| 摘要 |
FIELD: agriculture.SUBSTANCE: invention relates to agriculture. Fertiliser-ameliorant includes natural zeolite-containing clay mineral with calcium carbonates CaCO, silica SiO, in presence of trace elements, wherein fertiliser-ameliorant used is Khvalynskiy clay of Caspian depression with content of clay minerals, including humus (1.5-2.5 %), organic carbon (0.5-1.0 %), CaCO(up to 10 %) SiO(up to 60 %), AlO(20-30 %), magnesium elements MgO, exchange cations Na, Ca, Mg, potassium isotopesK, with average value of relative swelling 0.46.EFFECT: invention allows to improve water-and-physical properties and soil structure, increases its biological activity and fertility.1 cl |
