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1.合理施肥、科学灌水。根据红富士苹果的需肥特点,首先每年亩施有机肥4000～5000公斤,亩压草1000公斤,使20厘米以上土壤有机质含量达到1％以上。其次针对连年应用化肥过多,导致土壤理化性状恶化的问题,禁施单一氮肥,大力推行有机专用肥和长效复合肥。同时,结合叶面追肥,增施硼、锌、铁等微量元素。在此基础上,选择无污染的水源,采取喷灌、滴灌或管灌的方式,确保萌芽、花前、果实膨大、封冻4次水,并保持土壤湿度的相对稳定。
1. Rational fertilization, scientific irrigation. According to the characteristics of the need to fertilizer Red Fuji apple, first of each mu organic fertilizer 4000 to 5000 kg, acre pressure 1000 kg, 20 cm above the soil organic matter content of 1% or more. Secondly, in view of the problem of overuse of fertilizers in successive years and the deterioration of soil physical and chemical properties, it is forbidden to apply single nitrogen fertilizer and vigorously promote organic special fertilizers and long-acting compound fertilizers. At the same time, with foliar top dressing, add boron, zinc, iron and other trace elements. On this basis, choose non-polluting water sources, take sprinkler irrigation, drip irrigation or tube irrigation methods to ensure buds, flowers, fruit enlargement, frozen 4 times water, and maintain the relative humidity of soil moisture.