Soil Fertility and Nutrient Management

Soil Fertility and Nutrient Management
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Soil Fertility and Nutrient Management

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Publisher: Agrotech Publications
ISBN: 9788183213394
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PREFACE Most of the time, the average person treats the soil like dirt . A wise farmer rancher will care for the soil because the knows that man is dependent on the top 6 inches 15.2 centimetres of soil. In this plant-animal-soil continuum, soil is often neglected because it does not indicate stress in an obvious way. Animals and plants show physical symptoms but the soil must be looked at more carefully to monitor good health. All plants are dependent on favourable combination of five environmental factors light, heat, air, nutrients, and water. Since the dawn of agriculture, farmers have well understood this general concept. They sow their crops in locations with sufficient sunlight and at the time of the year when temperatures allow growth to maturity. They try to historical overview of fertility either through irrigation of by predicting rainfall. They have also been aware of the importance of nutritional supplements. The need is well-recognized for the efficient and integrated use of mineral fertilizers and other sources of plant nutrients, like organic materials, biologically fixed atmospheric nitrogen, etc., In order to achieve self-sufficiency in food production in developing countries. Soils feed the plants which in turn feed the animals that feed us. Including soil in this important chain will help guarantee its success. Soil provides the supper of foundation for plants and most of the nutrients. Soil is accumulated decomposing plant and animal matter with aging parent material . As the soil components break down, elements are released and become available to plants as nutrients. However, naturally this process takes a long time and the soil will only be a result of the parent material, climate, those living organisms once living there, topography, and time. So what is made available to plant at a certain time may not be exactly, needed nutrients. Fertilizing wisely increases yield, quality nitrogen content and digestibility , and profits.
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Soil Fertility and Nutrient Management
The role of fertilizer in increasing food grain production has been very evident, particularly during the last six decades. It is recognized that fertilizers have so far accounted for more than 50 percent of the increase in crop yields. Trials and demonstrations conducted by scientists all over the world clearly indicate the impact of fertilizer use on food grain yields per unit of land, and it is also event that crop yields are higher in countries with higher fertilizer consumption per unit area. In common with all living beings, plants need food for their growth and development. Man and other animals can only subsist on food in organic form, that is, on food derived from plant of animal products. Plants on the other hand have the