间作覆盖物对枸杞棉蚜、杂草及土壤养分的影响

The effects of intercropping coverings on cotton aphids,weeds and soil nutrients

为了筛选出能够有效控制枸杞害虫棉蚜的种群数量、减少枸杞田杂草发生、增加土壤养分的覆盖物种类,通过枸杞田间作不同覆盖物,探讨其对枸杞棉蚜种群数量、枸杞田杂草发生及土壤养分的影响。结果表明:间作黄芪的枸杞上棉蚜数量最多,间作箭筈豌豆的枸杞上棉蚜的数量最少;覆盖物黄芪上的棉蚜数量最多,毛苕子上的棉蚜数量最少;间作紫花苜蓿、黄芪和箭筈豌豆覆盖物下的土壤养分各项指标与对照比较,均有所增加。

In order to select the coverings to control the population of cotton aphid（ Aphis gossypii Glover）,reduce weeds and increase soil nutrients,the effects of different coverings on control cotton aphids＇ populations,weeds and soil nutrients were investigated in the intercropping of Lycium barbarum field.The results show that the cotton aphids number on Chinese wolfberry tree is the largest in the Astragalus membranaceus intercropping row,and the minimum in the Vicia sativa intercropping row.The cotton aphids is the largest on the Astragalus membranaceus plant,and the minimum on the Vicia villosa plant.The index of soil nutrients under coverings alfalfa（ Medicago sativa）,and Astragalus membraneaceus,and Vicia sativa is relatively higher than the control group in the intercropping of Lycium barbarum field.