Sentences with phrase «on crop yield from»

Drawing from a new schematic of crop yield response under historical / current and future climate developed by the co-author David Lobell from Stanford University, they were able to determine the impact on crop yield from five management practices.

Not exact matches

In particular, «agricultural commodities are supported by the dynamics of water shortages in Asia and the Western United States, the declining payback from the green revolution in terms of improving crop yields and the increasing demand from Asia for a diet based more on grains and meat as the population becomes wealthier,» the group responded by e-mail.

Eighty - eight of those small satellites were the property of Planet; with these eyes on the sky, along with the 50 they already had in orbit, the company promises its customers high - resolution images of the Earth for everything from crop yield monitoring to aiding first responders with real - time images of natural disasters.

Concern over future food and nutritional security is rapidly rising on the global agenda amidst studies showing crop yields are far from increasing at the rates needed to meet projected demands for 2050.

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.

«Higher temperatures and changes in precipitation result in pressure on yields from important crops in much of the world,» says IFPRI agricultural economist Gerald Nelson, an author of the report, «Climate Change, Agriculture, and Food Security: Impacts and Costs of Adaptation to 2050».

DeLaune said previous field studies from the Rolling Plains and adjacent High Plains demonstrated mixed results, with some showing a reduction in soil moisture and cash crop yield due to cover crops and others indicating no significant impact of cover crops on subsequent fiber yield.

The two DSSAT crop modules were evaluated using measured data on soil water and crop yield from four treatments: irrigated cotton without a cover crop, irrigated cotton with winter wheat as a cover crop, dryland cotton without a cover crop, and dryland cotton with a winter wheat cover crop at the Texas A&M AgriLife Research Station at Chillicothe from 2011 to 2015.

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.»

U.S. secretary of agriculture Ed Schafer called on participants at the summit to consider the use of biotechnology to grow crops with higher yields that are capable of resisting assaults from inclement weather, disease or pests.

Previous studies on switchgrass plots suggested that ethanol made from the plant would yield anywhere from 343 % to 700 % of the energy put into growing the crop and processing it into biofuel.

Sumit Singh, 14, from India, has an entry centered on increasing crop yields through vertical multilevel farming.

The problem is the crop yields then vary widely from year to year, depending on the rain.

This study shows that although miscanthus yield was slightly lower on marginal, low - quality land, a farmer would have an economic incentive to grow miscanthus on the lower quality land first rather than diverting their most productive cropland from growing corn,» said University of Illinois agricultural economist Madhu Khanna who co-authored the study along with a team of economists and environmental and crop scientists from the Energy Biosciences Institute at U of I.

This book provides comprehensive, current scientific and applied practical knowledge on vegetable grafting, a method gaining considerable interest that is used to protect crops from soil - borne diseases, abiotic stress and to enhance growth / yield.

(2010) Impact of crop yield reduction on greenhouse gas emissions from compensatory cultivation of pasture and forested land.

Rising greenhouse gases caused rains to return to the region south of the Sahara, from Senegal to Sudan, boosting crop yields since the 1990s and helping the population to feed itself without relying on foreign donations.

Many crop yields are predicted to decline due to the combined effects of changes in rainfall, severe weather events, and increasing competition from weeds and pests on crop plants (Ch.

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

'' Peru's 2013/14 crop was raised 121,000 tons to a record 2.16 million tons based on information from the U.S. Agricultural Office in Lima reporting a record yield»

Based on measurements of ecosystem CO2 flux, radiation absorption by plants, crop yields and a model simulating the terrestrial biosphere, a multinational team of researchers has found that during July and August 2003, 500 million tonnes of carbon escaped from the forests and fields across Europe as a result of extreme heat and drought.

Based on statistics from around the world during the 1951 — 2008 period, the study «Recent patterns of crop yield growth and [continue reading...]

Comment (2 - 13): The Southeastern Legal Foundation provides the following reaction to the African rain - fed agriculture projection, which appeared in the Sunday Times (Leake, 2010a) and comes from former IPCC chair Robert Watson: «Any such projection [pertaining to African crop yields] should be based on peer - reviewed literature from computer modeling of how agricultural yields would respond to climate change.

Comment (2 - 11): Referring to an analysis published by Ben Pile, co-editor of the blog climateresistance.org on the blog of Roger Pielke, Jr. (Pile, 2010), the Southeastern Legal Foundation states that the primary reference supporting the IPCC's statement on African crop yields «Vulnerability of North African Countries to Climatic Changes» (Agoumi, 2003) was from IISD, an advocacy group.

Furthermore, the Southeastern Legal Foundation's portrayal of findings on climate and crop yields from the National Communications of Morocco, Tunisia, and Algeria derived from Richard North's blog is not complete.

Depending on nitrogen carryover from previous management, additional fertilizer may be required beyond that provided through cover crop mineralization to maximize corn yield.

Climate tools that manage for drought Project updates Researchers blazing a trail on extreme heat predictions Improving regional forecasts for rainfall and temperature From heat stress to frost risk: Recent research into Australia's climate Multi-week forecast maps on the way Weather forecasts may help reduce greenhouse gas emissions from nitrogen fertiliser App update to provide access to drought and crop yield analysis Onwards and upwards for Managing Climate VariabiFrom heat stress to frost risk: Recent research into Australia's climate Multi-week forecast maps on the way Weather forecasts may help reduce greenhouse gas emissions from nitrogen fertiliser App update to provide access to drought and crop yield analysis Onwards and upwards for Managing Climate Variabifrom nitrogen fertiliser App update to provide access to drought and crop yield analysis Onwards and upwards for Managing Climate Variability

Among the economic costs climate change is expected to enact on the United States over the next 25 years are: $ 35 million in annual property losses from hurricanes and other coastal storms, $ 12 billion a year as a result of heat wave - driven demand for electricity, and tens of billions of dollars from the corn and wheat industry due to a 14 percent drop in crop yields.

Now a team from Germany has analysed the literature on drivers of this yield variability with a view to improving crop models.

Farmers growing crops from apples to zucchini have long relied on wild pollinators — including various bee species, birds and bats — to fertilize plants and increase yields.

While a recent report tells us current droughts in the western USA hardly make the top ten, we have this from Stanford University, a claim about drought related crop insurance claims that doesn't seem to match data on national yields and trend.

Cash cropping farmers - those who grow grain to sell on the open market - are accustomed to dealing with reduced yields caused by an unsteady climate, for example; or from insect

And more recently Almuth Ernsting revisited the biochar issue, arguing that research on everything from positive impacts on crop yields to long - term soil carbon sequestration was questionable at best:

Those who say that increased CO2 will increase agricultural productivity are ignoring the effects of highly variable weather on crop yields; this summer's heat wave was estimated to reduce corn yields by 10 - 20 % as I recall from news reports from the Midwest.

The researchers, from the Tyndall Centre for Climate Change Research (University of East Anglia, Norwich), Grantham Research Institute on Climate Change and the Environment (London School of Economics and Political Science, London), and Global Environmental and Climate Change Centre (McGill University, Montreal), arrived at their results using the global crop model PEGASUS to simulate crop yield responses to 72 climate change scenarios spanning the 21st century.

These are incorporated based upon prior work using (1) the surface ozone response to methane emissions changes from two global composition - climate models, (2) the impact of ozone on yields of four staple crops, wheat, maize, soy and rice, based on the methodology of Van Dingenen et al. (2009), and (3) their valuation using world market prices, as described in Shindell et al. (2012a).

KEY ACHIEVEMENTS • Formulated an organic pesticide, the use of which resulted in high organic content and crop yield • Saved 23 farm animals from an impending disease (discovered on the adjacent farmland) by quickly isolating and vaccinating them • Devised a novel irrigation system to provide water to all crop lines, without the use of sophisticated and expensive machinery • Suggested using the age old method of hand seeding, resulting in increased crop growth

The lawsuit was based on a brochure that the buyer had received from the Brokerage which allegedly misrepresented the crop yields on the property.