Key points of cotton spray acetalization control technology
2022-09-21 08:03:48
In the process of cotton growth, in accordance with the principle of a small number of times, the concentration and dosage of the drug are light and heavy, and the specific time dose should be flexibly used according to the management level of rainfall fertilizer and water, and the purpose of growth and appearance and drug use. The number of chemical control in the whole growth period is 4-6 times, generally used in soaking, seedling to bud stage, early flowering stage and flowering and bolling period.
1. Soaking seeds If the cotton seeds are not treated with a coating, they should be soaked with a ketamine. Generally use 10 kg of water plus ketamine powder 1-2 grams to a solution of 100-200ppm, soak the selected cotton seeds for 8-12 hours, and drain the water to sow. This measure has a good effect on promoting root development and enhancing the resistance of cotton seedlings.
2, spraying in the Miao Lei period is generally around June 20, according to the growth and appearance of the drug. During the period from the three leaves to the buds, 0.5-1 gram of ketamine can be used per acre, and 20-30 kilograms of water can be sprayed on the top of the lid (after immersion can be postponed until after buds). It is required to spray evenly. If necessary, increase the number of times according to the situation, properly control the plant type, simplify the pruning and fork, and coordinate the management of water and fertilizer.
3, the initial flowering period with 2-3 tons of ketamine and 30-40 kg of water spray can inhibit the prolonged optimization of the canopy structure and delay the sealing, increase the number of high-quality bells, and simplify the mid-term pruning.
4 spraying in the flowering and bolling period is generally around August 15-25, using 3-4 grams of ketamine powder per acre, spraying 40-50 kilograms of water on the leaves, mainly to inhibit the late ineffective branches and axillary buds. , anti-corruption and late maturity, increase early autumn peach, increase the weight of the bell. Huaxian Agricultural Technology Promotion Center Lu Shuguang
1. Soaking seeds If the cotton seeds are not treated with a coating, they should be soaked with a ketamine. Generally use 10 kg of water plus ketamine powder 1-2 grams to a solution of 100-200ppm, soak the selected cotton seeds for 8-12 hours, and drain the water to sow. This measure has a good effect on promoting root development and enhancing the resistance of cotton seedlings.
2, spraying in the Miao Lei period is generally around June 20, according to the growth and appearance of the drug. During the period from the three leaves to the buds, 0.5-1 gram of ketamine can be used per acre, and 20-30 kilograms of water can be sprayed on the top of the lid (after immersion can be postponed until after buds). It is required to spray evenly. If necessary, increase the number of times according to the situation, properly control the plant type, simplify the pruning and fork, and coordinate the management of water and fertilizer.
3, the initial flowering period with 2-3 tons of ketamine and 30-40 kg of water spray can inhibit the prolonged optimization of the canopy structure and delay the sealing, increase the number of high-quality bells, and simplify the mid-term pruning.
4 spraying in the flowering and bolling period is generally around August 15-25, using 3-4 grams of ketamine powder per acre, spraying 40-50 kilograms of water on the leaves, mainly to inhibit the late ineffective branches and axillary buds. , anti-corruption and late maturity, increase early autumn peach, increase the weight of the bell. Huaxian Agricultural Technology Promotion Center Lu Shuguang
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