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In agriculture, grain quality depends on the use of the grain.In ethanol production, the chemical composition of grain such as starch content is important, in food and feed manufacturing, properties such as protein, oil and sugar are significant, in the milling industry, soundness is the most important factor to consider when it comes to the quality of grain.
Thus most production of maize, wheat, rice, sorghum, millet, etc. must be held in storage for periods varying from a few days up to more than a year. Storage therefore plays a vital role in grain supply chains. For all grains, storage losses can be considerable but the greatest losses appear to be of maize, particularly in Africa.
Food production per capita since 1961 Grain silos Rice plantation in Thailand Cambodians planting rice, 2004. Agricultural productivity is measured as the ratio of agricultural outputs to inputs. [1] While individual products are usually measured by weight, which is known as crop yield, varying products make measuring overall agricultural ...
The USDA lists the threshold for broken grain to be anything that will fit through a 12/64 and 8/64 inch round-hole sieve for maize and soybeans respectively as listed above. This does not account for any cracks or defects in the leftover grain itself. In 1976, Chowdhury and Buchele developed a Numerical Damage Index for maize. [7]
Maize is grown primarily in North-West, Mpumalanga, Free State, and KwaZulu-Natal provinces. [19] As of the mid-1990s, maize production generated at least 150,000 jobs in years with good rainfall and used almost one-half of the inputs of the modern agricultural sector. [19] As of 2018, South Africa produced 12.5 million tonnes of maize. [18]
Following the famine, the production of tobacco in the affected areas decreased and Maize Control Board prices for maize were increased. The Maize Control Board had purchased just over 7,000 tons if maize in 1948: its successors purchased 30,000 tons in 1964 and 128,000 tons in 1979, showing that Malawi's maize trade was under-developed in 1949.
Intensive agriculture, also known as intensive farming (as opposed to extensive farming), conventional, or industrial agriculture, is a type of agriculture, both of crop plants and of animals, with higher levels of input and output per unit of agricultural land area.
Maize and soybean would decrease with any warming, whereas rice and wheat production might peak at 3 °C (5.4 °F) of warming. [ 88 ] : 453 In 2021, a paper which used an ensemble of 21 climate models estimated that under the most intense climate change scenario used at the time, RCP8.5 , global yields of these four crops would decline by ...