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NPK fertilizers are soil amendments applied to promote plant growth, the main nutrients added in fertilizer are nitrogen, phosphorus, potassium,other nutrients are added in smaller amounts. Ammonia is main source of nitrogen. Urea is the main productfor making nitrogen available to plant. Phosphorous is made available in form of super phosphate, Ammonium phosphate. Muriate of Potash (Potassium Chloride) is used for supply of Potassium.
(1)It has abundant nutrient and long fertilizer efficiency. It can promote the healthy growth of plants stably and continuously.
(2)Activate the soil nutrients and improve the fertilizer using ratio.
(3)Improve the soil structure. Strengthen the water conservation and fertilizer conservation ability.
(4)Strengthen the plants' ability of stress resistance, disease resistance and drought resistance. Prevent plant diseases and insect pests. Lower the production cost.
(5) Reduce farmland pollution. Lower the nitrate and heavy metal content in the soil.
(6) Improve the plant quality and yield.