间作番茄对甘蓝生长及其主要害虫种群数量的影响

研究了甘蓝、番茄不同间作比例对甘蓝生长及主要害虫种群数量的影响,以期找到适宜的间作比例,为生产实践中进一步推广应用提供理论依据。试验结果表明,甘蓝与番茄间作模式,对甘蓝主要害虫菜青虫、小菜蛾、菜蚜等有一定的趋避效果,但6∶1的间作处理效果较差,4∶1、2∶1的间作处理效果良好,且差异不明显;2∶1的间作处理由于间作密度小,甘蓝受番茄生长的影响大,植株生长不良,6∶1的间作处理由于间作密度较大,甘蓝受虫害影响大,叶球虫孔数多,商品性差,4∶1的间作处理,植株生长良好,叶球饱满、质量大、商品性好。综合各项数据分析,4∶1的间作比例更合适。

Effects of Intercropping with Tomato on Growth of Brassica oleracea L. and Population of Its Main Pests

In this paper,the effects of different intercropping ratios of cabbage(Brassica oleracea L.)and tomato on the growth of cabbage and the population of its main pests were studied in order to find out the appropriate intercropping ratio and provide a theoretical basis for further promotion and application in production practice.The results showed that the intercropping mode of cabbage and tomato had a certain preventing effect on the main pests of cabbage,such as cabbage caterpillar,Plutella xylostella and cabbage aphid.The preventing effect of the 6∶1 intercropping ratio treatment was poor.The preventing effects of 4:1 and 2∶1 intercropping ratio treatments were good,and the difference between them was not obvious.Due to the low density,the cabbage of 2∶1 intercropping ratio treatment was greatly affected by the growth of tomato and grew poorly.Due to the higher density,the cabbage of 6∶1 intercropping ratio treatment was greatly affected by insect pests,and had a large number of leaf ball insect holes and poor commercial property.Cabbage had good plant growth,plump leaf balls,high weight and good commercial quality with the intercropping ration of 4∶1.According to the data,the 4∶1 intercropping ratio was more suitable.