Sentences with phrase «as crop residue»

To reduce methane, a greenhouse gas over 20 times more potent than carbon dioxide, farmers in California and the Mid-South implemented a variety of groundbreaking voluntary conservation practices that included alternate wetting and drying and early drainage of their fields as well as crop residue management.

Using so - called second - generation technologies to convert material such as crop residues into bioenergy has a role to play and avoids competition for land.

Not exact matches

It is also approved for crops that don't retain high levels of pesticide residue as they grow.

Instead of plowing, farmers leave crop residue on fields after the harvest where it acts as a mulch to protect soil from erosion and a source of organic matter.

Tropical Traditions has a ZERO tolerance level for GMOs, herbicides, and pesticides, and since the USDA National Organic Program (NOP) allows small residue amounts of pesticides and herbicides approved by the EPA for conventional crops to be present in USDA Organic certified products, we knew that we had to develop our own standards to both use in purchasing products directly from producers, as well as to educate our consumers on our own values and standards.

Crop contamination from these residues represents a major challenge for organic — as well as for our whole food system.

At a USDA research station near Amarillo, Tex., scientists are compiling data that encourage Funk and other farmers to use low - or no - till techniques (such as leaving crop residue to decompose), says Nolan Clark, station director and an agricultural engineer.

While Olesen looks at the technical potential of various technologies for utilizing crop residues and manure as bioenergy sources, social scientists and economists study social constraints on such mitigation measures, such as profitability and the mindset of farmers.

Fortunately, there are ways to remove crop residues for use as biofuels while increasing soil fertility.

Growing corn continuously under conventional tillage and with high inputs of water and fertilizer may seem outmoded, but this management system is «not uncommon,» as demand for corn grain and crop residues grow, Blanco says.

As it stands, such cellulosic biorefineries get their materials either from the residue of conventional crops, such as corn stover, or from harvesting treeAs it stands, such cellulosic biorefineries get their materials either from the residue of conventional crops, such as corn stover, or from harvesting treeas corn stover, or from harvesting trees.

Resource - conserving cropping practices from WHEAT, such as more targeted use of nitrogen fertilizers or sowing wheat into untilled soils and crop residues, can raise wheat farmers» incomes while curbing greenhouse gas emissions, if widely adopted, he added.

Spinach samples had an average of twice as much pesticide residue by weight than any other crop.

I've been slowly trying to transition our family to organic fabrics in our clothing and bedding as much as possible after finding out that cotton is one of the dirtiest crops, sprayed with large amounts of pesticides and herbicides during its cultivation and residue of these chemicals remain in finished textile products.

The reality is far worse as most of these vegetable oils are highly processed and grown as GMO crops, loaded with toxic herbicide residues like Roundup.

The exception is fermented soy, which I'll explain more about later and even worse GMO soy that is contaminated with large pesticide residues as the reason it is GMO is so they can spray the potent toxic herbicide Roundup on them to improve crop production by killing the weeds.

Some of these toxic effects are observed at low, realistic doses that could be found as residues in food and feed crops and in drinking water.

This is mainly because the extremely complex international industrial food system has internal problems such as nutrient - deficient soils and crops, along with agrichemical and animal drug residues that call for entirely different, ecologically sound, sustainable and humane farming practices.

As trees disappeared, straw and other crop residues were used for cooking fuel.

RCP4.5 also employed updated historical data series by calibrating to the year 2000 consensus emissions inventories from Lamarque et al. (2010), and the HYDE crop and pasture land use history (Klein Goldewijk et al. 2010) as well as implementing a new representation of residue biomass supply (Gregg and Smith 2010).

Because so little energy is required to cultivate crops such as switchgrass for cellulosic ethanol production, and because electricity can be co-produced using the residues of such cellulosic fuel production, reductions in greenhouse gas emissions for celluslosic ethanol when compared to gasoline are greater than 100 per cent.

During a 10 - year investigation detailed in the latest issue of the Journal of Geophysical Research, Stanford University scientist Mark Jacobson isolated the widespread warming effects from all sources of soot â $» the visible residue of burned wood, crops, oil, biomass and other fuels â $» from the climate impacts caused by greenhouse gases such as carbon dioxide and methane.

First, biological wastes such as residues of crop products, trimmings from harvested trees, and carbon dioxide emitted from fuel wood or fossil fuel combustion are all included within Ecological Footprint accounts.

Bioenergy refers to sources of energy (electricity and solid, liquid, or gaseous fuels) derived from biomass: plant - or animal - based materials such as crops, crop residues, trees, animal fats, by - products, and wastes.

Other studies of nearly decarbonizing the power sector by mid-century show that more efficient, advanced biopower technologies using low - carbon feedstocks, such as agricultural residues and energy crops, could provide a modest contribution of up to 15 percent of U.S. electricity generation (NREL 2012, UCS 2013).

In addition, technological developments are expected to increase future interest in more efficient «second generation» liquid biofuels, which are not derived from food crops, but from plant materials such as agricultural residues, forestry residues, and wood from forest plantations.

These «biorefineries» will convert widely available, inexpensive, organic materials such as agricultural residues, high - content biomass crops, wood residues, and cellulose in municipal solid wastes into ethanol.

• Spinach samples had an average of twice as much pesticide residue by weight than any other crop.

These «biorefineries» will convert widely available, inexpensive, organic materials such as agricultural residues, high - content biomass crops, wood residues, and cellulose in municipal solid wastes into valuable and renewable end products.