不同机采滴灌方式对棉花生长及产量的影响

为了探索适宜新疆棉花机采模式的滴灌带最佳布置方式。以‘新陆早61 号’为试验品种，研究2种机采滴管方式（一膜两管六行和一膜三管六行）对棉花生长、产量的影响。结果表明，一膜两管六行的边行棉花生育前期生长缓慢，在出苗率，生育进程，农艺性状均显著低于内行棉花。一膜三管六行的棉花边行内行生长差异小，棉田长势均匀。一膜三管六行的棉花的产量和效益分别比一膜两管六行处理的棉花高出255 kg/hm2和1500 元/hm2。生产生更应该推广一膜三管六行的机采栽培模式。

Effects of Different Drip Irrigation Methods on Growth and Yield of Cotton

The paper aims to explore the best arranging model for drip irrigation belt under mechanical harvest of cotton in Xinjiang. The authors took Xinluzao No. 61variety as the experiment material, a field experiment under mechanical harvest model (plantation spacing 10 cm 66 cm 10 cm) was designed using different drip irrigation methods (6 cotton rows with 2 dripping pipes and 6 cotton rows with 3 dripping pipes under a plastic film mulching plantation pattern), plant growth and yield were observed. The results showed that, under 6 cotton rows with 2 dripping pipes, the growth of side-line cotton was slow, and the seedling rate and the growth rate of the side-line cotton were significantly lower than that of in-line cotton. Under 6 cotton rows with 3 dripping pipes, the growth of side-line cotton and in-line cotton was uniform, the growth difference was small. The yield and benefit of 6 cotton rows with 3 dripping pipes were significantly higher than that of 6 cotton rows with 2 dripping pipes. The yield and benefit of the former were 255 kg/hm2 and 1500 yuan/hm2 higher than that of the latter. Therefore, the 6 cotton rows with 3 dripping pipes under a plastic film mulching plantation pattern should be promoted.