Calcareous soil in many series such as soil soil soil and Takhli lop soil square, etc., and due to these high calcareous soil pH, metal made of some kind. Such as iron, manganese and zinc, etc., in the form of the plant use. Result in plants that have such needs, will show signs of trace element, the symptoms observed to grow slowly, the leaves are yellow (Chlorosis). Specifically, young leaves, or the dried leaves die (Necrosis) result in the yield decreased.
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