海南冬繁玉米田封垄后施用化学除草剂的研究

Studies on Using Chemical Herbicides after Ridge Cover Maize Field Cultivated in Winter in Hainan Province

本试验对海南岛人工除草玉米田块,在玉米封垄后3～5 d内,施用乙草胺防除杂草的效果进行了研究。结果表明:玉米封垄后3～5 d内施用乙草胺(即有效成分含量900 g/L,制剂用量600 mL/hm2+水450～600 L/hm2,防除杂草效果100%。

The experiment was carried out in hand weeding maize land in Hainan Province 3 to 5 days after ridge cover.Acetochlor was applied and its weeding effect was studied.The results showed that applying acetochlor 3 to 5 days after ridge cover,namely,effective content 900 g/liter,preparations dosage 600 ml/hm2 plus water 450-600 liters/hm2,weeding effect was 100%.