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依据系统工程的基本原理,对宁南半干旱旱作农区的农牧业系统进行优化设计,拟定了现状农牧业优化结构和潜势农牧业优化结构两套方案。陶庄实验—示范区的8年实践证明,以扩种多年生豆科牧草—紫花苜蓿为突破口,确立“草—畜—粪—粮”的良性物质循环体系,实施在“有机为基础,有机不足无机补”的农田培肥技术,可以有效而明显地提高旱区农田的水分转化效率,促使粮油生产、畜牧业生产和经济效益持续增长,系统生产力得以增进。为宁南半干旱区及与之相似的西北黄土高原其它地区探索出一条切实可行的农业发展模式。
According to the basic principle of system engineering, we optimized the system of farming and animal husbandry in semi-arid farming area in southern Ningxia, and proposed two schemes of optimizing the structure of agriculture and animal husbandry and optimizing the structure of agriculture and animal husbandry. Taozhuang experiment - Demonstration Zone 8 years of practice has proved that the expansion of perennial leguminous forage - alfalfa as a breakthrough, the establishment of “grass - livestock - manure - grain,” a virtuous material recycling system, implemented in “organic-based, organic deficiencies Inorganic fertilization ”of farmland fertilization technology, can effectively and significantly improve the efficiency of farmland water conversion efficiency, and promote grain and oil production, animal husbandry production and economic efficiency continued to grow, the system productivity can be improved. For Ningxia semi-arid region and its similar areas in the other parts of Northwest Loess Plateau to explore a practical model of agricultural development.