By Anil Mahajan
India’s rice and wheat vegetation are in main issue – a perilous scenario for a country the place seventy five according to cent of the inhabitants relies on agriculture for a dwelling. Today’s falling or static yields in those key vegetation were the results of the intensification of agriculture from the Sixties on. That so-called ‘Green Revolution’, which depended seriously on chemical fertilizers and insecticides, observed crop construction continue velocity with inhabitants progress till the tip of the final millennium. this day, even if, the sphere is struggling with depleted soils and diminished flooring water degrees. previous excesses have even left the present new release of farmers with overall healthiness hazards.
The authors of this quantity, specialists in agriculture and agronomy within the subcontinent, say a brand new method is required. India’s inhabitants will upward thrust from today’s 1.18 billion humans to as many as 1.5 billion through 2020, with 25 in line with cent extra mouths to feed. not just that, yet agriculture’s pre-eminent position within the country’s economic system, the place it really is 18 according to cent of overall GDP and the most important unmarried export region, make any challenge within the one in every of nationwide importance.
Other countries in Asia, together with Pakistan, Nepal, China and Bangladesh, have already famous the matter of static yields and feature built the idea that of the ‘Integrated Nutrient administration’ (INM) approach. Its target is to make agricultural cropping sustainable by way of keeping or bettering the soil caliber whereas leaving room for raises in yields, and it advocates the balanced use of either natural and inorganic methodologies.
Mahajan and Gupta, either hugely skilled specialists within the technological know-how of agriculture, and in Gupta’s case a number one environmentalist, research intimately India’s cropping drawback in addition to the prospective treatments. They finish that the INM process is an integral part of any answer. The publication additionally delineates capability assets of natural plant food and bio-fertilizers in India, and analyzes the rice-wheat cropping process and the function INM may play in maintaining crop productiveness. The authors additionally supply perception into the balanced use of plant foodstuff in expanding rice and wheat productiveness and in regards to the potent use of fertilizers and water administration practices for rice and wheat vegetation. Constraints within the adoption of INM procedure and destiny examine thoughts are the opposite an important themes that are coated during this complete text.
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Additional resources for Integrated Nutrient Management (INM) in a Sustainable Rice—Wheat Cropping System
Study Questions 1. Define the following: (a) Integrated nutrient management system (b) Long-term fertilizer experiments (c) Cereals (d) Pulses (e) Oilseeds (f) Soil health (g) Trap crops (h) Desertification (i) Ecosystem (j) Amelioration (k) Mixed cropping (l) Intercropping (m) Pesticides (n) Crop productivity 2. Explain integrated nutrient management system and differentiate it from organic farming. 3. What is the basic concept underlying integrated nutrient management system? 4. What are the aims and principles underlying integrated nutrient management system?
5 Principles Underlying INM System Six basic principles of sustainable INM system laid out by Dennis Greenland (quoted by Meelu, 1996) include: 1. 2. 3. 4. 5. 6. Nutrients removed by crops must be returned to the soil. Soil physical conditions should be maintained and upgraded. Organic carbon levels of soils should be maintained and enhanced. Build-up of abiotic stress should be minimal. Degradation of land occurring due to soil erosion must be controlled. Soil quality with respect to soil acidity, salinity and sodicity or toxic elements build-up must be minimized.
Moreover, it brings economy and efficiency into fertilizer use and positively affects the physical, chemical and biological properties of soil. , 2003). In other words, it takes into account all the factors of soil and crop management, including management of all inputs such as water, agrochemicals, nutrients, etc. 7 Advantages of INM System INM system is the key to enhance soil productivity and its sustainability. It not only aims at supplying plant nutrients in balanced form, but also lowers the dependency on fossil fuels used in the manufacture of chemical fertilizers.