稻瘟病大面积综合防治技术的研究

 在稻瘟病菌抗药性研究基础上,进一步查明影响田间防效的六大因素。依据病菌、作物、环境条件三者之间相互影响、制约的密切关系,制定以品种、合理密植、施肥、管水等农业栽培技术为主,辅以科学、合理应用化学保护的一套综合防治措施,对不同地区、不同年份病害严重地区,连续多年进行综合防治,都取得较好的大面积防治效果。损失率降低到1%左右。

Studies on the Integrated Control of Rice Blast in Vast Fields

Based on the investigation about the Resistance of rice blast(Pyricularia oryzae) against fungicide, we have made certain of those factors influencing the effectiveness of the blast control measures in the fields, and an analysis on the interactions between the pathogen, host plants and environmental conditions also made. In the light of the local conditions, we have established an integrated control measures against the rice blast covering the control, and the proper uses of breeds, close planting, fertilizing, irrigation and chemical protection. These measures have been proved successflly by repeated field experiments and demonstrations in many places and for years. The loss of grain output can be reduced to around 1%.