Millions more people are exempt because regulations exclude agricultural income from taxes, no matter how much is earned.
Moreover, some 70% of farming households derive most of their income from non-agricultural activities.
Developers therefore favour onshore projects, and farmers, driven by falling agricultural incomes to look for new sources of income, are happy to oblige.
Previous work has offered income, education, low levels of agricultural labour (which is replaced by more mentally stimulating jobs), climate (the challenge of surviving cold weather might provoke the evolution of intelligence) and even distance from humanity's African homeland (novel environments could encourage greater intelligence) as explanations for national differences in IQ.
Within the initiative of Joint Programme targeted at creation of new income generation opportunities and promotion of improved agricultural practices, 24 rural farmers and dehkhans (small farmers) in target areas were selected to form a network of agriculture extension agents (rural consultants) responsible for provision of consultancy services to rural population and solutions to the problems they might face in application of new agricultural practices.
Agricultural growth is one of the best ways to generate income for the poorest, who need the most help buying nutritious food.
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These discriminatory practices are especially common in the agricultural and textile sectors, which are the sources of income for many of the poorest people on earth.
As well as providing a greener alternative to fossil fuels, biodiesel could also utilize more than 1.3 billion tons of waste produced by the American agricultural industry each year and provide a new source of income for farmers.
Historical trends show that demand for agricultural products like corn, poultry, pork and beef increases with per capita income, especially in India, Russia and China.
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The OECD said its analysis showed agricultural tariffs and price support mechanisms "do a poor job" of providing income support for farm families, encouraging sustainable economic development, maintaining healthy rural communities, or protecting the environment.
Monsanto released its third quarter earnings before the bell on Wednesday, aggressively growing their net income and raising its guidance sending bullish signals on the state of the global agricultural market.
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On a return trip to Rwanda last week, we saw ample evidence in Kigali: a new and fully-leased 20-story skyscraper, tower cranes that punctuate the skyline, and shiny metal roofs in rural areas that attest to growing household income. (Rwanda raised one million people out of poverty between 2006 and 2011.) Agricultural cooperatives improve efficiency and productivity.
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