Nitrogen is a chemical that is considered very important to plants. Soil commonly contains nitrogen quantity not sufficient. Especially when the soil is cultivated for a long time. By not properly taking care of operating the most nitrogen, it will remain in the soil for a very low level. How to fix a problem that has resulted in a short period of time, one method is to put the fertilizer nitrogen fertilizer in various formats, although there will be production released sufficiently moderate prices, but they also have a price higher than any other plant nutrients fertilizers.
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