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1982年以来我们于梨产区,因品种、因地、因树性制宜,实行7改革,连续6年亩产破万斤,最高亩产7692.3公斤的纪录,产品质量也突破了历史最高水平,其改革的要点是: 一、改革育苗:先淘汰根系差、亲合力弱的杜梨、山梨等,改用了抗逆力强、适应性广、生活力旺盛的川梨、水梨、大麻梨作砧木。播前实行精选、沙贮(三成种七成沙层积处理)、催芽(40ppm赤霉素浸种12小时)、适期播种;苗期加强肥、水、中耕、植保和摘心等措施,一年即可培育成干径1厘米以上的健壮苗;嫁接时再于良种母本园采集接穗,提高苗木的纯度和质量;定植前选择水源方便、土壤肥沃的园地,按1米的株行距假植,定干整形,培养成初具基部三主枝的小冠后再以5×4米的行株距定植于改整合格的果园内,加强土、
Since 1982, we have been in the pear producing areas because of the varieties, because of local conditions, due to the tree system, the implementation of 7 reforms, for 6 consecutive years of breaking 10,000 kg per mu, the highest yield 7692.3 kg per mu, product quality also exceeded the highest level in history , The key points of its reform are: First, reform nursery: first eliminate the poor root system, weak affinity Pear, Yamanashi, etc., instead of strong resilience, adaptability, vitality of Chuan pear, pear, marijuana For rootstocks. Pre-sowing, sand storage (30% of sand into three stratification treatment), germination (40ppm GA3 soaking 12 hours), the appropriate sowing; seedling to strengthen the fertilizer, water, cultivator, plant protection and inpping and other measures, one Year can be nurtured into a robust diameter of more than 1 cm seedlings; grafting and then collected in the elite mother garden scion, to improve the purity and quality of nursery stock; choose pre-planting convenient water, fertile soil garden, according to 1 meter spacing leave Planting, fixed dry shaping, cultivate into a small crown with three main branches at the base and then to 5 × 4 meters of row spacing in the restructuring of the orchard, to strengthen the soil,