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 […]
List of Fertilisers Containing Nitrogen | Soil Fertility | Agronomy
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List of Fertilisers Containing Phosphorus | Soil Fertility | Agronomy
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List of fertilisers containing phosphorus:- 1. Single Superphosphate 2. Triple Superphosphate 3. Ammonium Phosphates 4. Nitro-Phosphates 5. Bone Meal 6. Basic Slag 7. Rock Phosphate. Fertiliser # 1. Single Superphosphate: Single superphosphate (ordinary superphosphate) is manufactured by mixing equal parts of rock phosphate and sulphuric acid (batch mix process). Phosphate originally present as apatite is […]
Forms of Soil Phosphorus | Soil Fertility | Fertilisers | Agronomy
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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. […]