【摘要】 本文列举了国内外学者对土壤肥力的众多观点,概述了土壤肥力在认识上的演变。肥力是营养物质和水的储量、给源,也是类生物体,又是物质和能量的库,具有储存、转化、供应等功能。既能满足作物生长对水、肥、气、热的需要,又能对不良环境条件进行抵抗。提高土壤肥力,不能仅局限于有机质数量,而要重视土壤腐植质的更新与活化。农村不仅要开辟多种增加有机肥源的途径,建立起稳定的有机肥源系统,还要搞好土地保养和管理措施,如深耕改土,增加活土层厚度,改善土壤性能。坚持倒茬轮作措施的用肥结构,以平衡土壤肥力。强调轮作中的每个田块都要获得定量的有机物料。更多还原

【Abstract】 This paper enumerates many scholr’s points of view about the country and abvoad and deal with the development of cognition in general line.That from storage capacity of nutrition and sources of water supplement to bio-like structure,depot of material and energe,haye the function of storage,transformation,and supply,etc.It is important that,to improve the soil fertility,don’t limite to the quantity of organic matter,but ought to pay great attention to the renewal and activation of humus.In the countryside,it is better to create more stable organic fertilizer saurces system.Better land conservation and management to stabilize the land fertility and rejnst the rotation and fertilizer application structure to balance the land fertility.emphasize that every tarmland in rotation must get organic matter in quota system.更多还原