Ground was broken by nature, for example, the acid soil, saline soil, peat soil or soil organic matter, soil and soil contaminated with radioactive materials. Soil heavy metal, etc. is broken because human action as
.Using chemical science. In order to increase the productivity of agriculture can be divided into 2 large group is the fertilizer consists of major elements for plants, including nitrogen (N), phosphorus (P). , and potassium (K).The high acidity.
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