How to regulate peanut flowering with chemical control? Practical measures explained in one article
Yield-increasing ling has the effect of promoting the movement of nutrients within the plant, accelerating cell differentiation, preventing shedding, preserving flowers and fruits, promoting grain filling and early ripening. During the peanut flowering period, spray the leaves 1~2 times with a 10~30×10-6 solution; the rate of blighted pods is reduced by 10%~20%, and per 667 sq m the yield increases by 10%~15%. Especially when used on poor barren land, the yield-increasing effect is better.
Bijiu is a synthetic plant growth retardant that slows stem and leaf growth, makes pods mature plump, and gives a high rate of plump pods and high shelling percentage, generally increasing yield by about 10%. In plots with high fertility, excessive nitrogen fertilizer, and signs of excessive vegetative growth, spraying at a concentration of 1000~1500×10-6 from full flowering to the middle pod-setting stage gives a better effect. Peanuts on thin land with poor growth and development are not suitable for spraying, otherwise it will lead to reduced yield.
Chlormequat is generally used in peanut plots with high fertility, excessive growth, and signs of excessive vegetative growth and lodging; spraying at full flowering with a 3000~5000×10-6 solution can increase yield by 5.8%~18.8%.
2,4-D is mainly used for seed soaking and spraying. Spraying from the rosette stage to full flowering gives a better effect. At the rosette stage, using 50~70×10-6 can increase yield by 5%~9.3%; at full flowering, using 30×10-6 increases yield by about 10%.
Trichlorobenzoic acid is a new type of regulator; after spraying peanuts, plant height increases, leaves become larger and thicker, chlorophyll content increases, and photosynthetic efficiency improves, so the number of pods per plant, rate of plump pods, pod weight per plant, 100-pod weight, and 100-kernel weight increase, and the rate of double-kernel pods is high. Spray once each at the beginning of flowering and at the pegging stage with a 100~300×10~6 flower solution, which can increase yield by about 20%.