杉木育苗配套新技术和经济效益探讨

本文介绍杉木育苗新技术,经过三年的试验成功地探索出一种“宽床窄沟—模板作床—两层黄心土覆盖—化学除草”的配套育苗新模式,可提高圃地利用率15％,提高苗木保存率38.5％,减少杂草萌生,减少病菌感染,节约除草投工量,经济效益比常规育苗提高30％,比应用单项新技术措施也更好,而且此模式简便易行,在生产上具有很高的推广价值。

The Study on a New Series of Seedjingraising Techniques of China-firand Its Economic Benefit

This paper introduced a new series of seedlingraising techniques of China fir. Through three-year's experiments, the Author created successfully a new series of seedlingraising techniques: wide-nursery bed and narrow drainage ditch-- making nursery bed with shuttering--cpvering seeds with two layers yellow subsoil-- chemical weeding. It can increase utilization ratio of nursery lands by fifteen percent and preservation ratio of nursery-stock by thirty-eight point five percent, reduce germination of weeds and infeetion of germs, andsave time of weeding. As for its economic benefit, using of the new series of seedlingraising techniques was thirty perceht more than that of contional seedlingn-raising techniques, and was more than only using one of the new techniaues, too. The new seedling raising techniques were simply, meanwhile have aprofit value for popularizing in the production about it.