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对北京市昌平区丰产红富士苹果园苹果叶片中氮、磷、钾、钙、铁、锌、锰7种矿质元素含量进行了分析。结果表明,红富士苹果叶片中每种矿质元素在生长期内最低值出现的时间不同;从7月23日至8月6日,苹果叶片中氮、锌、锰含量均在标准值的正常值范围内,磷、钾、钙、铁含量均低于标准值的正常值范围;北京地区,在连年施足量有机肥的苹果园,生长期内可不施化肥,适当补充磷、钾、钙、铁肥,即可实现苹果优质、高效生产。
The contents of seven mineral elements, nitrogen, phosphorus, potassium, calcium, iron, zinc and manganese in apple leaves of Changbai Red Fuji apple orchard in Beijing were analyzed. The results showed that the minimum time of each mineral element in the leaves of Red Fuji apple was different in the growth period. From July 23 to August 6, the contents of nitrogen, zinc and manganese in the leaves of apple were all within the normal values In Beijing, apple orchards with sufficient amount of organic fertilizer in successive years could not apply chemical fertilizers during the growth period, and could be properly replenished with phosphorus, potassium, calcium, Iron fertilizer, you can achieve high quality and efficient production of apples.