Patent ID: 11926572
Assignee: LIAONING ACADEMY OF AGRICULTURAL SCIENCES
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 0:
1. A cultivation method for maintaining soil organic carbon (SOC) balance utilizing a fertilizer for intercropping maize and peanuts, the fertilizer comprising, in parts by weight: 40-50 parts of coated urea, 20-30 parts of double superphosphate, 15-20 parts of ammonium sulfate, 3-5 parts of fermented soybean meal, 20-30 parts of bentonite, 1-1.5 parts of sodium molybdate, 5-8 parts of borax, 5-10 parts of humic acid, 5-10 parts of ammonium dihydrogen phosphate, 3-5 parts of plant ash, and 1-3 parts of zinc sulfate heptahydrate;
wherein the coated urea is urea coated with fly ask polyvinyl alcohol, and dicyandiamide;
wherein the fly ash and the polyvinyl alcohol are present in an amount of 20% of the total weight of the coated urea, wherein the fly ash and the polyvinyl alcohol are present in a mass ratio of 3:1; and the dicyandiamide is present in an amount of 3% of the total weight of the coated urea, wherein the method comprises:
S1, plot selection and plot preparation: selecting a plot with flat terrain, fertile soil, loose soil and neutral to acid soil, tilling the plot, then ridging to adjust the soil in terms of soil water content;
S2, fertilizing: dividing the plot into planting areas of maize and planting areas of peanuts, and applying the special fertilizer for intercropping maize and peanuts;
S3, sowing: planting by intercropping four rows of peanuts and two rows of maize;
S4, field management: spraying a growth regulator once during a pod setting period of the peanuts; spraying the growth regulator once during a 4-5 leaf spreading period of the maize; and
S5, rotation: switching the planting areas in a second year after harvesting the maize and the peanuts in a first year, planting peanuts in the planting areas of the maize of the first year and planting maize in the planting areas of the peanuts of the first year.