The rational use of chemical regulation technology is an important measure for increasing peanut production. Chemical control technologies commonly used in production are:
1, than long:
It is better to control the growth of stems and leaves than to use for a long time, and it should be used in the next needle period to make the plants dwarf and the leaves thicken to increase the photosynthetic capacity, generally increasing the yield by about 15%. Generally, 30-50 grams of water is used per mu, 30-50 kg of water, sprayed for the first time during the flowering period of peanuts, and sprayed for the second time at intervals of 1 week.
2, paclobutrazol
Paclobutrazol is similar to stilbene in function and has strong inhibitory effect. It is suitable to be applied at flowering stage. Spraying 1 mu of paclobutrazol WP in 40 to 50 g of 30-40 kg of water in middle and late stages of full bloom. Paclobutrazol has a strong inhibitory effect on peanuts, and its concentration should not be too large. If the concentration is too high, it will be too heavy and the pods smaller, leading to a reduction in production. The two application times should be about 10 days apart, and paclobutrazol should not be used when growing too weak.
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