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This measure of agricultural productivity was established to remedy the shortcomings 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. [3] Agricultural productivity is an important component of food security. [4]
[5]: 717 Agricultural productivity growth will likely have improved food security for hundreds of millions of people by then. [13] [11] Predictions that reach further into the future (to 2100 and beyond) are rare. There is some concern about the effects on food security from more extreme weather events in future.
A farmer can invest a large amount of money to increase his yields by a few percent, for example with an extremely expensive fertilizer, but if that cost is so high that it does not produce a comparative return on investment, his profits decline, and the higher yield can mean a lower agricultural productivity in this case. A yield is a 'partial ...
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. [1] Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities. While humans started gathering grains at least ...
Climate change will exacerbate current biotic stresses on agricultural plants and animals. [6] Increases of atmospheric carbon dioxide (CO 2), rising temperatures, and altered precipitation patterns will affect agricultural productivity. Increases in temperature coupled with more variable precipitation will reduce productivity of crops, and ...
Land degradation reduces agricultural productivity, leads to biodiversity loss, and can reduce food security as well as water security. [3] [1] It was estimated in 2007 that up to 40% of the world's agricultural land is seriously degraded [4], with the United Nations estimating that the global economy could lose $23 trillion by 2050 through ...
The use of land, water, and energy to grow food often compete with other uses, which can affect food production. [58] Land used for agriculture can be used for urbanization or lost to desertification, salinization or soil erosion due to unsustainable agricultural practices. [58] Crop production is not required for a country to achieve food ...
The impact of agricultural policy on reducing poverty differs across countries and is influenced by a variety of factors, such as the level of government policy support, the degree of public and private investment in agriculture, the different types of agriculture, and the growth rates of agriculture parallel to non-agriculture sectors. [7]