Chemical control measures for flowering stage of growing peanut

Yancheng Ling can promote the transport of nutrients in plants, accelerate cell differentiation, prevent shedding, protect flowers and fruits, promote filling and early ripening. When peanuts were sprayed with 10% 30 × 10-6 solution on the leaf surface twice during flowering, the blighted fruit rate was reduced by 10% 20%, and the yield was increased by 10% 15% per 667 square meters, especially in barren areas.

Bijiu is a synthetic plant growth retarder, which promotes slow growth of stems and leaves, full pods, high fullness rate and rice yield, and generally increases production by about 10%. In the plots with high fertility, too much nitrogen fertilizer and excessive growth, the effect was better when the concentration of 1000-1500 × 10-6 was sprayed from flowering to podding. In thin land, peanuts with poor growth and development should not be sprayed, otherwise it will lead to a reduction in yield.

Daizhuangsu is generally used in peanut plots with high fertility, overgrowth, overgrowth and lodging, and sprayed with 3000mm 5000 × 10-6 liquid at full flowering stage, the yield can be increased by 5.8% and 18.8%.

2mai 4murD is mainly used for seed soaking and spraying. The effect of spray is better from the cluster stage to the full flowering stage. The yield can be increased by 5% to 9.3% when 50 × 70 × 10-6 is used in the group tree stage and 30 × 10-6 in the full flowering stage, which can increase the yield by about 10%.

Trichlorobenzoic acid is a new regulator. After spraying, the plant height, leaf thickness, chlorophyll content and photosynthetic efficiency of peanut are increased, so the fruit number per plant, full fruit rate, fruit weight per plant, 100-fruit weight and 100-kernel weight are increased, and the double-kernel fruit rate is high. Spraying 100 ~ 300 × 10 ~ 6 flower liquid once at the beginning of flowering and fruit needle ligation period can increase the yield by about 20%.