论文部分内容阅读
目前,全国各地都在进行高产稳产农田的基本建设,建设的核心问题是培育土壤的肥沃性。什么是肥田、瘦田?培育土壤要达到什么程度,有什么标准?要求土壤工作者对土壤肥沃性的涵义、内容、肥力特征的区分和指标能提出明确的概念和方法,用以制定农田土壤建设的标准和培肥措施。 本文想根据几年来调查和试验资料及过去工作,在肥沃性的内容和肥力特征的区分作初步尝试。谈谈粗浅认识。 一、土壤肥沃性的实质 对土壤肥沃性实质的认识,是制定肥力指标和区分肥力特征的理论依据。理解不同,标准和方法就不一样。具体内容有三方面: (一)土壤肥力的物质基础 物质基础指影响土
At present, the basic construction of farmland with high and stable yield is taking place all over the country. The core issue of construction is to cultivate the fertility of the soil. What standards are required for fertile fields and lean fields? To what extent should soil fertility be developed? It is required that soil workers should define clear concepts and methods for the definition, content and characteristics of soil fertility, Construction standards and fertilizer measures. This article is based on years of investigation and experimental data and past work, in the fertility of the content and the distinction between fertility characteristics as a preliminary attempt. Talk about superficial understanding. First, the essence of the fertility of the soil The real understanding of the fertility of the soil, is to develop a fertility index and distinguish the characteristics of fertility theory. Different understanding, standards and methods are not the same. Specific content has three aspects: (A) of the material basis of soil fertility Substance refers to the impact of soil