四川推广粮草轮作的作用与前景

THE ROLE AND PROSPECT OF GRAIN—GRASS ROTATION IN AGRICULTURE OF SICHUAN PROVINCE

本文根据四川省草地资源、畜牧业生产特点,用生态系统的原理,分析了四川省推广粮草轮作的条件和需要,阐述了粮草轮作在草地农业系统中的地位。论述了粮草轮作在草业系统中的纽带作用,它有助于建立“三位一体”的草地农业系统,可促进不同类区草地物能流动,改善生态环境,增加土壤肥力,增强农业活力,对促进商品化畜牧业、草业的发展,具有深远的意义和良好的发展前景。

Based on the principles of ecosystems and the characteristics of agricultural resources and farm enterprises in Sichuan province the potential role and prospect of grain—grass rotation in the local farming systems were discussed in theis paper. The grain—grass rotation was regarded as the link of a soil-crop-livestock trinity system, which would facilitate the material and energy flows within or between systems, and also, Would improve the environment, soil fertility and the efficiency of farming activities.