Sentences with phrase «reduced yield of crops»

Sure enough, the list was a dire roll call, including lower snowfall and streamflow, reduced yield of crops, and increased wildfires.

Not exact matches

«I was told it's not only going to reduce the use of toxic chemicals, but crops will fertilize themselves, produce high yields and make famine a thing of the past because the crops will be resistant to stress, cold, drought and heat.

With the global population rising continuously, urbanization rapidly reducing land for farming, and climate change threatening stable crop production, a significant improvement in genetic yield potential is one of the most crucial goals in rice research.

As in many other crop species, genetically modified (GM) varieties of sugarcane are forecast to improve profitability by reducing input costs, increasing sucrose yield or introducing novel products.

Further promoted advantages and promises by the industry include that RR crops create more yield than conventional crops, decrease farmers input costs by reducing the amount of herbicides sprayed and are safe for humans, animals and the environment.

NEBRASKA CITY, Nebraska, Aug 20 (Reuters)- The Pro Farmer Midwest Crop Tour on Tuesday projected Nebraska's average corn yield at 154.9 bushels per acre, up from a drought - reduced 131.8 bpa last year and the tour's three - year average of 147.9 bpa for the country's No. 3 corn producing state.

The US has long embraced genetic modification as a means of improving the nutritional profile of food, reducing the need for large quantities of pesticide and increasing crop yield.

This can have a dramatic impact on crops by reducing their yields and can endanger some species of plant altogether.

If successful, they envision being able to reduce the need for chemical fertilizers and enhance soil carbon uptake, thus improving the long - term viability of the land, while at the same time increasing crop yields.

In a further setback to reducing U.S. carbon emissions, the U.S Environmental Protection Agency has proposed lowering the U.S. government's «social cost» of carbon, or the estimated cost of sea - level rise, lower crop yields, and other climate - change related economic damages, from $ 42 per ton by 2020 to a low of $ 1 per ton.

Crop science researchers at the University of Illinois interested in determining and reducing corn yield gaps are addressing this important issue by taking a systematic approach to the problem.

The petition, which is the first organized by individual scientists in support of GM technology, yielded more than 1,400 signatures from plant science experts supporting the American Society of Plant Biologists» (ASPB) position statement on genetically modified (GM) crops, which states that they are «an effective tool for advancing food security and reducing the negative environmental impacts of agriculture.»

Drought is the most important cause of reduced plant growth and crop yield, which makes insights into a plant's drought response highly valuable to agriculture.

Adam Davis, a researcher with the U.S. Department of Agriculture Agricultural Research Service and a professor of crop sciences at the U. of I., reported at a recent agricultural conference that Palmer amaranth can reduce soybean yields by 78 percent and corn yields by 91 percent.

They found that both mitigation scenarios should increase yields for all crops compared to the business - as - usual scenario, including cotton and forage, and that the more ambitious scenario has the potential to reduce the number of water - stressed basins.

«For susceptible crop varieties, this sort of damage could reduce yield.

Genetically modified crops that produce the pest - killing toxin Bt increase yields and reduce the use of noxious chemical insecticides.

This is a serious problem as the predicted increase in frequency of extreme climate episodes will lead to multiple drought conditions during crop growth which in turn will reduce the yield of wheat, one of the world's most important foods.

Adding moderate amounts increases crop yields and stabilizes soils while reducing the need to throw huge quantities in landfills or holding ponds, said Yuncong Li, University of Florida professor of soil and water sciences.

The new analysis found that conventional crops such as corn had the highest yield of biomass that can be turned into biofuel on marginal lands, although their ability to reduce CO2 is harmed by tilling, fertilizing and other CO2 - producing activities necessary to turn them into fuel.

The project therefore represents one of the most plausible approaches to enhancing crop yield and increasing resilience in the face of reduced land area, decreased use of fertilizers and less predictable supplies of water.

However, more atmospheric CO2 is predicted to increase crop biomass and subsequent yields, and reduce water use by allowing plant stomates to open over shorter periods, thus assimilating the same amount of atmospheric CO2 while conserving moisture (Cutforth et al. 2007).

These biodegradable particles could be the basis for reduced risk conventional pesticide products that have the potential to reduce the amount of chemicals used in plant protection by as much as 90 percent, save farmers more than 25 percent on pest - control initiatives and, in a world facing looming food shortages, help increase crop yields for more and better food.

The Department of Agriculture and IRRI launched the Rice Crop Manager (RCM), a free mobile phone service that allows Filipino farmers and extension workers easy access to information to help reduce fertilizer waste and ensure rice crops have enough nutrients to reach their yield potential.This program is available in five local languages — Bicolano, Ilokano, Cebuano, Hiligaynon, and Tagalog.

We are at a remarkable juncture where (i) the price of oil and nitrogen - based fertilizers is expected to increase, (ii) the long term availability of phosphorus for fertilizers is in doubt, (iii) the erosion of soil is reducing yields, and (iv) climate change brings extreme weather that impacts crop survival and productivity.

At the same time, other research shows that increased heat will be detrimental to many domesticated cereal crops, plus it will promote increased loss of soil moisture, both of which will promote reduced crop yields.

Model projections suggest that although increased temperature and decreased soil moisture will act to reduce global crop yields by 2050, the direct fertilization effect of rising carbon dioxide concentration -LRB-[CO2]-RRB- will offset these losses.

For instance the site profiles, Tony Vidler of Australia, who promoted a microbial - based natural nitrogen, which can product a 20 % better yield of tomato crops with a reduced chemical use.

Late onset and early winter ending will reduce the length of growing season for crops which will complete their biological life quickly causing reduction in yields as plants will gain accelerated maturity without reaching proper height and size.

«Sharp rise in temperature will cause forced maturity of grains as a result neither grains will attain their proper size or weight nor will they accumulate optimum levels of starch thereby reducing the grain yield; pollination in banana, another important crop of the Indus delta, will be affected due to early winter and high spring temperatures.

The report says rising sea levels and the increasing frequency and intensity of extreme weather events such as typhoons and floods — all the result of global warming — are claiming lives, destroying or damaging homes and infrastructure, reducing crop yields, and ruining employment prospects.

Better use of chemical fertilisers could improve crop yields while reducing emissions of nitrous oxide, a greenhouse gas 300 times more potent than carbon dioxide.

For more on recent precipitation Texas, Kansas, Colorado, and Oklahoma; crop yields; cattle issues; and meat prices, check out Bloomberg's coverage of this story: Worst Texas Drought in 44 Years Damaging Wheat Crop, Reducing Cattle Hecrop yields; cattle issues; and meat prices, check out Bloomberg's coverage of this story: Worst Texas Drought in 44 Years Damaging Wheat Crop, Reducing Cattle HeCrop, Reducing Cattle Herds.

Springtime cold air outbreaks (at least two consecutive days during which the daily average surface air temperature is below 95 % of the simulated average wintertime surface air temperature) are projected to continue to occur throughout this century.19 As a result, increased productivity of some crops due to higher temperatures, longer growing seasons, and elevated CO2 concentrations could be offset by increased freeze damage.20 Heat waves during pollination of field crops such as corn and soybean also reduce yields (Figure 18.3).4 Wetter springs may reduce crop yields and profits, 21 especially if growers are forced to switch to late - planted, shorter - season varieties.

Advances in plant science could help increase yields while at the same time reducing the use of fertiliser and pesticides - though the use of genetic modification to generate more suitable crop varieties remains controversial.

Observational data, evidence from field experiments, and quantitative modeling are the evidence base of the negative effects of extreme weather events on crop yield: early spring heat waves followed by normal frost events have been shown to decimate Midwest fruit crops; heat waves during flowering, pollination, and grain filling have been shown to significantly reduce corn and wheat yields; more variable and intense spring rainfall has delayed spring planting in some years and can be expected to increase erosion and runoff; and floods have led to crop losses.4, 5,6,7

The fact is that if we can't greatly reduce fossil fuel use by the 2030 - 2040 range, by 2075 be will see a global average temperature rise of 3.5 to 4.0 degrees Celsius, which is also just about the time frame for world phosphate supplies to enter critical shortages that will eventually cut crop yields in half and require twice as much land and water to grow the same yield as previously.

52 • Immune system suppression Natural Capital Degradation Effects of Ozone Depletion Human Health • Worse sunburn • More eye cataracts • More skin cancers • Immune system suppression Food and Forests • Reduced yields for some crops • Reduced seafood supplies from reduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton • Disrupted aquatic food webs from reduced phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoReduced yields for some crops • Reduced seafood supplies from reduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton • Disrupted aquatic food webs from reduced phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoReduced seafood supplies from reduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton • Disrupted aquatic food webs from reduced phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoreduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton • Disrupted aquatic food webs from reduced phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoReduced population of surface phytoplankton • Disrupted aquatic food webs from reduced phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoreduced phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratosphere.

Observed data and many studies indicate that a warming climate has a negative effect to crop production, generally reduce yields of staple cereals such as wheat, rice and maize, which, however, differs between regions and latitudes.

In particular, in the European Mediterranean region, increases in the frequency of extreme climate events during specific crop development stages (e.g., heat stress during flowering period, rainy days during sowing time), together with higher rainfall intensity and longer dry spells, are likely to reduce the yield of summer crops (e.g., sunflower).

In addition to direct crop damage from increasingly intense precipitation events, wet springs can delay planting for grain and vegetables in New York, for example, and subsequently delay harvest dates and reduce yields.67 This is an issue for agriculture nationally, 65 but is particularly acute for the Northeast, where heavy rainfall events have increased more than in any other region of the country (Ch.

If, just over a year ago, had you proposed a film to Brian Cox, which took issue with the claims that climate change would massively reduce crop yields in Africa, or that the hundreds of millions of people living beneath the Himalayas face chronic water shortages as a result of glacial recession, you would, in his view, be a «maverick».

Another alleged exaggeration of AR4 was that climate change could reduce crop yields in parts of Africa by up to 50 percent.

Pakistan's crop yields were reduced because of floods.

«Replacing the native vegetation by sown pastures or crops might increase the meat yield and reduce the carbon footprint but generates negative impacts on the use of nutrients, pesticide contamination, soil erosion and use of fossil fuels,» said Modernel.

The authors find that, without adaptation, projected corn, rice and wheat production is reduced when areas experience 2.0 °C or more of local warming and that crop - level adaptations are projected to be able to increase yields when compared to similar scenarios that do not utilize adaptation.

60 • Immune system suppression Natural Capital Degradation Effects of Ozone Depletion Human Health • Worse sunburn • More eye cataracts • More skin cancers • Immune system suppression Food and Forests • Reduced yields for some crops • Reduced seafood supplies from reduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoReduced yields for some crops • Reduced seafood supplies from reduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoReduced seafood supplies from reduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoreduced phytoplankton • Decreased forest productivity for UV - sensitive tree species Wildlife • Increased eye cataracts in some species • Decreased population of aquatic species sensitive to UV radiation • Reduced population of surface phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratoReduced population of surface phytoplankton Figure 20.21 Natural capital degradation: expected effects of decreased levels of ozone in the stratosphere.

C / If global temperatures decline and through stupidity after some way is found to limit and reduce CO2, global CO2 levels are reduced through the efforts of activist climate science establishment then the world will go hungry as the world's farmers will not be able to grow enough food as both yields and cropped area are reduced due to cooler or colder temperatures and reduced amounts of that essential plant food, CO2 other wise known as that planet destroying «carbon».

Texas produces 55 % of the U.S. crop and two - thirds of America's yield is exported to mills in China, Mexico, Vietnam and Thailand, where textile manufacturers drove prices down by reducing their stockpiles hoping to see a glut on the market and hence lower cotton prices, Miller says.

The report says that draining rice paddies in mid-season and using different fertilizers can reduce methane emissions, while switching to more heat - tolerant varieties of rice can offset crop yield declines.