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Fertilizer Minerals

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All fertilizers are divided into organic and mineral. Organic fertilizers are universal, they contain everything necessary nutrition elements for plants. For example, organic fertilizer is manure contains about 0.5% nitrogen and 0.6% potassium, 0.25% phosphorus, etc. Mineral fertilizers contain many times more nutrients than organic fertilizers. So, for example, nitrogen fertilizer contains 15% nitrogen (sodium nitrate, NaNO3) to 82% (liquid ammonia).Phosphate fertilizers contain from 18% phosphorus (phosphate rock) to 40%. Potassium fertilizers contain potassium from 16% to 62% (potassium chloride - KCl). In complex fertilizers contains nitrogen, phosphorus and potassium. It is known that one kilogram of potassium, added to soil in which the potato is planted, increases the yield of 50 kg. Mineral fertilizers increase the harvest of grain, vegetables and fruit crops.

There are mineral fertilizers containing 1,2 and 3 nutrients, therefore are called simple, double and complex. In addition, some complex fertilizers also contain trace elements such as copper, boron, zinc, manganese. Fertilizer are stored in dry cool place, the shelf life is not limited, but preferably not more than 2 years.

Mineral fertilizers applied to the soil in early spring or autumn before the preparation of the soil. During plant growth the fertilizers also add. (evenly scattered in dry form or watered).


Rock Phosphate

Rock Phosphate deposits are mainly located at Jhamar-kotra, Matoon, Kanpur, Dholki Pati, Dakan-kotra, Kharbariyon ka Gura in Udaipur district, Ram Kamunna, Sallopat area in Banswara district, Bismania and Fatehgarh in Jaisalmer district, Achrol in Jaipur district and Aduka-andawari in Alwar district. The Jhamar-kotra rock-phosphate deposit is the largest deposit in the country.


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Rajasthan alone accounts for 82% resources of gypsum in the country having total resources of 1,055.55 million tonnes. The State continues to be the leading producer, contributing 99% of total output. The entire production of Selenite is from Rajasthan State by three operating mines in Barmer and Bikaner districts. Gypsum is found in the districts of Bikaner, Nagaur, Barmer, Hanumangarh, Jaisalmer, Sriganganagar, and Jalore.


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In Rajasthan occurrences of sub-surface halite bearing eveporites are found over an area of 30,000, covering parts of Sriganganagar, Hanumangarh, Bikaner, Churu and Nagaur districts. Eight sub-basins/depocentres or potash mineralization containing 2% K have been identified around Bikaner, Hansera, Arjunsar, Gharsisar, Jaitpur, Satipura, Bharusari and Lakhasar. Out of these, the last four depocentres are considered to be prospective for potash mineralization. The reserves estimated in Satipura, Bharusari and Lakhasar sub-basins at cut-off grade of 3% K are estimated around 2,476.58 million tones. There is ample scope for establishing fertilizer industries in the State, based on Gypsum, Rock phosphate and Potash.


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