Herbicide Control Effect Evaluation of Malignant Weed Nut Grass in Sugarcane Field

doi:10.11924/j.issn.1000-6850.casb15110001

Abstract

Abstract: In order to screen herbicides with ideal safety characteristics to control malignant weed nut grass in sugarcane field, 20% thifensulfuron mythl WP and 65% MCPA·ametryne·diuron WP were chosen for the field efficacy trial. The results showed that 20% thifensulfuron mythl WP and 65% MCPA·ametryne·diuron WP had good control effect on nut grass. The optimum dosage of 20% thifensulfuron mythl WP and 65% MCPA·ametryne·diuron WP was 1125 g/hm² (the effective ingredient was 225 g) and 3150 g/hm² (the effective ingredient was 2047.5 g), respectively. These two herbicides should be applied in the vigorous growth period of nut grass (10-15 cm high) and dissolved in 675 kg water per hectare with orientation stem leaf spraying. The control effect after 15 days could be above 87.9%.

CLC Number:

S566.1

Li Wenfeng,Zhang Rongyue,Huang Yingkun,Yin Jiong,Luo Zhiming,Wang Xiaoyan and Shan Hongli. Herbicide Control Effect Evaluation of Malignant Weed Nut Grass in Sugarcane Field[J]. Chinese Agricultural Science Bulletin, 2016, 32(8): 63-66.

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