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当前位置: 首页 > 文章 > 鄱阳湖平原直播二晚稻田杂草防除现状及稗草危害损失与防控 江西农业学报 2018 (9) 72-76
Position: Home > Articles > Current Situation of Weed Control,and Damage Loss and Control of Barnyard Grass in Double-cropping Directly-sown Late Rice Paddy in Poyang Lake Plain Acta Agriculturae Jiangxi 2018 (9) 72-76

鄱阳湖平原直播二晚稻田杂草防除现状及稗草危害损失与防控

作  者：
徐荣;王修慧;程飞虎;王颖娴;陈忠平;黄大山;乐丽红
单  位：
江西省恒湖垦殖场;江西省南昌市粮油生产管理站;江西省农业技术推广总站
关键词：
直播;二季晚稻;杂草防除;稗草;危害损失
摘  要：
在鄱阳湖平原区调查了直播二晚稻田杂草防除现状、稗草危害程度及其造成的水稻产量损失等。结果表明:直播二晚田间除草合计农药成本平均为58.0元/667 m~2;直播二晚田间稗草出现5级(严重)、4级(中等偏重)、3级(中等)、2级(中等偏轻)、1级(轻度)、0级(基本无草害)危害的田块面积分别占2.7%、18.3%、21.2%、23.2%、16.2%、18.4%;稗草1~5级危害田块的水稻产量损失率分别为6.9%、10.3%、14.2%、22.4%、49.6%。最后提出了直播二晚田间杂草的防控对策。
译  名：
Current Situation of Weed Control,and Damage Loss and Control of Barnyard Grass in Double-cropping Directly-sown Late Rice Paddy in Poyang Lake Plain
作  者：
XU Rong;WANG Xiu-hui;CHENG Fei-hu;WANG Ying-xian;CHEN Zhong-ping;HUANG Da-shan;LE Li-hong;Nanchang City Grain and Oil Production Management Station of Jiangxi Province;Henghu Farm of Jiangxi Province;General Station of Agrotechnical Extension of Jiangxi Province;
关键词：
Direct seeding;;Double-cropping late rice;;Weed control;;Barnyard grass;;Damage loss
摘  要：
The present situation of weed control,as well as the harm degree of barnyard grass and the rice yield loss caused by this weed in double-cropping directly-sown late rice paddy in the Poyang Lake plain were investigated. The results showed that the average cost of applied herbicides for weed control was 58.0 yuan per 667 m~2. The acreage of double-cropping directly-sown late rice paddy in which the damage degree of barnyard grass was grade 5(serious),grade 4(serious ~ medium),grade 3(medium),grade 2(light ~ medium),grade 1(light) and grade 0(basically no weed damage) accounted for 2. 7%,18. 3%,21.2%,23.2%,16.2% and 18.4%,respectively. The rice yield loss rate caused by barnyard grass damage at grade 1 ~ 5 was6.9%,10.3%,14.2%,22.4% and 49.6%,respectively. Finally,the prevention and control countermeasures of weeds in double-cropping directly-sown late rice paddy in the Poyang Lake plain were proposed.

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