【摘要】 土壤在农业中有十分重要的作用。在宁南山区土壤水分合理利用的方式是:一是建立土壤水分立体供给的生物配置结构体系,包括宏观配置体系,即按峁梁梯田、沟谷等地形配置及循环种植配置体系,即草地、农草地、林草地循环种植,二是合理的有机施肥制度;三是建立合理的保墒耕作制度。更多还原

【Abstract】 Soil water has much important effects on farming. The way to utilize it rationally in Southern Ninxia is to set biological structure system in three dimension deploy of soil water, including macroscopic deploy system, i. e., deploy according to the topographic character of mound, weir, terrace and gully, and circulative system of growing deploy, that is, grass land, land for farm and grass, land for forest and grass; to establish available regulations for the application of fertilizer, and to set reasonable tillage system to protect soil moisture.更多还原