经济绿肥开发利用技术研究与推广

针对传统绿肥直接经济效益低 ,导致绿肥生产严重滑坡 ,土壤肥力普遍下降 ,农业环境日趋恶化等问题 ,以提高种植绿肥的经济效益为中心 ,采用“攻关—示范—推广”协同发展的技术路线 ,在建立了一套完整的经济绿肥引种筛选与评价方案的基础上 ,研究确定了 10多个适宜湖南推广应用的经济绿肥品种及其优化栽培技术 ,因地制宜组装了 11种与湖南农业结构调整相配套的高效复种制度 ,提出了走菜肥、饲肥、粮肥、经肥等兼用的道路来恢复和发展绿肥生产。 9年来 ,经济绿肥已推广应用 83万hm2 ,新增产值 3 2亿元 ,产生了显著的生态与社会效益。

Developing Technique and Spread of Industrial Green Manure

Low direct economic results induced the slip of green manure production, fall of soil fertility, worse of agricultural environment. The route of "tackling key problems - setting examples - spreading experiences" was adopted to improve the economic results of green manure. Based on an integral plan of screening seeds and evaluating of industrial green manure, more than 10 varieties were got and optimizing planting technique were concluded suitable for their applying and spreading in Hunan Province. 11 kinds of efficient multiple cropping systems were formed which suitable for local conditions to match the adjustion of agricultural structure in Hunan Province. The green manure should be used as vegetable, forage, grain or economic manure to recover and develop the manure producing. The remarkable benefit in ecology and society was got with more than 3.2billion-yuan' output value by spreading 830?000?hm2.