Chemical control technology of growing soybean

Using chemical technology to control cultivation is a new technology in agricultural production. The chemical control cultivation of soybean can regulate the growth and development of the plant, increase the flower, protect the pod and increase the yield.

The application of rare earth elements, also known as rare earth micro-fertilizer or rare earth nitrate, is a new type of rare earth element fertilizer pioneered and popularized in China. In the seedling stage and the first flowering stage of soybean, spraying rare earth solution with concentrations of 0.03%, 0.04% and 0.08%, respectively, can increase grain protein content by 5.9%, fat content by 8.5%, and increase yield by 15%. 20%. The application of paclobutrazol, also known as PP333, is a new type of plant growth regulator; when applied to soybean, it can dwarf the plant, thicken the stem, shorten the petiole, prolong the functional period of leaves, help ventilation and light transmission and prevent lodging, and can also treat soybean mosaic disease, generally increasing yield by about 20%. Application method: 25 kg of 250PPM paclobutrazol solution was sprayed per mu from branch to early flowering stage of soybean.

The application of sodium bisulfite is a photorespiration inhibitor, which can effectively reduce the respiration intensity of the plant, reduce the dry matter consumption, and increase the yield by 10.5% on average. Application method: use 8 grams of sodium bisulfite per mu, 50 kilograms of water, spray once in the early flowering stage and full flowering stage of soybean.

The application of triiodobenzoic acid 2, 3, 5, 5-triiodobenzoic acid is a multi-potent plant hormone, which can inhibit apical dominance, promote axillary bud development, dwarf plant, increase branches and stout stem, which is beneficial to ventilation and light transmission, lodging prevention and yield increase.

According to the experiment, in the early flowering stage and full flowering stage of soybean, the solution with the concentration of 100PPm and 200PPm was sprayed once respectively, each time spraying 50 kg per mu, the number of flowers and pods increased by 25% 40%, the shedding rate of flowers and pods decreased by 7%, the number of pods per plant increased by 5-12.6, the weight of 100 seeds increased by 0.5g, matured 5-7 days, and the yield increased by 5%.

The application of Yancheng Lingchengling, also known as 4-iodophenoxyacetic acid, is a plant growth stimulant; during the period from flowering to podding of soybean, 20-30PPM solution was sprayed once every 7-10 days, a total of 50 kg-75 kg per mu was sprayed, the number of flowers per plant increased by 20%, the shedding rate of flowers and pods decreased by 10%, and the yield increased by 3%. 15%.