| abstract |
The invention discloses a modified zeolite-based soil amendment for saline-alkali land. Raw materials of the soil amendment comprise, by weight, 1000-1500 parts of modified zeolite, 1000-1300 parts of polyacrylamide, 1000-1500 parts of chitosan, 800-1200 parts of powdered rock phosphate, 1200-1800 parts of nano-calcium carbonate, 35-50 parts of peat, 10-20 parts of calcium humate, 50-80 parts of magnesium sulfate, 60-90 parts of a compound enzyme preparation and 30-60 parts of ferment bacteria. By the use of the soil amendment for saline-alkali land with modified zeolite as a carrier, nutrient release speed of a fertilizer in soil can be effectively reduced, fertilizer efficiency period is long, and pollution to the environment and water body is reduced. In addition, the product has good functions of holding moisture, loosening soil and preventing soil hardening, etc. |