After reading this article you will learn about phosphate retention and fixation in soil. Kaolinite has a strong affinity for phosphate anions. Phosphate anions can be attracted to soil constituent with the force strong enough to make them insoluble and difficulty available to plant roots. Tisdale and Nelson (1975) have differentiated phosphate retention from phosphate fixation by the fact in [...]
After reading this article you will learn about the pH of soil and factors affecting it. pH of Soil: When soils contain more hydrogen ions than hydroxyl ions, they are acidic in reaction. If they contain more hydroxyl ions than hydrogen ions, they are alkaline in reaction. If they contain equal number of hydrogen and hydroxyl ions, they are neutral [...]
After reading this article you will learn about:- 1. Nature of Irrigation Water 2. Harmful Effect of Poor Quality of Irrigation Water 3. Criteria for Suitability of Irrigation Water 4. Improvement in the Quality. Nature of Irrigation Water: In arid regions of India, i.e. Uttar Pradesh, Haryana, Punjab, Rajasthan, Gujarat etc. water available for irrigation usually contains soluble salts which [...]