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Fertilizers can be applied in various ways, such as seed dressing, soaking, sticking, axillary or rooting. Seed dressing is the use of a small amount of fresh water, the fertilizer is dissolved or diluted, sprayed on the surface of the seed, spray while mixing, so that the fertilizer solution evenly stained on the surface of the seed, dried seeding method; soaking is to dissolve or dilute the fertilizer solution To a certain concentration of solution, according to the ratio of 1:10 liquid species, the seeds are soaked in the solution for 12-24 hours so that the fertilizer solution infiltrates into the seed coat with the water, and sows immediately after drying; the root of the root is the rice and other transplants. Before transplanting or transplanting the crop, the fertilizer is diluted to a certain concentration of solution, and the roots of the crop are planted in the fertilizer solution.
After the ditching or digging, the fertilizer is applied to the 3-5 cm ditch and hole in the cultivating layer, and then the seed is planted in the vicinity of the fertilizer belt. The seed fertilizer is kept at a distance of 3 cm or more. Fertilizers used as seed fertilizers require faster release of nutrients and cannot be over-acidic or over-alkaline. The fertilizer itself has no toxic effects on seed germination. Fertilizers commonly used as seed fertilizers include decomposed organic fertilizers, humic acids, amino acid solids, liquid fertilizers, microbial fertilizers, and quick-acting fertilizers. Ammonium bicarbonate, ammonium chloride, and urea should not be used as fertilizer in principle.
The key to the quality of fertilizer application
Fertilizer is applied at the time of sowing or transplanting, the fertilizer is applied near the seed or mixed with the seed to feed the nutrients needed for the initial stage of crop growth. Since the fertilizer is applied directly to the seed, it is necessary to strictly control the amount and select the fertilizer species so as to avoid burning and rotten seedlings, resulting in the lack of seedlings and ridges.