Abstract.The aim of this article is presented about the soil resources. Is basic in the soil which in Thailand. Is the country of the agriculture with for a long time. Soil is the basis of key elements of agricultures. Is the source of creating human civilization is the important source of plant animal shelter, various creatures And the farming of human life is based on need. To preserve the civilization of the local cuisine. But farming at present. Neglect not the importance and in maintaining the state of the land use land. But it is destroyed by the various factors, chemical fertilizer and agricultural chemical put into soil water to stimulate the growth of plants. Current understanding in soil, not so much in use. Make the soil deterioration could utilize fully the soil soil is not suitable to cement crop. If the soil is to use will not be able to produce or yield is low. It also includes the land with limitations to use. Which, when used, will affect the ecosystem. The main problem of the soil: problem of acid sulfate soils, soil and shallow, saline soil, also in พื้นที่หนึ่ง. There may be more than one type of land problem So the soil amendment to solve every problem. It will increase land use efficiency and effectiveness. The soil is important to Thailand. In order to have a more effective use of soil By describing the problem of soil. With the introduction of cover cropping is the grass as a way to increase the density of the plant, mulching, prevent rain, as well as the improvement in soil. The farmers can be treated. As a method to the fertile soil for cultivation in agriculture. Knowledge from this article to encourage farmers to use the land in the correct way and efficiency even more. Which is the essential foundation of agriculture and farmers.Key words: conservation.
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