In this essay we will discuss about the types of fertilisers. Essay Contents: Essay on Nitrogen Fertilisers Essay on Phosphatic Fertilisers Essay on Potassic Fertilisers Essay on Calcium, Magnesium and Sulphur Essay # 1. Nitrogen Fertilisers: The ultimate source of nitrogen used by plants is inert gas N2, which constitutes about 78 per cent of the atmosphere. In its elemental [...]
In this article we will discuss about the organic and inorganic forms of soil phosphorus used for improving crop productivity. Organic Soil Phosphorus: Usual organic forms of soil phosphorus are esters of orthophosphoric acid and numerous mono and diesters. Five groups of organic phosphorus esters have been identified of which three esters are important. i. Inositol phosphates (up to 20 [...]
Ammonium sulphate, urea, ammonium chloride, ammonium nitrate and anhydrous ammonia are the important N fertilisers used in crop production. Fertiliser # 1. Ammonium Sulphate: Ammonium sulphate is manufactured by synthetic process in which nitrogen and hydrogen form ammonia gas and as a byproduct of coal and steel industry. Synthetic Process: The process consists of making ammonia by the synthesis of [...]