After reading this article you will learn about the importance of potassium in the growth of plants. Next to nitrogen, potassium is the mineral nutrient required in the largest amount by plants. The potassium requirement for optimum plant growth is in the range of 2-5 per cent of the vegetative parts fleshy fruits and tubers of plants (oven dry basis). [...]
This article throws light upon the three main forms of potassium in soils. The forms are: 1. Soil Solution Potassium 2. Exchangeable Potassium 3. Non-Exchangeable and Mineral Form of Potassium. Form # 1. Soil Solution Potassium: It is recognised as the readily available form of potassium to the plants. The potassium availability in soils is controlled not only by the [...]
After reading this article you will learn about:- 1. Forms of Calcium (Ca) 2. Sources and Distribution of Ca 3. Behaviour 4. Leaching Losses 5. Plant Factors 6. Deficiency and Disorders 7. Fertilizers Containing Calcium. Forms of Calcium (Ca): 1. Forms Taken up by Plants: Calcium is absorbed by plants as its Ca2+ ion. However, such absorption takes place from [...]