High relative humidity is one of main factors causing disease epidemic. Vertical mowing and rationalapplicationof nitrogen fertilizer can reduce the disease damage.
夏季高温高湿是导致病害流行的主要因素之一，垂直刈剪和合理施用氮肥可降低该病的危害。
2
Nitrogen application is the most effective way to adjust of the structure of yields. The rational nitrogen fertilizer technology is one of the available measures for improving the soybean yields.