Search results
Results From The WOW.Com Content Network
Cellulosic ethanol is an environmentally friendly and renewable transportation fuel that can be produced from forest biomass. Trees are a particularly promising feedstock because they grow all year round, require vastly less fertiliser and water and contain far more carbohydrates (the chemical precursors of ethanol) than food crops do. [8]
If the non-crop plant is a weed, the combination is called a weedy culture. [16] Grasses and legumes are the most common cover crops. Cover crops are greatly beneficial as they can help prevent soil erosion, physically suppress weeds, improve surface water retention, and, in the case of legumes, provide nitrogen compounds as well. Single ...
Greenhouses allow for greater crop production and also use less water since they are closed systems. [84] Desalination techniques can turn salt water into fresh water which allows greater access to water for areas with a limited supply. [85] This allows the irrigation of crops without decreasing natural fresh water sources. [86]
Distillation and dehydration to produce pure alcohol In 2010, a genetically engineered yeast strain was developed to produce its own cellulose-digesting enzymes. [ 18 ] Assuming this technology can be scaled to industrial levels, it would eliminate one or more steps of cellulolysis, reducing both the time required and costs of production.
Bioethanol is an alcohol made by ... glucose found in plants or other non-food crops to produce biogasoline ... gas requires the least water to produce energy, some ...
Agricultural monocultures refer to the practice of planting one crop species in a field. [15] Monoculture is widely used in intensive farming and in organic farming.In crop monocultures, each plant in a field has the same standardized planting, maintenance, and harvesting requirements resulting in greater yields and lower costs.
In the US, some 80% of the fresh water withdrawn from rivers and groundwater is used to produce food and other agricultural products. [1] Farm water may include water used in the irrigation of crops or the watering of livestock. Its study is called agricultural hydrology. Water is one of the most fundamental parts of the global economy.
Alternate wetting and drying (AWD) is a water management technique, practiced to cultivate irrigated lowland rice with much less water than the usual system of maintaining continuous standing water in the crop field. It is a method of controlled and intermittent irrigation.