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一、葡萄施肥中存在问题1.有机肥料用量过少,主要依靠化学肥料,降低了土壤的有机含量,物理、化学性状受到了严重破坏。2、注重氮肥施用,不注重氮磷钾的配合,造成树体营养不平衡,对产量、着色、品质影响过大。3、重根系追肥,轻叶面施肥。根系追肥对缓解果树营养临界期的养份供求矛盾十分重要,必不可少。因追肥需要经
First, there are problems in grapes fertilization 1. Organic fertilizer used in too small, mainly rely on chemical fertilizers, reducing the organic content of the soil, physical, chemical properties have been severely damaged. 2, focus on the application of nitrogen fertilizer, do not pay attention to the coordination of nitrogen, phosphorus and potassium, resulting in unbalanced tree nutrition, yield, coloring, quality is too large. 3, heavy root top dressing, light foliage fertilizer. Root top dressing to alleviate the critical period of nutrient nutrient supply and demand of contradictions is very important and indispensable. Due to dressing needs through