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有关研究表明，苹果树形成产量以后，结果量的多少与土壤营养的消耗呈正相关，而且对氮、磷、钾的消耗是成一定比例的。成龄果园每生产５０ｋｇ果需要吸收纯氮２７５ｇ，纯磷１４０ｇ，纯钾２７５ｇ。因此以结果量及结果能力的多少为依据计算施肥量是比较科学的，经多年推...
The research shows that after the formation of apple tree yield, the amount of the results is positively correlated with the consumption of soil nutrients, and the consumption of nitrogen, phosphorus and potassium is a certain proportion. Chengguo Orchard production of 50kg fruit need to absorb 275g of pure nitrogen, pure phosphorus 140g, pure potassium 275g. Therefore, based on the amount of results and the ability to calculate the amount of fertilizer based on the more scientific, after years of push ...