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The scientific and rational use of boron fertilizer can not only obtain the best yield increase effect with minimum input, but also improve the quality of agricultural products and increase the income. Different types of plants require different amounts of boron.
Generally, when boron is deficient, the growth point of the crop is dead; the stem and petiole are cracked, the stem of the stem is brown and necrotic, and the outer tissue of the rhizome is swollen and hypertrophy, but fragile and brittle. Typical examples of crops include: "flowers and flowers" of rapeseed, "buds without flowers" of cotton, "shells and kernels" of peanuts, "splintered stems" of celery, and "cabbage" of radish.
When using boron fertilizer, you should pay attention to the following aspects:
1. Apply as base fertilizer. Boron is the heavier soil, and borax can be used as the base fertilizer to prolong the time of boron supply. As the base fertilizer, generally use 0.25-0.5kg of boric acid or 0.5-0.75kg of borax to mix with other fertilizers or fine soil, and then apply the ditch strip for a period of 2-4 years.
2, the top of the top dressing. Foliar application of soil, general boron deficiency or boron deficiency is not serious, foliar spray can be flexible according to crop growth conditions, timely boron, the effect is significant. It has the characteristics of fertilizer saving, pollution reduction and rapid plant absorption. It is the most commonly used boron application method. It can be sprayed on the front and back of the leaf surface, but the reverse surface spray effect is better. Foliar application of boron fertilizer should be applied in a timely and appropriate amount according to the vegetative growth or reproductive growth characteristics of the applied crop.
(1) The spraying period should be early and not too late, and the spraying effect after flowering is not significant; the spraying times are better than two times; after applying boron fertilizer, the boron fertilizer should also be sprayed in the critical period of reproductive growth.
(2) Moderate amount. According to the soil boron deficiency status and application crops, combined with the appropriate amount of selected varieties, should not be too little or too much.
Generally, when boron is deficient, the growth point of the crop is dead; the stem and petiole are cracked, the stem of the stem is brown and necrotic, and the outer tissue of the rhizome is swollen and hypertrophy, but fragile and brittle. Typical examples of crops include: "flowers and flowers" of rapeseed, "buds without flowers" of cotton, "shells and kernels" of peanuts, "splintered stems" of celery, and "cabbage" of radish.
When using boron fertilizer, you should pay attention to the following aspects:
1. Apply as base fertilizer. Boron is the heavier soil, and borax can be used as the base fertilizer to prolong the time of boron supply. As the base fertilizer, generally use 0.25-0.5kg of boric acid or 0.5-0.75kg of borax to mix with other fertilizers or fine soil, and then apply the ditch strip for a period of 2-4 years.
2, the top of the top dressing. Foliar application of soil, general boron deficiency or boron deficiency is not serious, foliar spray can be flexible according to crop growth conditions, timely boron, the effect is significant. It has the characteristics of fertilizer saving, pollution reduction and rapid plant absorption. It is the most commonly used boron application method. It can be sprayed on the front and back of the leaf surface, but the reverse surface spray effect is better. Foliar application of boron fertilizer should be applied in a timely and appropriate amount according to the vegetative growth or reproductive growth characteristics of the applied crop.
(1) The spraying period should be early and not too late, and the spraying effect after flowering is not significant; the spraying times are better than two times; after applying boron fertilizer, the boron fertilizer should also be sprayed in the critical period of reproductive growth.
(2) Moderate amount. According to the soil boron deficiency status and application crops, combined with the appropriate amount of selected varieties, should not be too little or too much.
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