Bohra Industries Ltd.
Makes Fertilizers for Agriculture
Single Super Phosphate (SSP)
Industry Structure and Developments
SSPSingle Super Phosphate (SSP) Fertilizer industry is the pioneering fertilizer industry in the country and the first SSP plant is said to have been established by EID Parry in the year 1906. Manufacturing of SSP is based on perhaps the simplest chemical reaction amongst chemical fertilizer industry. The main raw materials required are rock phosphate and sulphuric acid. SSP is a straight phosphatic multi-nutrient fertilizer which contains 14.5% water soluble P2O5, 12% sulphur, 21% calcium and some other essential micro nutrients in small proportions. SSP, which is a poor farmer's fertilizer (price-wise), is an option to optimise the use of phosphatic fertilizers. It also helps to treat sulphur deficiency in soils (40% Indian soil is sulphur deficient) as well for further enhancement of yields at the least cost. In various crops, which require more of sulphur and phosphate like oilseeds, pulses, sugarcane, fruits and vegetables, tea etc, SSP is an essential fertilizer.

Fertilizer are broadly classified into three primary nutrients – N P K
  • N for Nitrogen {promotes leaf growth and forms proteins and chlorophyll}
  • P for Phosphorous {contributes to root, flower and fruit development}
  • K for Potassium {contributes to stem and root growth and the synthesis of proteins.

In brief, we can say
  • Nitrogen promotes top growth
  • Phosphorus promotes good roots
  • Potassium benefits the whole plant

Advantages of SSP Fertilizer:
  • Provides 15% of total phosphate requirement of the country.
  • Lowest price per kg, preferred by small and marginal farmers.
  • Multi-nutrient fertilizer containing P2O5 as primary nutrient and Sulphur and Calcium as secondary nutrients.
  • It is the cheapest source of Sulphur for the soil.
  • Only phosphatic fertilizer which can utilize Indian rock phosphate deposits.
  • Least foreign exchange per unit of P2O5.
  • Utilizes acid effluent from other chemical industry and thus reduces nation's cost of effluent disposal.

Product Specifications
Presently, the products manufactured at our Umarda plant are as following:

Description Quality Uses
SSP fertilizer having
14.5% Water soluble P2O5, Minimum
4% Free Phosphoric Acid, Maximum
11% Sulphur, minimum
12% Moisture, maximum
21% Calcium, maximum
As per FCO, 1985 Fertilizer

Manufacturing Process
Process Flow Chart For SSP And GSSP