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当前中国南方早稻病害发生情况监测
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当前中国南方早稻病害发生情况监测
截止至2018年6月,华南、江南早稻处于破口抽穗至灌浆乳熟期,江南中稻、西南、长江中下游和东北单季稻处于分蘖期。据全国农业技术推广服务中心统计数据显示,纹枯病在南方早稻区中等至偏重发生,接近上年同期,累计发生面积5,114万亩(340.93万公顷),同比增加5.3%。当前,纹枯病田间病株率一般为5%~35%,高的为50%~85%;病丛率一般为13%~43%,高的为60%~100%。 稻瘟病在华南、西南、江南和长江中游稻区偏轻发生,稻叶瘟累计发生面积558万亩次(37.2万公顷),同比减少19.3...
Fungicides China News 201807 (Chinese version)
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