Effects of concentration of atrazine and butachlor in soils on growth and pesticide residue of Chinese cabbage BEHAVIORS OF ~(14)C-BUTACHLOR, ~(14)C-CHLORPYRIFOS AND ~(14)C-DDT IN Rana japonica japonica GUENTHER Effect of acetanilide herbicides butachlor on Phsiological and Biochemical of Microalgae Dunaliella salina THE PRESENT SITUATION OF RESISTANCE OF THE BARNYARDGRASS TO BUTACHLOR IN THE RICE PLANTING AREAS IN CHINA Effects of different doses of bensulfuron-methyl·butachlor and quinclorac on the growing environment and nutrient accumulation of Chinese milk vetch 控释剂型~(14)C标记除草剂向水中释放的动力学研究