简化整枝和种植密度对蒜套棉烂铃及产量的影响

Interaction of Simplified Pruning and Plant Density on Rot Boll and Yield of Cotton Intercropped with Garlic

为减少蒜套棉烂铃的发生,达到优质高产高效的目的,研究了整枝方式与种植密度对棉花烂铃及产量的影响。结果表明,简化整枝和降低密度都能有效改善棉花烂铃状况,简化整枝/密度33 000株·hm-2较正常整枝/密度45 000株·hm-2烂铃率降低11.01个百分点,该组合皮棉单产最高为2 035 kg·hm-2,较正常整枝/密度27 000株·hm-2增产14.6%。

In order to decrease the rot bolls of cotton intercropped with garlic and reach the purpose of good quality , high yield and high benefit , the interaction of pruning method and plant density on yield and rot boll were studied in this paper .The results showed that simplified pruning and lower plant density could significantly decrease the rot boll rate .The rot boll rate decreased 11 .01 percentage points through simplified prun-ing at 33 000 plants per hectare compared with that through normal pruning at 45 000 plants per hectare .The combination of simplified pruning and 33 000 plants per hectare could obtain the highest lint cotton yield as 2 035 kg per hectare, which increased by 14.6% compared with the combination of normal pruning and 27 000 plants per hectare .