Integarted nutrient management
- 1. Integrated Nutrient Management For Resource Utilization And Productivity
- 2. INTRODUCTION Integrated Nutrient Management is the maintenance or adjustment of soil fertility and plant nutrient supply at an optimum level to sustain the desired crop productivity. This is done through optimization of the benefits from all possible sources of plant nutrients in an integrated manner. In other words, integrated nutrient management is the use of different sources of plant nutrients integrated to check nutrient depletion and maintain soil health and crop productivity.
- 3. Goals of INM The Goals of Integrated Nutrient Management are to: Optimize plant production: Yield/ quality Profit Conserve resources Enhance soil quality and productivity.
- 4. Why is INM needed? The increasing use of chemical fertilizers to increase the production of food and fibre is causing concern for the following reasons: Soils which receive plant nutrients only through chemical fertilizers are showing declining productivity despite being supplied with sufficient nutrients. The decline in productivity can be attributed to the appearance of deficiency in secondary and micronutrients. The physical condition of the soil is deteriorated as a result of long term use of chemical fertilizers, especially the nitrogenous ones.
- 5. How INM differs from conventional farming? In conventional farming, people gave more emphasis on grain yield through use of chemical fertilizers ,use of high yielding varieties and chemical pesticides . In INM it integrates/combines the objectives of production with ecology and environment, that is, optimum crop nutrition, optimum functioning of the soil health, and minimum nutrient losses or other adverse effect on the environment.
- 6. Advantages of INM Enhances the availability of applied as well as native soil nutrients Improves and sustains the physical, chemical and biological functioning of soil Synchronizes the nutrient demand of the crop with nutrient supply from native and applied sources
- 7. Components of INM On-site resource generation Mobilisation of off-site nutrient resources Resources integration Resources management
- 8. Sources of INM Organic Sources: Farmyard manure Vermicompost Poultry manure Inorganic Sources: Single super phosphate Potassium chloride Micronutrient fertilizer
- 9. CONCLUSION INM helps to maintain productivity, profitability and quality of the crops and soil. It is found that the effect of biofertilizer along with farmyard manure in combination with INM gives the highest yield in many field crops. It has also been found that INM was successful in different types of soil.
- 10. REFERENCES Singh, D., Dashora, L. 2009. Influence of integrated nutrient management on productivity of sugarcane(Saccharum officinarum) in southern Rajasthan. Indian Journal of Agricultural Sciences 79(11) : 931-3. Mondal, S., Chettri, M. 1998. Integrated nutrient management for sustaining productivity and fertility under rice (Oryza sativa) based cropping system. Indian Journal of Agricultural Sciences 68(7) : 337-40. Verma, S., Singh, H., Saxena, R. 2013. Relative performance of Sesame (Sesamum indicum) under integrated nutrient management. Indian Journal of Agricultural Sciences 83 (3): 143-9.