Agricultural productivity and their importance
Agricultural productivity is measured as the ratio of agricultural outputs to agricultural inputs. While individual products are usually measured by weight, their varying densities make measuring overall agricultural output difficult. Therefore, output is usually measured as the market value of final output, which excludes intermediate products such as corn feed used in the meat industry. This output value may be compared to many different types of inputs such as labour and land (yield). These are called partial measures of productivity. Agricultural productivity may also be measured by what is termed total factor productivity (TFP). This method of calculating agricultural productivity compares an index of agricultural inputs to an index of outputs. This measure of agricultural productivity was established to remedy the short comings of the partial measures of productivity; notably that it is often hard to identify the factors cause them to change. Changes in TFP are usually attributed to technological improvements.
Agricultural Field view
Sources of agricultural productivity
Crop yields in developing countries are increasing by high yielded hybrid/variety development and management practices. The percentage of growth was fastest in the early rapid growth stage due to positive behaviour and technology adoptation of farmers.
Some sources of agricultural productivity are:
- Mechanization Well soil preparation lead to good crop yield.
- High yield varieties/hybrids, which were the basis of the Green revolution
- Fertilizers: Primary plant nutrients: nitrogen, phosphorus and potassium and secondary nutrients nutrients such as sulfur, zinc, copper, manganese, calcium, magnesium and molybdenum on deficient soil. Type of fertilizers should be used according to soil PH.
- Liming: of acid soils to raise pH and to provide calcium and magnesium
- Irrigation: Timely irrigation schdule lead to good crop productivity
- Herbicides: Weeds used large part of nutrient which cause big losses so for this saving, A chemical used to kill the weeds to attain high crop yield.
- Pesticides: Pest loss the big part of vegetative and fruit. A chemical used to kill the pest is called pesticide.
- Increased plant density: Increasing the plant population increased the vegetative plant yield and fruit yield at some extant.
- Animal feed made more digestible by processing
- Keeping animals indoors in cold weather
Importance of agricultural productivity
The productivity of a region’s farms is important for many reasons. Aside from providing more food, increasing the productivity of farms affects the region’s prospects for growth and competitiveness on the agricultural market, income distribution and savings, and labour migration. An increase in a region’s agricultural productivity implies a more efficient distribution of scarce resources. As farmers adopt new techniques and differences in productivity arise, the more productive farmers benefit from an increase in their welfare while farmers who are not productive enough will exit the market to seek success elsewhere.
A cooperative dairy factory
As a region’s farms become more productive, its comparative advantage in agricultural products increases, which means that it can produce these products at a lower opportunity cost than can other regions. Therefore, the region becomes more competitive on the world market, which means that it can attract more consumers since they are able to buy more of the products offered for the same amount of money.
Increases in agricultural productivity lead also to agricultural growth and can help to alleviate poverty in poor and developing countries, where agriculture often employs the greatest portion of the population. As farms become more productive, the wages earned by those who work in agriculture increase. At the same time, food prices decrease and food supplies become more stable. Labourers therefore have more money to spend on food as well as other products. This also leads to agricultural growth. People see that there is a greater opportunity earn their living by farming and are attracted to agriculture either as owners of farms themselves or as labourers.
However, it is not only the people employed in agriculture who benefit from increases in agricultural productivity. Those employed in other sectors also enjoy lower food prices and a more stable food supply. Their wages may also increase.
Agricultural productivity is becoming increasingly important as the world population continues to grow. India, one of the world’s most populous countries, has taken steps in the past decades to increase its land productivity. Forty eight years ago, North India produced only wheat, but with the advent of the earlier maturing high-yielding wheats and rices, the wheat could be harvested in time to plant rice. This wheat/rice combination is now widely used throughout the Punjab, Haryana, and parts of Uttar Pradesh. The wheat yield of three tons and rice yield of two tons combine for five tons of grain per hectare, helping to feed India’s 1.1 billion people.
Agricultural productivity and sustainable development
Increase in agricultural productivity are often linked with questions about sustainability and sustainable development. Changes in agricultural practices necessarily bring changes in demands on resources. This means that as regions implement measures to increase the productivity of their farm land, they must also find ways to ensure that future generations will also have the resources they will need to live and thrive.
Some essential food products including bread, rice and pasta. For many farmers (especially in non-industrial countries) agricultural productivity may mean much more. A productive farm is one that provides most of the resources necessary for the farmer’s family to live, such as food, fuel, fiber, healing plants, etc. It is a farm which ensures food security as well as a way to sustain the well-being of a community. This implies that a productive farm is also one which is able to ensure proper management of natural resources, such as biodiversity,soil, water, etc. For most farmers, a productive farm would also produce more goods than required for the community in order to allow trade.
Diversity in agricultural production is one key to productivity, as it enables risk management and preserves potentials for adaptation and change. Monoculture is an example of such a nondiverseproduction system. In a monocultural system a farmer may produce only crops, but no livestock, or only livestock and no crop.
The benefits of raising livestock, among others, are that it provides multiple goods, such as food, wool, hides, and transportation. It also has an important value in term of social relationships (such as gifts inweddings). In case of famine, when crops are not sufficient to ensure food safety, livestock can be used as food. Livestock may also provide manure, which can be used to fertilize cultivated soils, which increases soil productivity. On the other hand, in an agricultural system based only on raising livestock, food has to be bought to other farmers, and wastes produced cannot be easily disposed of. Production has many functions, and diversity is the foundation of such production. To ignore the complex functions provided by a farm is thought by many to turn agricultural production into acommodity.
^ Agricultural Investment and Productivity in Developing Countries, FAO Economic And Social Development Paper No. 148, ed. Lydia Zepeda, 2001, FAO Corporate Document Repository, 12 July 2007, http://www.fao.org/docrep/003/X9447E/x9447e00.HTM.
^ Fischer, R. A.; Byerlee, Eric; Edmeades, E. O. “Can Technology Deliver on the Yield Challenge to 2050”. Expert Meeting on How to Feed the World (Food and Agriculture Organization of the United Nations).
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^ http://www.ipni.net/ipniweb/portal.nsf/0/35A687BDB628E999852572050049A51A International Plant Nutrition Institute
^ http://www.tfi.org/ The Fertilizer Institute
^ Mundlak, Yair, “Agricultural Productivity and Economic Policies: Concepts and Measurements,” OECD Working Paper No. 75, OECD Development Center, August 1992, SourceOECD.org, 13 July 2007 http://miranda.sourceoecd.org/vl=4172647/cl=20/nw=1/rpsv/cgi-bin/wppdf?file=5lgsjhvj7g21.pdf (13-16).
^ a b Promoting Pro-Poor Growth: Agriculture, DAC Guidelines and Reference Series, Paris: OECD, 2006, OECD.org, 13 July 2007 http://www.oecd.org/dataoecd/9/60/37922155.pdf (10).
^ Brown, Lester R. Plan B 2.0: Rescuing a Planet Under Stress and a Civilization in Trouble. New York City: Earth Policy Institute, 2006.
^ FUGLIE,Keith O.; MacDONALD, James M. and BALL, Eldon.Productivity Growth in U.S. Agriculture. EB-9, U.S. Dept. of Agriculture (USDA), Econ. Res. Serv. September 2007. Available at: <http://www.ers.usda.gov/publications/EB9/eb9.pdf>. Accessed on: 01 Oct. 2011
- Food and Agriculture Organization of the United Nations – www.fao.org
- OECD Department for Trade and Agriculture: Food, Agriculture and Fisheries
- OECD Agricultural Outlook Database (2006-2015)
Shehzad Ahmad Kang: Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan-38040