间栽和混播对作物病害的防治效果

进行了小麦与大麦、小麦与蚕豆间栽和不同小麦品种混播,研究不同栽培技术在控制病害中的作用。选用不同的抗小麦锈病品种,与生产上常用的大麦品种和蚕豆品种进行间栽和混播试验。试验结果表明,间栽和混播技术都能持续有效地控制和降低小麦条锈病的危害。在小麦全生育期,间栽对小麦条锈病的控制有效率在28.02%~65.5%之间,并推迟条锈病的发生3~25d;小麦混播对条锈病的控制有效率在40.94%~62.57%之间,推迟14 d发病。小麦与蚕豆间栽,蚕豆叶斑病的病情指数下降,控制有效率在29.3%~57.9%之间。间作和混播对作物产量也有较大的提高。

The studies on control crop diseases by using intercrop and mixture of variety in the fields

This paper reports the field study in the different cultivation to control wheat diseases and faba bean disease.The results showed that the intercropping of wheat and barley,or wheat and faba bean,has not only continuously controlled occurrence of wheat stripe rust,reduced the usage quantity of chemical fungicides in the fields,protected the agro-ecosystem,but also increased yields and farmer incomes.In full season of wheat,wheat stripe rust was controlled about incidence of 28.02 %-65.5 % by the intercrop of wheat/barley or wheat /faba bean,and mixed planting of different wheat varieties.The occurrence date was delayed about 3-25 d (intercrop) and 14 d(mixed planting).The leaf spot of faba bean was controlled by 29.3 %-57.9 %.