Cotton is a dicotyledonous plant. The amount of boron required is larger than that of monocotyledonous plants. The boron content in the plant is high. The normal boron content per kilogram of plant is 20-35 mg. Below 20 mg, the boron is insufficient. From the seedling stage, cotton began to absorb boron nutrition, and the boron absorbed during the bolling period accounted for 45.4% of the total total growth period, and 65.95% of the boron absorbed by cotton was distributed in the reproductive organs.
Boron fertilizer can promote the growth and development of roots, improve the physiological functions of roots, promote the early development of strong seedlings, improve the leaf speed of true leaves, promote the operation of carbohydrates in cotton plants, coordinate the growth and development of cotton plants, and benefit cotton. The plant is stable, early maturing, and does not prematurely decay. It can effectively prevent the phenomenon of “buds and flowers†​​in cotton, reduce the rate of buds and sheds, increase the number of peaches per plant, single boll weight and clothing points, and improve cotton quality and increase. Fiber length and clothing.
When the cotton is deficient in boron, the root growth is hindered, the lower leaves become larger, the top new leaves become smaller, the petiole has an infiltrated annulus, the main stem grows damaged, the axillary buds grow, the buds and bells fall off, and the buds are not serious. The corolla is shortened, it is not easy to stretch, it is difficult to make peach, which seriously affects cotton yield.
The application technology of cotton boron fertilizer is as follows: Boron fertilizer base application. Use 0.5 to 1 kg of borax per mu and mix with 2000 kg of sifted soil or dry fine soil, spread it in the soil, then plow the soil, and then sow or transplant the nutrient.
As a seed fertilizer. Use 0.5 to 1 kg of borax per mu and mix with 2000 kg of sifted soil or dry fine soil and apply it in sowing or transplanting ditch and acupoints. Pay special attention to the application, avoid contact with the seeds, do not mix seeds, do not cover the seeds, and do not apply directly under the seeds, so as not to hinder the seed germination and seedling growth.
Foliar application. Foliar application of boron fertilizer not only avoids leaching loss, but also avoids the direct contact of boron with soil to produce chemical fixation, which is the most economical and effective method of application. At the same time, the split spraying better meets the needs of boron in different growth stages of cotton.
Spraying period. The best period for spraying boron fertilizer on cotton leaves is bud stage, early flowering stage and flowering and bolling stage.
The amount applied. Generally, 200 g of borax per acre is the best for spraying 100 kg of water on the foliar surface.
Boron fertilizer can promote the growth and development of roots, improve the physiological functions of roots, promote the early development of strong seedlings, improve the leaf speed of true leaves, promote the operation of carbohydrates in cotton plants, coordinate the growth and development of cotton plants, and benefit cotton. The plant is stable, early maturing, and does not prematurely decay. It can effectively prevent the phenomenon of “buds and flowers†​​in cotton, reduce the rate of buds and sheds, increase the number of peaches per plant, single boll weight and clothing points, and improve cotton quality and increase. Fiber length and clothing.
When the cotton is deficient in boron, the root growth is hindered, the lower leaves become larger, the top new leaves become smaller, the petiole has an infiltrated annulus, the main stem grows damaged, the axillary buds grow, the buds and bells fall off, and the buds are not serious. The corolla is shortened, it is not easy to stretch, it is difficult to make peach, which seriously affects cotton yield.
The application technology of cotton boron fertilizer is as follows: Boron fertilizer base application. Use 0.5 to 1 kg of borax per mu and mix with 2000 kg of sifted soil or dry fine soil, spread it in the soil, then plow the soil, and then sow or transplant the nutrient.
As a seed fertilizer. Use 0.5 to 1 kg of borax per mu and mix with 2000 kg of sifted soil or dry fine soil and apply it in sowing or transplanting ditch and acupoints. Pay special attention to the application, avoid contact with the seeds, do not mix seeds, do not cover the seeds, and do not apply directly under the seeds, so as not to hinder the seed germination and seedling growth.
Foliar application. Foliar application of boron fertilizer not only avoids leaching loss, but also avoids the direct contact of boron with soil to produce chemical fixation, which is the most economical and effective method of application. At the same time, the split spraying better meets the needs of boron in different growth stages of cotton.
Spraying period. The best period for spraying boron fertilizer on cotton leaves is bud stage, early flowering stage and flowering and bolling stage.
The amount applied. Generally, 200 g of borax per acre is the best for spraying 100 kg of water on the foliar surface.
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