US 11,926,572 B2
Special fertilizer for intercropping maize and peanuts and cultivation method for maintaining soil organic carbon balance
Zhanxiang Sun, Shenyang (CN); Liangshan Feng, Shenyang (CN); Ning Yang, Shenyang (CN); Fengyan Zhao, Shenyang (CN); Yue Men, Shenyang (CN); Chen Feng, Shenyang (CN); Yilai Lou, Beijing (CN); Yongyong Zhang, Shenyang (CN); Ping Wang, Shenyang (CN); and Xianglong Sun, Shenyang (CN)
Assigned to LIAONING ACADEMY OF AGRICULTURAL SCIENCES, Shenyang (CN)
Filed by Liaoning Academy of Agricultural Sciences, Shenyang (CN)
Filed on Nov. 4, 2022, as Appl. No. 17/981,026.
Claims priority of application No. 202111457974.9 (CN), filed on Dec. 1, 2021.
Prior Publication US 2023/0167037 A1, Jun. 1, 2023
Int. Cl. C05G 1/00 (2006.01); A01C 21/00 (2006.01); C05B 1/02 (2006.01); C05B 7/00 (2006.01); C05C 3/00 (2006.01); C05C 9/00 (2006.01); C05D 9/02 (2006.01); C05F 5/00 (2006.01); C05F 11/02 (2006.01); C05G 5/30 (2020.01); C05G 5/40 (2020.01)
CPC C05G 1/00 (2013.01) [A01C 21/005 (2013.01); C05B 1/02 (2013.01); C05B 7/00 (2013.01); C05C 3/005 (2013.01); C05C 9/005 (2013.01); C05D 9/02 (2013.01); C05F 5/002 (2013.01); C05F 11/02 (2013.01); C05G 5/37 (2020.02); C05G 5/40 (2020.02)] 6 Claims
 
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.