Energy

Agriculture has deep relation to energy. For example, energy sources of machines of agriculture, pesticides and manures are almost fossil fuel. Today, this is a serious problem. The quantity of  fossil fuel is reducing. If we can't use fossil fuel, agriculture, that is, our eating life is badly influenced.

Kind of consumption of the fossil fuel

 The modern mechanized agriculture depends on the fossil fuel by two methods. We use it as fuel directly at a farm and use it indirectly in a process preparing a thing to use at a farm. As direct consumption, we use gas and the electricity for dryers, pumps, heaters, air conditioners as well as the use them as fuel and the lubricant of the agricultural machine. The energy that a farmhouse of the United States of America used directly until 2002 is approximately 1.2 exa- Joule, and this is a little over 1% of all energy consumption of America.
 The indirect consumption is mainly oil and natural gas used for manure and the production of the pesticide . (the energy used for the production of the agricultural machine is a kind of the indirect consumption, but it is not included in statistics of the United States of America Department of Agriculture.) In the United States, the direct and indirect energy used by agriculture accounts for overall approximately 2% . However, the direct and indirect energy used by agriculture gradually tends to decrease in United States.


Oil shortage！

 Using fossil fuel in conjunction with agriculture most is to use natural gas to get hydrogen of raw materials when I make artificial manure with the harbor bosh method . Because natural gas is the cheapest as raw materials of hydrogen, natural gas is used for this method. If oil decreases, natural gas comes to be used as the substitute temporarily, and natural gas becomes more expensive concerning supply and demand. If other raw materials of  hydrogen are not found, the production of the artificial manure by the harbor bosh method comes to cost highly and acquisition of the artificial manure becomes difficult. Then  food price suddenly soars and may become the global food crisis.
  A switch to organic farming is considered as oil shortage measures. insecticides, weed killers and artificial manures which are petrochemical products are not used in organic farming. There is the farming family who demonstrated that amount of production does not decrease by a modern organic farming. However, the organic farming needs the shifts of the work force from the city to the district.
 The method that we make biocharcoal and synthetic fuel from waste in a farm village and use as fuel is suggested. Because synthetic fuel can be produced and used on the spot, it can supply the fuel which is enough for the organic farming .
 The development of the genetically-modified crops which amount of production does not decrease even if there is little manure is pushed forward. However, as for the genetically-modified crops, a question was presented by ecologists and  economists, and a report that "The genetically-modified crops were were failure in both the environment aspect and the economic aspect. " was published in January, 2008.