First, we must do a good job of clearing ditch drainage. For the ditches and valleys, the ditches are not clear, and the ditches are dredged in time to reach the gaps and the drainage is smooth; for the ungrooved fields, it is necessary to grasp the ditch, eliminate the water accumulated in the field, and promote the growth of the green manure roots.
Second, we must apply good spring fertilizer. For the field where no phosphate fertilizer is applied in winter, it is necessary to apply the phosphate fertilizer once; for the field with poor growth of green manure, it is necessary to apply a quick-acting nitrogen fertilizer to promote the formation of nodule and nitrogen fixation, and to change the fertilizer with small fertilizer.
Third, spray molybdenum fertilizer and boron fertilizer to increase green manure yield.
Second, we must apply good spring fertilizer. For the field where no phosphate fertilizer is applied in winter, it is necessary to apply the phosphate fertilizer once; for the field with poor growth of green manure, it is necessary to apply a quick-acting nitrogen fertilizer to promote the formation of nodule and nitrogen fixation, and to change the fertilizer with small fertilizer.
Third, spray molybdenum fertilizer and boron fertilizer to increase green manure yield.
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