Primary Nutrients
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Nitrogen is one of the most important nutritional elements for plants and is required in comparatively large amounts. It is absorbed from the roots mostly as nitrate and used in the synthesis of the chlorophyll, amino acids, the proteic substances and enzymes of the DNA. Nitrogen is mobile within the plant and, therefore, Nitrogen deficiency symptoms are expressed on older leaves. Nitrogen deficiencies might result in stunted growth, chlorotic leaves and significantly reduced yield.
Nitrogen fertilizers always be used at the start of vegetative growth or at the beginning of the growth of shoots and leaves, promotes root elongation and vegetative growth, help the plants to obtain optimal growth.
Nitrogen Products % N Application Urea 46 
Ammonium sulphate crystal 21
Ammonium sulphate granular 20.5
Ammonium chloride 25
Urea methylene (MU) 38
Urea Formaldehyde (UF) 38
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Phosphorus is a major element for the plant's growing process. It encourages crop yields and is very important for the physiological process of blooming, root growth, fruit setting and the maturing of the fruit. It increases the drought tolerance of plant under severe environmental conditions.
Phosphorus deficiency might result in stunted plant growth; older leaves turn dark purple, poor flowering and root system development.
Phosphorus Fertilizers are especially suited for root development. They are always be applied during the first weeks after planting or after start of new growth.
Phosphorus Products % N % P2O5 % K2O Application Mono ammonium phosphate 12 61 
Diammonium phosphate 21 53
MAP powder, granular 10-11 43
DAP granular 18 46
Mono potassium phosphite 58 38
Mono potassium phosphite 51% liquid 30 20
Phosphoric acid 62 Mono potassium phosphate 52 34
Phosphorous acid 85 Urea phosphate 17 44
Enriched Superphosphate 36
Triple super phosphate 46
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Potassium is important nutritional element for fruit development and fruit ripening. It regulates transpiration, participates in the formation of sugars, activate many growth related enzymes. The quality of crops – degree of sugar, color, taste, mainly depends on Phosphorus and Potassium.
Potassium deficiency might result in unhealthy flowers and fruits; older leaves turn yellow, then brown and die and poor resistance to drought and extreme conditions.
Potassium Fertilizers
Potassium Products % N % P2O5 % K2O Application Dipotassium phosphate 40 53 Tripotassium phosphate 33 65 Tetra potassium pyrophosphate 42 56
Potassium nitrate 13 46
Potassium sulphate 50
