Farmers use chemical fertilizers Remains an essential and important in increasing crop yield per acre higher. Although at present, the use of chemical fertilizers widely. But mostly it's the wrong sources. (You may enter as well. Follow the instructions broadly Of the sale of fertilizers) If the fertilizer contains less nutrients needs of plants would make plants stunted growth, low yield if an excessive or does not meet the needs of the plant. It would cost higher than it should be, then. May also affect the growth of plants. Resistance to insect pests. And unsuitable conditions such as hot weather, cold winds, insect infestations, plant diseases, lack of immunity. It has been severely damaged easily. The effect on the yield of crops. Cause the need for chemical pesticides. The use of each chemical affects the health of farmers. Impact on toxic residues. And contaminate the environment. And thus have high production costs further.
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