Reclamative efficiency of defecate on organic component of typical black earth

Abstract

Objective. To study the effect of meliorant on changes in the content of total humus and its fractions in a weakly acid chernozem typical. Methods. Physico-chemical and agrochemical analysis of soil and plant samples and phenological observations on growth and development of plants have been carried out. Results The use of a defecate in the same norm of CaCO3, calculated on the basis of the hydrolytic acidity of the soil (4.9 t / ha in physical weight), combined with mineral fertilizers (N90P60K90) in the autumn under discarding of the stubble with subsequent stacking, increased the total humus content to 3.5% , Total carbon - up to 2.02% for the content of humic acids 0.49% of the weight of soil for the indicators in the control variants of the experiment: 3.3%; 1.91; 0.49% respectively. Conclusions The introduction of defecet obtained by the new technology contributes to the restoration of the processes of melioration and humification of organic matter in a weakly acid chernozem typical.