论文部分内容阅读
为了适应水稻直播田化学除草的需要,我们对东北三省部分地区水稻直播田化学除草做了一些调查,并进行了二甲四氯和敌稗(“二敌”合剂)灭草试验。一、直播田杂草调查
In order to meet the need of chemical weeding in direct seeding rice fields, we conducted some surveys on chemical weeding of rice field in some areas of northeast China. We also conducted experiments on the weed control of MCPA and propanil. First, live weeds survey