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宁夏黄河灌溉区的水稻栽培面积不断增加,水稻插秧栽培已逐渐发展成为主要的方式。由于稻田前期水层较浅,因而有利于稗草的滋生发展。尤其是近两年我区推广卷秧(小苗带土移栽)栽培,移栽时稻秧很小(2.5～3叶),早期稻田水层控制更浅,因而有利于促使杂草大量萌发。近年,在我区使用除草醚消灭水稻本田稗
The rice cultivation area in the Yellow River Irrigation District of Ningxia has been continuously increasing, and the rice transplanting and cultivation has gradually become the major way. Due to the shallow water layer in the early paddy field, it is conducive to the breeding of barnyardgrass. Especially in the past two years, our province has promoted the cultivation of curly seedlings (transplanting seedlings with soil). When transplanted, the transplanted rice seedlings are very small (2.5-3 leaves), and the control of the water layer in the early paddy fields is shallower. Therefore, it is conducive to the massive germination of weeds. In recent years, the use of weed control ether in our area to eliminate rice Honda barnyardgrass