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中国科学院遗传与发育生物学研究所农业资源研究中心研究员张正斌、工程师徐萍近日撰文,建议科学深翻土地保障粮食安全。文章指出,近年来,我国农作物病虫草害有加重发展的趋势,除了气候因素影响和品种抗性不强外,减少深翻土地是重要原因之一。由于玉米秸秆是小麦赤霉病病原菌的寄主,长期大量的玉米秸秆还田及存留农田表层,为小麦赤霉病大发生提供了良好的病原菌基础,一旦农田小气候湿润,赤霉病等就很快大发生。今年小麦赤霉病暴
Institute of Genetics and Developmental Biology, Chinese Academy of Sciences Agricultural Resources Research Center researcher Zhang Zhengbin, engineer Xu Ping recently wrote an article, suggested science deep flip land to ensure food security. The article points out that in recent years, the development trend of crop diseases, pests and weeds in our country has been aggravating. Apart from the influence of climatic factors and the low resistance of cultivars, it is one of the important reasons for reducing land conversion. Because corn stalk is the host of the pathogen of wheat scab, long-term large amount of corn straw returning to the field and remaining on the surface of the farmland provide good pathogen basis for the occurrence of wheat scab. Once the microclimate of the farmland is wet, the scab becomes very fast Great happened. This year wheat scab storm