 t/h) was received under the application of flat-cutting system of main cultivation. It has been determined, that application of mineral fertilization by nitro-ammoniaphosphorus at the rate of N₆₀P₆₀K₆₀ to winter wheat in comparison with manure mineral fertilization abandoning previous culture straw and applying mineral fertilizers at the rate of N₃₀P₃₀K₃₀ turned to be economically inefficient. Higher qualitative indices of winter wheat seeds have been received applying mineral fertilization. Under the application of both types of fertilization, the qualitative indices dominated under plough-board cultivation and under the systems of higher yielding the seeds quality has improved