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为了研究不同厚度地膜覆盖对棉田经济效益和地膜残留的影响,选择厚度为0.006mm、0.008mm、0.010mm、0.012mm的地膜在新疆棉花主要产区尉犁县进行试验。结果表明:0.010mm和0.012mm厚度地膜种植利润显著高于其他厚度地膜,0.010mm和0.012mm厚度地膜对比0.006mm厚度地膜,使棉花经济效益分别增加11.7%、15.1%;0.010mm和0.012mm厚度地膜的残留量显著低于其他厚度地膜,0.010mm和0.012mm厚度地膜对比0.006mm厚度地膜,使地膜的残留量分别降低60.4%、54.6%。为了促进棉花种植的可持续发展和棉田的可持续利用,覆盖0.010mm和0.012mm厚度地膜为最优选择,0.008mm厚度地膜次之,0.006mm厚度地膜最差。
In order to study the effects of different thickness of plastic film mulching on economic benefits and residual film in cotton field, the film with thickness of 0.006mm, 0.008mm, 0.010mm and 0.012mm was selected for testing in Yuli County, Xinjiang, the main cotton producing area. The results showed that the profit of film planting 0.010mm and 0.012mm was significantly higher than that of other thickness film, the film thickness of 0.010mm and 0.012mm was 0.006mm, the economic benefit of cotton increased 11.7% and 15.1% respectively; the thickness of 0.010mm and 0.012mm The residual amount of mulching film was significantly lower than that of other thickness mulch film. The film thickness of 0.010mm and 0.012mm compared with the film thickness of 0.006mm, the film mulch residues decreased by 60.4% and 54.6% respectively. In order to promote the sustainable development of cotton planting and the sustainable utilization of cotton fields, the film covering the thickness of 0.010mm and 0.012mm is the best choice, the film of 0.008mm thickness is the second, and the film thickness of 0.006mm is the worst.