土壤养分是土壤肥力的主要因素之一,也是植物营养的物质基础。通过测定土壤养分含量,解决土壤与植物养分供求方面的矛盾,如何科学合理施肥,降低农业投入成本,获得高产,提高农民收入,保护土地环境,减少污染,倡导绿色植物具有重要意义。 Soil nutrients is one of the main factors of soil fertility, but also the material basis of plant nutrition. It is of great importance to determine the contradiction between supply and demand of soil and plant nutrients by measuring the nutrient content of soil and how to fertilize it scientifically and reasonably, reduce the input cost of agriculture, obtain high yield, raise farmers’ income, protect the land environment, reduce pollution and promote green plants.