沿淮地区节水抗旱稻苗后除草剂的筛选研究

Screening of herbicides applied after seedling emergence of water-saving and drought-resistant rice in the Huaihe River area

对14种除草剂的杂草防效进行了田间试验,以筛选出合适的节水抗旱稻田除草剂,为沿淮地区节水抗旱稻发展提供保障。研究结果表明:节水抗旱稻杂草种类多、数量大,在节水抗旱稻3~5叶期,以667 m^2施10%韩秋好80 mL和288g/L氯氟吡氧乙酸异辛酯66 mL进行茎叶处理,防治效果显著。

Since weeds were an important factor influencing the high and stable yield of water-sav- ing and drought-resistant rice, field experiments with the rice were carried out under 14 herbicide treatments to select a suitable herbicide treatment and promote water-saving drought-resistant rice production in the Huaihe River area. The field experimental results showed that the weeds in the rice fields were large in variety and quantity, and foliage treatment with 80 mL of 10% metamifop ＋ 66 mL of 288 g/L fluroxypr-mepthyl per 667 m2 at 3 - 5-leaf stage of rice had a significant weeding effect.