Application of other regulators in rapeseed
隐藏域元素占位
Application of other regulators in rapeseed
Application of other regulators in rapeseed
Gibberellic acid
Before the rapeseed is transplanted, dipping the seedling roots with 15~20mg/L gibberellic acid liquid can promote the early growth of the plants, shorten the puberty and increase the yield.The roots can be dipped in gibberellic acid-containing fertilizer mud to shorten puberty.The specific method is as follows: use 18~25g of gibberellic acid above 80%, add 100 kg of water, add 2.5~3 kg of superphosphate, and add an appropriate amount of pond mud or loam to make a paste, while dipping the roots of vegetable seedlings in fertilizer Mud, while planting, cultivate soil and water well after planting.The vegetable seedlings treated in this way have more new roots and new leaves, and the greening period can be shortened by 3-4 d.
Naphthalene ethyl indium
Treatment with 50% naphthalene ethyl indine soluble powder or with acetic acid (sodium) (100 mg/L) had a good effect on the rooting of rape axillary buds in soil.In Changde City, Hunan Province, mid-September to early November is a suitable period for cutting propagation. The cutting axillary bud should have 3 leaves, soak the base of the axillary bud with the above concentration of growth material for 4 hours, and then cut into a well-watered and breathable seedbed to take root. The rate reaches 83%~100%, and the reproduction coefficient is 5~7.
Diquat
In the period of rape silique to yellow maturity (about 7 days before harvest), using 25g of diquat mixed with water for foliar spray per mu can reduce the water content of rape silique and grain by 52.66% and 24.84% respectively. The residues of diquat in rapeseed seeds stored for 14 days were 0.13. mg/kg, which met the safety standards of China and the United Kingdom, and no residues of diquat were detected for 21 days of storage.
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