论文部分内容阅读
一般葡萄“龙干”整形,是在龙干上每隔一定距离留一个固定结果枝组。每个枝组的局部更新,通常采用单枝或双枝更新。这种更新方法不可避免的会使结果枝组远离主蔓,“龙爪”不断增长(图1),造成回缩困难,甚至出现大段光秃现象。采用“超短梢修剪”(0—1节),虽能减缓“龙爪”增长速度,但每个枝组要选留几个短梢结果母枝,易形成大疙瘩,不利养分输导。同时,常因留芽量不足,产量不稳定。怀来县暖泉公社沙营大队老果农候生珠,在对本队不规则“多龙干”树形的改造中,吸收“独龙干”整形修剪的优点,在龙
General grape “dragon dry” plastic surgery, is to stay at a certain distance on the dragon to stay a fixed result Zhizu group. Local update of each branch group, usually single or double branch update. This method of updating will inevitably cause the result branch group to stay away from the main vine and the “dragon claws” will continue to grow (Figure 1), resulting in difficulties in retraction and even large-scale baldness. The use of “ultra-short shoot pruning” (0-1), although slow down the growth rate of the “dragon claws”, but each branch group to choose to stay a few short shoots mother, easy to form large lumps, adverse nutrient delivery. At the same time, often due to insufficient amount of budding, the output is not stable. In Huailai County Warm Spring commune sand camp unit of the old fruit perennial bead, in the team irregular “multi-dragon” tree transformation, absorb the “Dragon Dried” the advantages of plastic pruning, the dragon