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Energy efficiency in agriculture improvement [4] is defined as the decrease of primary energy consumption for the production of a unit of agricultural product (expressed in weight or volume units), within the farm boundaries.
Energy crops can also be grown to boost gas yields where feedstocks have a low energy content, such as manures and spoiled grain. It is estimated that the energy yield presently of bioenergy crops converted via silage to methane is about 2 GWh/km 2 (1.8 × 10 10 BTU/sq mi) annually. Small mixed cropping enterprises with animals can use a ...
Also, a Certified Farm Energy Audit may be required for participation in state or federal energy efficiency programs. [20] An audit of 20 farms in Cumbria showed savings could be made in all areas examined. [21] An example of a farm energy audit in Maine is at the following reference. [22] Maryland has a statewide program entitled EnSave. [23]
As of 2015 farm-raised Atlantic salmon had a commodified feed supply with four main suppliers, and an FCR of around 1. [31] Tilapia is about 1.5, [32] and as of 2013 farmed catfish had a FCR of about 1. [8] It is possible for fish to have an FCR below 1 despite obvious energy losses in feed-to-meat conversion.
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.
Agriculture encompasses crop and livestock production, aquaculture, and forestry for food and non-food products. [1] Agriculture was a key factor in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in the cities. While humans started gathering grains at least ...
Extensive farming can have the following problems: [3] Yields tend to be much lower than with intensive farming in the short term. Large land requirements limit the habitat of wild species (in some cases, even very low stocking rates can be dangerous), as is the case with intensive farming. Less profitable then intensive farming per unit of area.
The grain trade refers to the local and international trade in cereals such as wheat, barley, maize, and rice, and other food grains.Grain is an important trade item because it is easily stored and transported with limited spoilage, unlike other agricultural products.