Effect of plowing by-product predecessor and mineral fertelizers doses on the barley yield on sod-podzolic sandy loam soil
2015
Seraya,T.M. | Bogatyreva,E.N. | Kirdun,T.M. | Biryukova,O.M. | Belyavskaya,Yu.A. | Torchilo,M.M.
In a course of the research there was studied the effect of plowing by-product predecessor and mineral fertelizers doses on the barley (Hordeum vulgare) yield on sod-podzolic sandy loam soil. The research was realized in the conditions of the Republic of Belarus in 2010-2011 in two successive opening fields in the State Enterprise ‘Experimental Base named after Suvorov in ‘Uzda district, Minsk region on sod-podzolic sandy loam, developing on loose sandy loam, underlain at a depth of 80 cm moraine loam soil. Preceded crop was barley. As a result of research it was revealed that lowering doses of phosphate and potash fertilizers with regard to the content of phosphorus and potassium in the straw plowed predecessor had ensured the grain yield of barley at the level of full doses of mineral fertilizers by a lower cost for fertilizers on 51 USD/ha, or 26%. The use of a compensatory nitrogen dose on plant residues of the precursor in the form of urea provided an increase grain yield of barley on 15.4 c/ha in spring application and 3.4 kg/ha in autumn. In the variants with the NPK application under barley additional amounts of nitrogen on straw it was increased yields an average of 4.2 c/ha.
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