论文部分内容阅读
据全国农技中心预测,2017年我国水稻病虫害将呈重发生态势。那么,今年水稻病虫害该如何防?全国农技中心日前发布了《2017年水稻重大病虫害防控技术方案》。非药剂预防技术有哪些农艺措施(1)翻耕灌水灭蛹。越冬代螟虫化蛹期统一翻耕冬闲田、绿肥田,灌深水浸没稻桩7~10天,降低虫源基数。(2)健身栽培。适时晒田,避免重施、偏施、迟施氮肥,增施磷钾肥,提高水稻抗逆性。(3)清洁田园。晚稻收割后立即翻耕,减少落谷稻冬季病毒寄主
According to the National Agricultural Technology Center forecast, in 2017 China's pests and diseases will be re-emerged. So, this year how to prevent rice pests? National Agricultural Technology Center recently released the “2017 major pests and diseases prevention and control of rice programs.” Non-pharmacy prevention technology which agronomic measures (1) tillage irrigation to eliminate pupae. Winter overwintering adult bore pupation stage unified tillage idler winter field, green manure, irrigation deep immersed rice paddy 7 to 10 days, reducing the number of insect base. (2) fitness cultivation. Timely Sha Tin, to avoid re-Shi, partial Shi, late nitrogen fertilizer, increased phosphorus and potassium, improve rice resistance. (3) clean the garden. Immediately after harvest, late rice tillage, reducing winter wheat host winter virus