First of all, the walnut trees that have already been set up are applied after flowering. The amount of urea applied is 250 g plus 150 g of compound fertilizer (high phosphorus content); the newly planted and tested fruit of walnut trees is 15 cm long when new shoots are applied. Into the amount of 100 grams of urea plus 50 grams of compound fertilizer. Secondly, foliar spray fertilizer, spraying gibberellic acid and boron fertilizer at the peak of female flowers can increase the fruit setting rate. Spraying 0.3% to 0.5% urea every 15 days, can quickly increase the strength and leaf greening thickening effects. Top dressing and foliar spray can be performed simultaneously or alternately.
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