The influence of application of straw on parameters fertility of typical chernozem
Keywords:
straw, fertility restoration, humus, soil structure, maize, minimizing soilAbstract
A deficit of manure for conservation and restoration of soil fertility should apply straw or other crop by-products. We investigated the effect of different tillage and fertilization on typical chernozem fertility parameters. Established, that organic-mineral fertilizer system, which included the introduction of straw, green manure and mineral fertilizer provided increasing humus content and improve the parameters of its structural and physical state. Content humus in arable layer of typical chernozem on the variant of Straw 1.2 t/ha + N12 + green manure + N78P68K68 was highest under the reduced tillage and was 3.66%, slightly lower values marked by deep reduced tillage and lowest - for plowing.
Organic and mineral fertilization system along with minimization of tillage contributed to an increase of coefficient structuring. The highest yield of corn marked by deep tillage on the variant of Straw 1.2 t/ha + N12 + green manure + N78P68K68 -8,11 t/ha, slightly lower - in plowing (7.62 t/ha) and lowest (7,26) for reduced tillage.References
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