SOIL IMPROVER AND SOIL-IMPROVING METHOD

摘要

PURPOSE:To improve the soil properties and the germination percentage and promote the growth of plant by adding a water-absorbing resin and a humic acid salt to soil. CONSTITUTION:Soil properties are improved by adding a water-absorbing resin and a humic acid salt (e.g. potassium humate and ammonium humate) to soil. The weight ratio of the water-absorbing resin to the humic acid salt is preferably 100:(1-200), more preferably 100:(5-50). The germination percentage and the initial growth of plant seed can be improved and moderate air-diffusibility, water-retainability and fertilizer-retainability can be imparted to the soil.