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在大田自然生态条件下,对目前生产上采用的三种配置方式下的冠层结构及与产量的关系进行研究。结果表明,在北疆特早熟棉区适期播种条件下,最适配置方式为小三膜。该配置方式下,棉花冠层结构及光合物质累积均优于其它群体,经济产量高。同时,提出适宜冠层结构的若干指标,为确定棉花高产栽培措施及建立棉花生产管理模型提供参考。
Under the natural ecological conditions in the field, the relationship between the canopy structure and the yield under the three kinds of configuration modes currently used in production was studied. The results showed that under the conditions of sowing in the special precocious cotton area in Northern Xinjiang, the optimum arrangement was the tri-membrane. Under this configuration, the cotton canopy structure and accumulation of photosynthetic substances are superior to other groups, with high economic yield. At the same time, a number of indicators suitable for the canopy structure were put forward, which could provide some references for determining high-yielding cotton cultivation and establishing cotton production management model.