Fertilizer dissolves and mixes application liquid fertilizer does not need to stir or mix, the general solid fertilizer needs to mix with the water to become the liquid fertilizer, if necessary, the separation, avoids the precipitation and so on the question. Fertilizer amount to control the amount of fertilizer to be mastered, the appropriate concentration of infusion into the irrigation flow is about 0.1% of the irrigation flow, excessive application may cause crops to death and environmental pollution. In the first stage of the fertigation and fertilization program, wetting water was used without fertilizer; in the second stage, the fertilizer solution was used for irrigation; in the third stage, the irrigation system was cleaned with fertilizer-free water.
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