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密植梨树修剪存在问题及对策柴全喜，何新朝，马君良，张彦武（河北省城市职教中心０５２１６０）我市梨树栽培面积１３３３３ｈｍ２，其中８０年代中后期以后栽植的近１万公顷，品种主要是鸭梨和雪花梨，栽植密度一般为３ｍ×５ｍ或２ｍ×４ｍ，现已进入结果期。但多数梨...
Pear tree pruning problems and countermeasures Chai Quixi, He Xinchao, Ma Junliang, Zhang Yanwu (Hebei City Vocational Education Center 052160) Pear cultivation area of 13333hm2, of which nearly 80,000 hectares planted in the late mid-1980s, the main varieties are pear And snow pear, planting density is generally 3m × 5m or 2m × 4m, has now entered the results period. But most pears ...