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稻田杂草与水稻争地、争肥、争水、争光、争气,致使水稻减产,在田多人少,每个劳力负担7亩、插秧时间拖长一个月以上、往往不能及时中耕除草的长顺县广顺区更为突出。秧子插下去不久就有牛毛毡、阴篼草、野慈姑等一年生杂草孳生,后来又有牙齿草、光棍草等多年生恶性杂草危害。由于草荒严重,人工除草更加困难,花工多、劳动强度大,而且无法根治,群众迫切要求化学除草。近6年来,先后引进了扑草净、除草醚、敌草隆、二甲四氯等10多种除草剂
Rice weed and rice fight for land, fight for fertilizer, fight for water, win glory, fight for gas, resulting in reduced production of rice, less people in the field, each labor-borne 7 acres, planting more than dragging a long time, often can not cultivate long Shunan Guangshun more prominent. Seedling inserted soon to have cattle blankets, Yin Niu grass, wild arrowheads and other annual weeds breeding, and later there are teeth grass, bachelor grass and other perennial harmful weed hazards. Due to the severe grass shortage, artificial weeding is more difficult, more labor, labor intensity, and can not cure, the people urgently require chemical weeding. In the recent 6 years, we have introduced more than 10 kinds of herbicides, such as prometryn, weeding ether, diuron,