ORGANIC FARMING

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Information about ORGANIC FARMING
Education

Published on May 24, 2012

Author: nitishranjanprakash

Source: authorstream.com

PowerPoint Presentation: ORGANIC FARMING P otentials & C onstraints PowerPoint Presentation: In traditional India only organic farming was practiced. No chemical fertilizers and pesticides were used. Only organic techniques where natural pesticides and natural manures were obtained from plant and animal products. PowerPoint Presentation: During 1950s and 1960s, the ever increasing population of India lead to a food scarcity. The government was forced to import food grains from foreign countries. And also forced to increase the food grain production of India To increase the food security . PowerPoint Presentation: To increase the food grain production was introduced in 1960’s Under the leadership of M.S. Swaminathan … PowerPoint Presentation: Population, food production and land resources in India Particulars 1981 2000 2050 World population (billion) 5 6.1 9.0 India’s population (billion) 0.7 1.0 1.4 Per capita availability of land (ha) 0.94 0.15 - Food production (million tones) 175 220 330 Per capita availability of food grains (g/day) 395 573 589 Degraded lands (million ha) 145 175 - PowerPoint Presentation: POSITIVE SIDE OF GREEN REVOLUTION Increased the Country’s food production Attained self sufficiency ‘Food deficit’ to ‘food surplus’ Export of food products Higher income PowerPoint Presentation: NEGATIVE SIDE OF GREEN REVOLUTION Reduction in Natural fertility of soil Destruction of soil structure Erosion and soil loss Killing of beneficial microbes and insects Ground water pollution and depletion Atmospheric pollution Soil Salinity / Alkalinity PowerPoint Presentation: With introduction of green revolution, use of chemical fertilizers although contributed 40% of crop production, continuous use of chemicals in agriculture seriously jeopardized the soil health and environment. The scientists have realized that the ‘Green Revolution’ with high input use has reached a plateau and is now sustained with diminishing return of falling dividends. So to maintain the natural balance we have to search another alternative method. PowerPoint Presentation: One of the alternative method is FARMING PowerPoint Presentation: What is Organic Farming? Organic farming is the production of crops and livestock without the use of synthetic chemicals and inorganic fertilizers. PowerPoint Presentation: BENEFITS Sustainable agricultural production, Restoration of soil fertility, Production of quality foods, Avoidance of pollution of soil, Water and air including low cost technology. PowerPoint Presentation: Supply of nutrients Nutrients are applied through organic manures including FYM, Compost, Dung of various animals, Poultry manure, Green manure and Crop residues in farm fields. PowerPoint Presentation: SUPPLY OF NUTRIENTS THROUGH ORGANIC MANURES NITROGEN - N- fixing legumes, animal wastes and by products. PHOSPHORUS - Organic manures – release organic acids – act as chelating agent- P fixation reduced.. POTASSIUM - Organic manures – cation exchange capacity . MICRO NUTRIENTS - Organic manures- release organic acids - It act as a chelating agent - increase the availability of micronutrients such as Ca , Mg, S, Mn , Cu and Zn. PowerPoint Presentation: ENVIRONMENT- FRIENTLY PRACTICES by using organic and natural pesticides like neem to control pests and diseases without harming the environment. ensure that water stays clean and safe. It reduces the pollution of ground water. LOWER GROWING COST : use resources which the farmer already has, so the farmer needs less money to buy farm inputs. Organic farming is MORE SUSTAINABLE compared to chemical farming. PowerPoint Presentation: SOIL FERTILITY AND PRODUCTIVITY Organic matter binds the soil particles and form soil aggregates. Organic matter increases soil colour, infiltration and percolation rate, water holding capacity. Organic matter reduces cohesion, stickiness, soil erosion . It increases the microbial activity of the soil. PowerPoint Presentation: DISADVANTAGES OF ORGANIC FARMING LOWER PRODUCTIVITY An organic farm cannot produce as much yield as a conventional or industrialized farm. REQUIRES SKILL An organic farmer requires greater understanding of his crop PowerPoint Presentation: COST OF PRODUCTION IS HIGH Example: In rice blanket recommendation of FYM is 12.5 tonnes /ha or fertilizer recommendation is 150:50:50 kg NPK / ha. Cost of FYM Cost of Fertilizers Cost of FYM / ton = Rs.500/- For 12.5 tonnes = Rs.6250/- Urea = 326 kg * Rs.5/- = Rs.1630/- SSP = 312.5 kg * Rs.3.6/- = Rs.1125/- MOP = 80 kg * Rs.4.76/- = Rs. 380/- Total cost = Rs.3135.8/- PowerPoint Presentation: NUTRIENT STATUS: Organic manures Inorganic manures FYM contains 0.5 – 1.5 % N 0.4 – 0.8 % P 2 O 5 0.5 – 1.9 % K 2 O Urea – 46 % N ammonium nitrate – 32-35 % N Vermicompost contain 1-1.6 % N 0.4 – 1.4 % P 2 O 5 0.2 – 0.8 % K 2 O SSP – 16% P 2 O 5 MOP – 60 % K 2 O K 2 SO 4 - 48 – 52 % K 2 O T he major nutrition's supplied by chemical fertilizer is high and quick as compared to organic manures. PowerPoint Presentation: There is little scientific evidence to prove that organic food is better in quality than conventional food. Pesticides and toxic fertilizers are not used for organic farming. So the organic food is non toxic. But IS IT POSSIBLE TO ADOPT EXCLUSIVE ORGANIC FARMING ? PowerPoint Presentation: For producing exclusive organic foods and marketing we need certification… Organic certification is a certification process for producers of organic food and other organic agricultural products. In some countries, certification is overseen by the government, and commercial use of the term organic is legally restricted. In India, APEDA regulates the certification of organic products as per National Standards for Organic Production. PowerPoint Presentation: P roduction standards N o human sewage sludge fertilizer used in cultivation of plants or feed of animals. Avoidance of synthetic chemical inputs not on the National List of Allowed and Prohibited Substances. Farmland free from synthetic chemicals for a number of years. M aintaining strict physical separation of organic products from non-certified products; U ndergoing periodic on-site inspections . PowerPoint Presentation: MISCONCEPTIONS ABOUT ORGANIC FARMING No nutritional difference between organic and inorganic food. Organic farming increases the risk of food poisoning. Some natural pesticides used in organic farming have been proven to have harmful effects on health . In tropical developing countries mineralization of organic matter is too quick . There are not enough sources in the world to provide enough nutrients for today’s food crops. PowerPoint Presentation: EXCLUSIVE ORGANIC FARMING EXCLUSIVE CHEMICAL FARMING ADVANTAGES : Higher Nitrogen fixation Nitrogen reduced High microbe activity Reduced microbes Less loss of nutritions High Nutrition loss Sustainable Unsustainable The natural pesticides such as neem are non-toxic. Pests and diseases become more difficult to control as they become resistant to artificial pesticides and also toxic. PowerPoint Presentation: EXCLUSIVE ORGANIC FARMING EXCLUSIVE CHEMICAL FARMING DISADVANTAGES : Slow release of nutrients. Nutritions Efficiently available Cost of production high Cost of production low Low productivity High productivity Sources are less available Easily available Need skilled labours No need of skilled labours Transport and application of organic manures is difficult. It becomes easy for transport and application. PowerPoint Presentation: ORGANIC FARMING AND CHEMICAL FARMING Both having it’s own advantages and disadvantages… Now it becomes a great debatable question whether to use organic or inorganic farming. With the increase in population our compulsion would be not only to stabilize agricultural production but to increase it further in sustainable manner. PowerPoint Presentation: So the final conclusion is to practice combined farming …. A LEADING STEP TO INTEGRATED NUTRIENT MANAGEMENT. Organic farming does not mean going ‘back’ to traditional methods. Many of the farming methods used in the past are still useful today. Organic farming takes the best of these and combines them with modern scientific knowledge. It is better and safe to use 75% intensive farming combined with 25% organic farming.

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