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一、合理施肥。单一大量偏施化肥,少施或不施有机肥,易导致土壤有机质缺乏,造成土壤板结,根系吸收能力降低;加之连年环剥、环割,树体营养物质运转受阻,导致树势衰弱,叶片薄小、黄化,出现根系“饥渴”现象,造成苦痘病等生理病害;钙、氮比例失调,易发生水心病、虎皮病等。二、实施果园生草。蓄水保墒,培肥地力,增强树体的抗逆能力;或加强果园水利设施配套建设,保证苹果在生长期旱能灌、涝能排。
First, a reasonable fertilization. A large number of partial fertilization of chemical fertilizers, less or no organic manure, easily lead to the lack of soil organic matter, resulting in soil compaction, reduced root absorption capacity; In addition perennial circumcision, ring cutting, blocked the operation of tree nutrients, resulting in weak bark, leaves Thin, yellow, there root “hunger ” phenomenon, causing bitter pit disease and other physiological diseases; calcium, nitrogen imbalance, prone to water heart disease, tiger skin disease. Second, the implementation of orchard grass. Water storage and soil conservation, fertility fertility, and enhance the resilience of the tree; or strengthen the construction of water conservancy facilities orchards to ensure that the drought in the growing season irrigation, waterlogging row.