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松树育苗,除草靠手工操作,花劳力很多,时间要占据整个育苗时期的三分之一,如遇连续阴雨,劳力紧张,稍有疏忽,松苗就会被杂草淹没,以致影响松苗生长.为了消除草害,我们从1978年起,用化学除草剂进行除草试验.在实践中摸索了一些经验.现介绍如下:一、除草剂品种和用药量:扑草净和除草醚混合使用,每亩每次用50%扑草净可湿性粉剂5两加20%除草醚1市斤(如用40%除草醚则用半市斤),兑水100—150斤喷雾,或用细土40—50斤撒施.
Pine seedlings, weeding by manual operation, a lot of labor, time to occupy one-third of the entire seedling period, in case of continuous rain, tension, a slight negligence, pine seedlings will be submerged by weeds, affecting the growth of pine seedlings. Weed elimination weeds, we started from 1978, weeding herbicides tested in practice to explore some of the experience are as follows: First, the herbicide varieties and dosage: Prometryn and weed ether mixed use, per acre Each with 50% prothiad net WP 5 plus 20% 20% weed killer (such as 40% with half-catty ether), watered 100-150 kg spray, or fine soil 40-50 Jinsa Shi.