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除草剂的普及和合理使用,是桑园生产的一项很重要的省工措施。本文简述桑园杂草防除的现状和存在问题。 1.桑树省工栽培趋势桑树栽培面积以1930年的71万亩为最高,其后逐渐减少,到1985年为10万亩。与桑园栽培有关的技术逐步向省工化发展。桑叶采收从摘叶转变为条桑收获,中耕除草从锄头转变至旋耕,以及除草剂的推广普及等。其结果,每10亩养蚕量所需总劳动时间逐年减少,1985年只为1965年的40％,1亩桑园栽培所需劳动时间只为1965年的34％。
The popularization and reasonable use of herbicides is a very important labor-saving measure for mulberry production. This article describes the status of mulberry weed control and existing problems. 1. Cultivation trend of mulberry workers Provincial mulberry cultivation area of 710000 acres in 1930 as the highest, then gradually reduced to 1985 to 10 acres. And mulberry cultivation-related technology gradually to the provincial labor-based development. Morus alba harvest from the leaves into the mulberry harvest, cultivating weeds from hoe to rotary farming, and the popularization of herbicides and so on. As a result, the total labor time per 10 mu of silkworm reared decreased year by year, only 40% of that in 1965 in 1985, and the working time required for mulberry cultivation on one mu was only 34% of that in 1965.