宁南山区不同施肥模式对苜蓿地上生物量的影响研究

宁南旱作农区是中国经济比较落后，生态环境十分恶劣的地区。西部大开发以来，该区苜蓿人工草地建设取得显著成就，如何在干旱条件下提高苜蓿产草量，成为该区生态经济农业研究的战略课题。根据不同的施肥模式试验，研究探讨了该地区苜蓿高产施肥技术措施，针对宁南地区的农业生态条件，提出适宜该区苜蓿高产施肥技术措施与施肥方案，常年降水不足400mm的宁南旱作农业区，在一定的施肥水平下仍然可以实现高效草地生态经济农业。生态经济农业(Ecological economy Agriculture)：简言之就是“产业化的生态农业”，是农业生态学、区域经济学和生态经济学理论在农业上的应用，不同于传统意义上的生态农业，是基于生态农业基础之上的新经济时代农业和农村经济的组织形式，其完善了生态农业理论界面的不足，将生态农业与农业产业化经营实现了有机结合，解决了农民组织化程度低、小农经济难以与大市场对接的问题。

Study on the effect of fertilizer mode applied on output of alfalfa in dryland farming of south part of Ningxia

the south part of Ningxia is the not enough development area in china. the environment is terribly asperity. Since the comprehensive development of western in china, the manpower grassland of clover blossom has gained marked achievement. It was a strategic problem how to increase the output of alfalfa. Based on the study of different fertilizer mode, discussed the fertilizer skill of alfalfa in the south part of Ningxia. A fertilizer mode project in order this area has been put forward. under 400mm precipitation, high efficiency grassland farming can be realized in the some level of fertilization.