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 […]
List of Fertilisers Containing Phosphorus | Soil Fertility | Agronomy
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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. […]
Essential Nutrients: Classification and Functions | Plants | Agronomy
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In this article we will discuss about:- 1. Classification of Essential Nutrients 2. Criteria of Essentiality 3. Functions. Classification of Essential Nutrients: There are 17 essential elements that are required by most plants (Table 6.2). The Big Three: nitrogen, phosphorus and potassium are the primary fertiliser elements used in crop production. Excluding carbon, hydrogen and […]