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“壮胆药”的由来稗草是水稻的大敌,几乎所有种植水稻的地方都有稗草的危害。稗草不但和水稻争夺肥料、水份、阳光,而且还传染病虫害,对水稻产量有很大影响。贫下中农为了对国家多做贡献夺取水稻高产,每年要投入大量劳动力去拔除稗草。目前虽然有除草醚等除草剂、在稻田除稗上起了很大作用,但是,除草醚只能杀死刚刚萌动的草芽,对已经出土的1—2叶的稗草就杀不死
Barnyardgrass is the enemy of paddy rice. Almost all barley grass is harmed in the place where paddy rice is grown. Barnyardgrass not only competed with rice for fertilizers, moisture and sunshine, but also infected pests and diseases, which had a great impact on rice yield. In order to contribute more to the country and to gain high yields of rice, the poor middle peasants have to invest a lot of labor force to remove barnyardgrass every year. Although weeding herbicides ethers currently play a significant role in barnyard grass addition to rice, but weeding ether can only kill just sprouting buds on the already unearthed 1-2 leaves of barnyard grass to kill