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Key Points of Soybean Chemical Control Technology and Detailed Usage Methods

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Chemical control cultivation is an emerging technology in agricultural production. When applied to soybean cultivation, chemical control can regulate plant growth and development, help increase flowers and preserve pods, and raise yields. Application of rare earth: rare earth is also called rare earth micro-fertilizer or rare earth nitrate, with the trade name Changle Yizhisu. It is a new type of rare earth element fertilizer first developed in China and a key promoted product; at the soybean seedling stage and initial flowering stage, spray once each with rare earth solutions at concentrations of 0.03%-0.04% and 0.08% respectively, which can increase grain protein content by 5.

Chemical control cultivation is an emerging technology in agricultural production. When applied to soybean cultivation, chemical control can regulate plant growth and development, help increase flowers and preserve pods, and raise yields.

Application of rare earth: rare earth is also called rare earth micro-fertilizer or rare earth nitrate, with the trade name Changle Yizhisu. It is a new type of rare @#@258@#@ earth element fertilizer first developed in China and a key promoted product; at the soybean seedling stage and initial flowering stage, spray once each with rare earth solutions at concentrations of 0.03%-0.04% and 0.08% respectively, which can increase grain protein content by 5.9%, fat content by 8.5%, and yield by 15%-20%. Application of paclobutrazol: paclobutrazol is also called chlorobutrazol, code name pp333, and is a new type of plant growth regulator; when applied to soybean, it can dwarf the plant, thicken the stem, shorten the petiole, extend the functional period of leaves, help ventilation and light penetration and prevent lodging, and also control soybean mosaic virus, generally increasing yield by about 20%. Application method: from soybean branching to initial flowering stage, spray 25 kg of 250 ppm paclobutrazol solution per mu.

Application of sodium bisulfite: sodium bisulfite is a photorespiration inhibitor. When applied to soybean, it can effectively reduce plant respiration intensity, decrease dry matter consumption, and increase yield by an average of 10.5%. Application method: use 8 grams of sodium bisulfite per mu, dilute with 50 kg of water, and spray once each at the soybean initial flowering stage and full flowering stage.

Application of triiodobenzoic acid: 2,3,5-triiodobenzoic acid is a multi-effect plant hormone. When applied to soybean, it can inhibit apical dominance, promote axillary bud development, dwarf the plant, increase branching, thicken the stem, help ventilation and light penetration and prevent lodging, and promote increased yield.

According to experiments, at the soybean initial flowering stage and full flowering stage, spray once each with solutions at concentrations of 100 ppm and 200 ppm respectively, spraying 50 kg each time per mu, which can increase the number of flowers by 25%-40%, reduce the flower and pod abscission rate by 7%, increase the number of pods per plant by 5-12.6, raise 100-seed weight by 0.5 grams, advance maturity by 5-7 days, and increase yield by 5%-23%.

Application of Zengchanling: Zengchanling is also called 4-iodophenoxyacetic acid and is a plant growth stimulant; from the soybean full flowering stage to pod setting stage, spray with 20-30 ppm Zengchanling solution once every 7-10 days, for a total of 2 sprays, spraying 50 kg-75 kg each time per mu, which can increase the number of flowers per plant by 20%, reduce the flower and pod abscission rate by 10%, and increase yield by 3%-15%.

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