what are the trends and challenges in production of food crops? (what…
what are the trends and challenges in production of food crops?
trend in production of food crops (rice and wheat) from 1960s
increased intensity of production and supply
what factors affect the intensity of food production and supply?
demand and capital; trade
purpose of farming; commercial and subsistence
soils and drainage
Green Revolution through use of high-yielding varieties, irrigation, mechanisation, fertilisers and pesticides
how has the production of crops changed since 1960s
food chain (linkages between consumers, producers and distributors)
what are the effects of continuing intensification of food production? (challenges associated with intensification of production of crops from 1960s
effects of use of irrigation and chemicals on water and soil quality (salinisation, eutrophication)
why do food shortages occur?
soaring cost of fertilisers and transport
conversion of farmland to industrial crop production to produce biofuel crops
rising demand for meat and dairy products from emerging economies like India and China
pests (such as locusts)
inadequate logistics of food distribution and storage
rapid population growth
lack of accessibility