摘要
昆明气候温和，花卉周年种植，花卉大田内杂草种类多，生长量大。不同地区、不同地势的大田草种不同。通过定点观察，多以一年生杂草为主，生育期内发生两个杂草高峰。香石竹定植时应用除草剂大惠利、乙草胺、都尔、除草通进行土壤处理防除杂草试验，结果表明：以上４种除草剂对禾本科杂草药后２０及４０天除草效果均在９６％以上；药后６０天除草效果仅有除草通低于９０％左右；对阔叶杂草药后２０天及４０天除草效果只有除草通达９０％以上，乙草胺达８０％以上，其余均低于５０％。土壤湿度是影响除草效果的重要因素，应用上述药剂定植时施用香石竹大田，对香石竹植株安全。
Kunming enjoys a mild weather in four seasons; the difference is not obvious. Under such weather conditions, flower can be planted round years. In the flower field, the species of weed are fairly ample. There are different species of weeds at different field topography, annual weeds have a dominant population in flower field. There is two-occurrence peak of digerati abscendens when setting plant Devinol,acetochlor,metolachlor and pendimthalin can be applied to control weeds in fields of Dianthus Caryophyllus. After spraying herbicides 20d and 40d,they had 96%of controlling grass weeds effect. After 60d, it's only penoimethalin cant not over 90%. After sprayed 20d and 40d, penimethalin has the effect of control broad-leafed weeds over 90%,acetochlor has 80%, there are not to 50% for else. Soil moisture was an important influencing factor for these herbicides. Sprayed before setting plant, there is security for Dianthus caryophyllus.
出处
《农药》
CAS
北大核心
1999年第7期17-18,共2页
Agrochemicals
