“土壤肥力类型”是在全国土壤普查资料汇总中总结了农民群众鉴别土壤肥瘦的经验,和土壤科学工作者对土壤肥力认识的基础上而提出来的新概念,是土壤诸肥力因素状况及其协调性的高度概括,从综合的和动态的土壤肥力观念出发,来阐明土壤对供应植物生长所需的水分、养分、热量、空气等生活条件和调节这些生活条件的不同能力。凡诸肥力因素与作物生理作用间很协调,土壤可及时满足作物对水分、养分、温热和空气的需要,便可获得高产,反之土壤即显贫瘠,作物产量便大为降低。因此将土壤肥力类型化,有利于观察研究天、地(土壤)、人、物(作物)四者相互影响的内在关系,对土壤培肥和作物高产有实际指导意义。 肥力类型具有下列三方面内容: The “soil fertility type” is a summary of the survey results of the national soil census summarized the experience of peasants in identifying the fattening of the soil, and soil scientists on the basis of knowledge of soil fertility put forward the new concept of soil fertility factors and their status The high level of coordination is based on a comprehensive and dynamic concept of soil fertility to clarify the different capacities of the soil to adapt to living conditions such as moisture, nutrients, heat and air required for plant growth. When all the fertility factors and crop physiological functions are well coordinated, the soil can meet the demand of crops for moisture, nutrients, warmth and air in time to obtain high yield. On the contrary, the soil is poor and the crop yield will be greatly reduced. Therefore, the type of soil fertility is conducive to observe the inherent relationship between the four aspects of the study of heaven, earth (soil), people, things (crops), practical guidance on soil fertility and crop yield. Fertility types have the following three aspects: