During the bud period, “watering small water and stabilizing topdressing†bud stage fertilizer is mainly based on high-efficiency organic fertilizer. For cotton fields with poor soil fertility and weak cotton, a small amount of urea can be added, generally in 5-8 kg. In this period, combined with fertilization, such as In case of drought, the water can be poured lightly, and the mulch film is removed before pouring to promote the root system.
During the flowering and boll period, “saturated watering, early heavy fertilization†In the flowering and bolling period, “saturated watering, early heavy fertilizationâ€, and found that the growth is slow, the leaves at the top of the noon are wilting and other water shortages, should be immediately watered, insect-resistant Cotton flowering knots early, so it is necessary to apply heavy flowering bell fertilizer early. Generally, in the early flowering stage, the application of urea is 15-20 kg. If the cotton plant has a strong growth, the flower bell fertilizer can be applied or not, and the high-fertility cotton field. When one or two bells are placed in the lower part of the flowering stage, 15 kg of urea is applied per acre. The “saturated watering and early fertilization†in the flowering and boll period can make the cotton pupa full of waist and effectively prevent premature aging.
In the later period, “complementing small water and spraying micro-fertilizerâ€, for small-sized and slightly disease-resistant varieties, pay attention to topping and topping fertilizer in the later stage, spraying foliar fertilizer, and spraying potassium chloride and urea on normal cotton fields. And borax mixture 2 to 3 times, interval 7 to 10 days, the specific ratio: potassium chloride 0.5 kg + urea 0.3 kg + borax 0.01 kg + water 30 kg spray an acre, so that cotton can extend the late leaf function The cotton field presents a scene of “green branches and autumn peach topsâ€. It can spray 2% to 3% of superphosphate solution on cotton fields with strong growth, which has the effect of promoting early maturity and high yield.
During the flowering and boll period, “saturated watering, early heavy fertilization†In the flowering and bolling period, “saturated watering, early heavy fertilizationâ€, and found that the growth is slow, the leaves at the top of the noon are wilting and other water shortages, should be immediately watered, insect-resistant Cotton flowering knots early, so it is necessary to apply heavy flowering bell fertilizer early. Generally, in the early flowering stage, the application of urea is 15-20 kg. If the cotton plant has a strong growth, the flower bell fertilizer can be applied or not, and the high-fertility cotton field. When one or two bells are placed in the lower part of the flowering stage, 15 kg of urea is applied per acre. The “saturated watering and early fertilization†in the flowering and boll period can make the cotton pupa full of waist and effectively prevent premature aging.
In the later period, “complementing small water and spraying micro-fertilizerâ€, for small-sized and slightly disease-resistant varieties, pay attention to topping and topping fertilizer in the later stage, spraying foliar fertilizer, and spraying potassium chloride and urea on normal cotton fields. And borax mixture 2 to 3 times, interval 7 to 10 days, the specific ratio: potassium chloride 0.5 kg + urea 0.3 kg + borax 0.01 kg + water 30 kg spray an acre, so that cotton can extend the late leaf function The cotton field presents a scene of “green branches and autumn peach topsâ€. It can spray 2% to 3% of superphosphate solution on cotton fields with strong growth, which has the effect of promoting early maturity and high yield.
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