What is fertilizer aftereffect
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Fertilizer aftereffect refers to the fact that the effective nutrient used for fertilizer application has not been fully utilized in the season, and can still exhibit a certain fertilizer effect in the next season or next year. The aftereffect of fertilizer is most closely related to the nature and type of fertilizer. Hard-to-decompose organic fertilizers and insoluble phosphate fertilizers have the longest aftereffects. If the application rate is large, it can show fertilizer effect in the second quarter or even two or three years after application. The fast-acting nitrogen fertilizer is easily absorbed and utilized by the crops, and is often easily lost in the sandy soil or when the irrigation water is too much. Generally, it does not show aftereffects, or the aftereffect is not obvious. The quick-acting phosphate fertilizer is easily fixed after it is applied to the soil, and it cannot be fully utilized in the season, and there is also a post-effect performance.