Labile organic matter of alluvial gray-humus soil with different agrochemical backgrounds (Sakhalin Island). L.V. SAMUTENKO

Abstract

Labile organic matter of alluvial gray-humus soil with different agrochemical backgrounds (Sakhalin Island). L.V. SAMUTENKO (Sakhalin Research Institute of Agriculture, Yuzhno-Sakhalinsk).

The degree of influence of fertilizer systems on the dynamics of labile organic matter of alluvial gray-humus soil in a long-term stationary experiment is studied. It was found that the labile part occupies a predominant position in the organic matter (>60 %). The lack of mineral support (0NPK) caused the loss of labile and stable parts. The lime-mineral fertilizer system (3NPK + Ca) proved to be more effective in the accumulation of heterogeneous parts of organic matter.