How long does it take to fertilize before rain is effective?

No matter what crops are planted, they all need to be fertilized, and the specific amount and time are determined according to the growth of the crops, so how long will it take to apply fertilizer to rain?

1. How long will it take to apply fertilizer before rain is effective?

Generally speaking, it will not be effective until it rains after one day of fertilization. Because it rained one day after fertilization, most of the fertilizer has been absorbed by the plant. If it rains after applying fertilizer, Rain Water will wash away a lot of fertilizers, and these fertilizers will dissolve after soaking in Rain Water, but basically on the surface of the soil, only a very small part of them can penetrate into the soil and be absorbed by crop roots.

When will the fruit trees be fertilized?

1. Apply fertilizer to protect flowers before flowering. When fruit trees sprout, they consume more nutrients during the flowering period. if the nutrients stored in the tree last year are insufficient and the nutrient supply is not timely, the flowering period will be prolonged and the fruit setting rate will be reduced. Therefore, the available fertilizer should be applied properly before flowering, that is, 50% of the total nitrogen fertilizer and 20% of the total potash fertilizer in the whole year. If possible, spraying 250 times borax solution of 1 Murray twice at flowering stage can protect flowers and fruits, and greatly improve the fruit setting rate and fruit shape correction rate.

2. Apply stable fruit fertilizer after Xiehua. After flowering, young fruits and new shoots grow rapidly, and topdressing fertilizer can make the new shoots strong, expand the area and thickness of leaves, improve photosynthetic efficiency and reduce physiological fruit drop. If the amount of fertilizer applied at flowering stage is sufficient, less fertilizer should be applied after flowering.

3. Apply fertilizer to promote bud before flower bud differentiation. During this period, part of the new shoots have stopped growing, and the young fruit expands rapidly. if the appropriate amount of nitrogen, phosphorus and potassium fertilizer is applied in time, it can not only effectively improve the photosynthetic efficiency of leaves, promote nutrient accumulation, but also be beneficial to flower bud differentiation. it can obviously reduce the occurrence of "fruit tree size" phenomenon.

4. Applying strong fruit fertilizer in the later stage of growth. Topdressing fertilizer in this period can not only increase the yield of the year, improve the fruit quality, enhance the market competitiveness of fruit, but also promote flower bud differentiation and enhance tree potential. Therefore, we should timely catch up with 60% of the total potash fertilizer, 10% of the total phosphate fertilizer and 10% of the total nitrogen fertilizer.

5. Apply protective tree fertilizer before and after fruit picking. Tree protection fertilizer is also known as base fertilizer (that is, human and animal manure, straw weed pile retting). After a year of growth, flowering and fruiting, fruit trees consume a lot of nutrients, so there is an urgent need to replenish and restore the tree potential in time in winter to enhance the tree's ability to resist freezing damage. Tree protection fertilizer should be applied 10 days before fruit ripening, no later than November. At this time, the annual amount of organic fertilizer is applied once, phosphate fertilizer is 90% of the annual amount, nitrogen fertilizer is 40% of the annual amount, and potash fertilizer is 20% of the annual amount, and it should be mixed evenly and then applied to the fertilizer area.