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我国苹果栽培最早始于1870年,距今已有120年的历史。60年代前栽植的苹果树,绝大多数株行距为6×7米左右,亩栽不足20株,是典型的稀植大冠栽培。70年代后全国出现密植栽培热潮,特别是近年来亩栽株数又有所增加。乔化砧树多为3×5米,半矮化砧树多为3×4米,矮化砧树和短枝型品种多为2×4米或2×3米,亩栽44~111株极为普遍。但是由于生产上沿用乔化稀植的传统整形修剪方法,造成部分树生长过旺,条子太多,养分浪费较大,适龄不孕而交叉郁闭,致使密植园不能早产早丰。
Apple cultivation in China began as early as 1870, dating back more than 120 years of history. 60 years ago planted apple trees, most of the line spacing of about 6 × 7 m, less than 20 acres planted, is a typical cultivation of large crowns. After the 1970s, there appeared a dense planting cultivation craze in the country, especially in recent years, the number of planted acres has increased. Qiaowen anvil mostly 3 × 5 meters, semi-dwarfing anvil mostly 3 × 4 meters, dwarfing anvil and spur-type varieties are mostly 2 × 4 meters or 2 × 3 meters, acres planted 44 to 111 strains Very common. However, due to the production of Qiaohua planted by the traditional thinning method of pruning, causing some trees over-growth, too many sliver, nutrient waste larger, age-related infertility and cross canadensis, resulting in close planting can not be premature fattening plantation.