论文部分内容阅读
本文报道用三种萌后除莠剂对咖啡园杂草的防治效果。材料和方法自1978年8月至1980年2月,位于波多黎各中部潮湿地区的农业试验分站布置了一个大田试验。试区海拔588米。土壤是正常
This article reports the use of three kinds of post-emergence herbicides on coffee weed control effect. Materials and methods From August 1978 to February 1980, a field trial was set up at the Agricultural Experiment Sub-station in the humid area of central Puerto Rico. Trial area 588 meters above sea level. The soil is normal