| 摘要 |
FIELD: agriculture.SUBSTANCE: polyacrylamide hydrogel polymer powder is embedded into the soil, modified by ionising gamma radiation to the absorbed dose of 3.0-7.0 kGy, followed by stabilisation by water and drying at a temperature of 60-70°C, at that the dispersed particles of the resulting polymer hydrogel, having indicators viscoelastic properties: modulus of elasticity 20.0-23.07 Pa, dynamic viscosity 3000-3754 Pa at a shear rate of 2.0-2.6-10s, at water absorption of the particles up to 1000 ml per 1 g of the polymer, are embedded into the soil in an amount of 50-300 kg per 1 hectare. In the powder composition of the polymer hydrogel the micronutrients are additionally added either in stabilisation by treatment with an aqueous solution of the micro-fertilisers or by sputtering of powder micro-fertilisers to stabilised particles of the polymer.EFFECT: increase in water capacity of the polymer hydrogel, increase in water-retaining properties, improved air exchange, increase in resistance to water of soil aggregates in the decrease in the amount of polymer hydrogel per hectare of soil, increase in crop yield.2 cl, 1 dwg, 5 ex |
