Grape leaf surface fertilizer and high yield help

Grape leaf surface fertilizer production increased significantly. In the early stage of growth, nitrogen fertilizer should be mainly applied, 0.3~0.5% urea and 0.2-0.3% potassium dihydrogen phosphate solution should be sprayed, so that the leaves can be enlarged and thickened, and the photosynthesis of the leaves can be enhanced to promote the accelerated growth of new shoots. Before flowering, it is usually carried out about 10 days before flowering. At this time, it can be sprayed with 0.2-0.3% borax or zinc sulfate solution to improve the fruit setting rate and prevent deficiency. Spraying fertilizer after flowering, generally spraying after the flowering period of young fruit, with 0.2-0.3% urea and 0.3% potassium dihydrogen phosphate solution, can accelerate the rapid expansion of young fruit and increase the yield. In the late growth stage, phosphorus and potassium fertilizers should be used as the mainstay. Spraying with 0.5-1% potassium dihydrogen phosphate solution can improve fruit quality and increase sugar content.
Huaxian County Yuexiu Li
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