The key point is to apply phosphate fertilizer to rape at seedling stage.
Rape is a crop that needs more boron. Lack of boron at the seedling stage, the root system stops growing, there is no root hair or no lateral root, the growth point changes from brown to scorched and dies; timely application of boron fertilizer plays an important role in high yield and good quality of rape. The specific method is as follows: boron fertilizer as base fertilizer is directly applied to the soil, which can be mixed with organic fertilizer or nitrogen and phosphorus fertilizer before transplanting in rape seedbed or field, or mixed with dry slime. Because boron fertilizer has aftereffect, once as base fertilizer, it can be applied again after 1-2 years. Because boron fertilizer has inhibitory effect on seed germination and young root growth, direct contact between boron fertilizer and seeds should be avoided. Root-dipping transplanting uses 0.1% concentration of boron fertilizer solution as root-dipping fertilizer when rape seedlings are transplanted, which plays a good role in promoting root development and turning green. The method is to dip the root system in boron fertilizer solution after the rape seedling is pulled up, and transplant it immediately, or make the fixed root water leaching after transplanting rape. When boron fertilizer was not used in transplanting rape or direct seeding rape at seedling stage, when the total leaf number of early and middle mature varieties was 10: 12, and that of late-maturing varieties was 15, borax was 200 × 250 g / mu and 50 ~ 75 kg / mu.
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How to rett biogas rot phosphate fertilizer
The amount of phosphorus uptake of rape was the highest at bolting stage, but the effect of phosphorus utilization and yield increase was the best at seedling stage. Because phosphorus can be used repeatedly in rape, the earlier the absorption period is, the greater the efficiency is. The application of phosphate fertilizer can promote the growth stage, 2-4 days earlier in seedling stage, 2-6 days in bolting stage, and 1-2 days in mature stage.
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No mixed use of zinc fertilizer and phosphate fertilizer
The application of phosphate fertilizer is very important for high quality, high yield and rich wheat. Why do you say that? First, phosphorus plays a role in ensuring the high yield and high quality of wheat, but the content of available phosphorus in some cultivated land is on the low side; second, at present, the ways and methods of applying fertilizer are not scientific enough, so it is said to increase the application of phosphate fertilizer and family.
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