an energy subsidy in an agricultural system is any input that aids productivity but requires the use of energy
major agricultural subsidies
manufacture of nitrate fertilisers
manufacture of pesticides
pumping of irrigation water
fuel for machinery for ploughing, spraying, harvesting
energy for the manufacture of machinery and equipment
heat for drying harvested grain
processing of food for consumers
transport of food to consumers
as agricultural systems have become more productive and more intensive, they have become increasingly dependent on energy subsidies, especially energy from fossil fuels
it may be difficult to maintain or increase food production if abundant energy supplies cannot be maintained