FERTILIZER MELIORANT NARA-2 Russian patent published in 1998 - IPC

FIELD: agriculture, plant science, and forestry. SUBSTANCE: fertilizer meliorant is mixture of peat and sapropel, zeolite tuff with particle size of 1.0-5.0 mm, lime meal and quitin or derivatives thereof or quitosan or derivatives thereof. Ration of components is as follows, wt.%: mixture of peat and sapropel, 55.0-84.5; zeolite tuff, 10-30; lime meal, 5.0-10.0; quitin or derivatives thereof or quitosan or derivatives thereof, 0.5-5.0. The claimed fertilizer meliorant has higher selective sorption activity to heavy metals and radionuclides and shows high modulating effect and favors improved fertility of soils. EFFECT: improved properties of the fertilizer meliorant. 1 ex, 2 tbl