METHOD FOR DIAGNOSIS AND REGULATION OF PLANT PHOSPHOROUS FEEDING Russian patent published in 2005 - IPC

FIELD: agriculture, in particular, method used for determining of phosphorous fertilizer demands in the course of growing of cereals and leguminous crops.

SUBSTANCE: method involves providing annual agrochemical investigation of soil arable layer; determining labile phosphorus content and availability of phosphorus to plant for forming of planned yields by providing chemical analyses for capability of soil to mobilization of labile phosphorus by using potassium phosphate solution, as well as by calculating doses of used phosphorous fertilizer from respective formula, with annual agrochemical investigation being provided in arable layer at 0-20 cm depth; additionally determining content of labile phosphorus delivered into soil in the course of mineralization of soil organic substance and plant remains of preceding crop.

EFFECT: reduced labor consumption, increased precision in diagnosis and regulation of phosphorous feeding of plants.

2 cl, 1 dwg, 2 tbl, 1 ex