Brass fertilizer application error and precautions

Rape is very sensitive to boron deficiency. Seedlings lack boron, roots are small and fine, roots are swollen, leaves turn brown and gradually die. Borrelia lack boron, leaf shrinkage, veins and yellowing around, purple patches appear. The flowering period is deficient in boron, the petals are shrunken, the buds are atrophied or even dry, the pods do not inflate or become deformed, and the pods appear, ie "flowers are not real".

Brass vegetable fertilizer misunderstanding

The first is to apply boron fertilizer only in basal fertilizer, while neglecting topdressing boron fertilizer;

The second is to use flower spray fertilizer instead of full use of fertilizer;

The third is that there is no role for boron application at the seedling stage;

Fourth, the amount of boron is insufficient;

Fifth, only use low-level, low-priced boron fertilizer.

Rape boron fertilizer precautions

Comprehensively raise awareness of boron fertilizer needed for rapeseed:

First, boron can be combined with polysaccharides of cell wall to improve the stability of cell wall, promote the synthesis of ribonucleic acid and germination of pollen tubes, and the rapid growth of meristems to prevent rape from being "flowering but not real".

The second is to promote the conversion of carbohydrates in rape, accelerate the synthesis of sucrose and starch hydrolysis;

The third is to strengthen the control of the water content of the cell wall and enhance the cold resistance and disease resistance of rapeseed;

The fourth is to improve the quality of oilseed rape, oil content can be increased by more than 6 percentage points.

Multi-purpose and flexible application of boron fertilizer, rape must be applied throughout the boron fertilizer:

First, when basal fertilizer is sown, about 1 kilogram of borax is applied per acre;

The second is the use of seedling transplanting, 2 to 3 days before planting, per acre seedbed spraying 0.1% to 0.2% borax solution 50 kg, or 0.2% borax solution when planting roots ;

The third is after the winter season after planting, spray 0.2% of Sonic Boron solution, 60 kg per mu;

The fourth is to spray 0-2% of Sorborone solution with 60-70 kilograms per mu during bud stage;

The fifth is about 80 kilograms of solo boron solution sprayed per mu during the initial flowering period.

Pay attention to the quality of boron fertilizer, pay attention to the application method:

Promote the use of high levels of boron fertilizer. When used as a basal fertilizer, it is best to mix it with bio-organic compound fertilizers, or farmyard fertilizers, or inorganic compound fertilizers. When topdressing, pay attention to the following three points: First, fully dissolved; Second, control the amount; Third, no heavy spray, no leakage spray.

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