|Subject Domain (in DDC)||Computer science, information & general works ♦ Data processing & computer science|
|Subject Keyword||Espite Doubling ♦ Major Grain Crop ♦ Marginal Land ♦ Annual Crop ♦ Global Population ♦ World Population ♦ Mod-erate Risk ♦ Food Production ♦ Much Land ♦ Nonfood Good ♦ Annual Grain Production ♦ Global Land Area|
|Abstract||espite doubling of yields of major grain crops since the 1950s, more than one in seven people suffer from malnutrition ( 1). Global population is growing; demand for food, especially meat, is increasing; much land most suitable for annual crops is already in use; and produc-tion of nonfood goods (e.g., biofuels) increas-ingly competes with food production for land ( 2). The best lands have soils at low or mod-erate risk of degradation under annual grain production but make up only 12.6 % of global land area (16.5 million km2) ( 3). Supporting more than 50 % of world population is another 43.7 million km2 of marginal lands (33.5 % of|
|Educational Role||Student ♦ Teacher|
|Age Range||above 22 year|
|Education Level||UG and PG ♦ Career/Technical Study|
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