crop yield calculation News

  • Warming Threatens to cut Crop Yields

    Projecting the impact of climate change on global food production is no easy task. A warming climate might result in better crop yields in one region, but cause drought and crop failure in another. A new US study, published in the journal Environmental ...


    By Climate News Network

  • Warming threatens to cut crop yields

    Projecting the impact of climate change on global food production is no easy task. A warming climate might result in better crop yields in one region, but cause drought and crop failure in another. A new US study, published in the journal Environmental Letters, assesses the odds of a major slowdown in global food production over the next 20 years. Overall, the study’s authors say, the ...


    By GLOBE Foundation

  • In-crop nitrogen key to summer sorghum yields

    With the summer cropping season on our doorstep, growers are weighing up their planting options against the market, seasonal conditions and gross margin calculations. For many the summer cropping rotation will include sorghum and maximising crop yield and profitability will be a key driver of all pre-plant and in-crop agronomic decisions. Recent research funded by the GRDC, Queensland Alliance ...

  • Application for the calculation of C02 balance in olive farming

    We now have evidence that, when the appropriate agricultural practices are applied, the carbon sink effect (or carbon sequestration) of olive trees through the biomass and soil is much greater than the greenhouse gas emissions for one production unit (one litre of virgin olive oil). According to Environmental Product Declarations for olive oil and published research, on average 1.5 kg of CO2e is ...

  • Counting the cost of ozone pollution on crops

    A recent study has calculated crop losses as a result of surface ozone pollution. The study suggests that future earnings will be significantly reduced by ozone damage to crops, especially for some developing and agriculture-dependent countries. Surface ozone is an air pollutant that forms as a result of chemical reactions between other pollutants, particularly emissions from motor vehicles and ...

  • ‘The best ways to increase yields are not necessarily high-tech’

    According to Ernst van den Ende and Sjaak Bakker “Whatever the local conditions may be, Wageningen UR can contribute to the sustainable intensification of agriculture anywhere in the world,” says Ernst van den Ende, general director of Wageningen UR Plant Sciences Group. “Our starting point is improving existing systems rather than simply introducing the latest ...

  • Crop performance matters when evaluating GHGs

    Measuring the emission of greenhouse gases from croplands should take into account the crops themselves. That’s the conclusion of a study in the September-October issue of the Journal of Environmental Quality, which examined the impact of farm practices such as tillage on the greenhouse gas, nitrous oxide (N2O). Expressing emissions per unit of crop yield rather than on a more conventional ...

  • Corn out earns energy crops—for now

    Corn stover is the most profitable cellulosic biofuel feedstock on cropland in the Great Lakes Region at current prices. For perennial biomass crops to earn farmers more than corn, prices or yields would have to change. At biomass prices of US$110–US$130 per metric ton or yield gains of 50–60%, poplar, switchgrass, and mixed grasses would become attractive. If prices of expensive U.S. miscanthus ...

  • China`s clever water use boosts food yields

    China produces more food for the same amount of water than other countries in Africa and Asia, researchers have found. The report, completed by Li Baoguo and colleagues from the China Agricultural University, found that China produces 1–1.5 kilograms of wheat and corn per cubic metre of water, compared with Ethiopia's 0.1–0.2 kilograms, India's 0.2–0.7 and Kazakhstan's 0.2–0.3. The researchers ...


    By SciDev.Net

  • How much water is needed to grow bioenergy crops?

    A Dutch study has assessed the water requirements of 13 bioenergy crops across the world. The findings could help select the best crops and locations to produce bioenergy. The EU climate action and renewable energy package has set a target of increasing the share of renewable energy to 20 per cent of energy used by 20201. This includes a minimum 10 per cent share for transport, which could ...

  • Pakistan needs a new crop forecasting system

    Pakistan's outdated crop yield forecasting system needs a revamp, says Ibrar ul Hassan Akhtar. Like most developing countries, Pakistan is staring at the spectre of food insecurity, with its food production out of sync with population growth. The food availability scenario is further ...


    By SciDev.Net

  • Crop management to reduce biofuels` carbon debt

    It is widely considered that using biofuels produces less greenhouse gas (GHG) emissions than using fossil fuels. However, there are concerns that the possible effects of land use change (LUC) may outweigh these benefits. New research looks at the effects of sustainable crop management as a means of reducing the negative impacts of LUC. Biofuels form an important part of the EU's strategy for ...

  • Rise in CO2 could restrict growing days for crops

    The positive consequences of climate change may not be so positive. Although plants in the colder regions are expected to thrive as average global temperatures rise, even this benefit could be limited. Some tropical regions could lose up to 200 growing days a year, and more than two billion rural people could see their hopes wither on the vine or in the field. Even in temperate zones, there will ...


    By Climate News Network

  • Syria: Poor crop prospects reflect the impact of continued conflict and drought conditions

    Drought conditions combined with continued conflict are adding pressure to an already dire food security situation in the Syrian Arab Republic, raising the prospect of further severe reductions in wheat and barley production in key areas, along with increased food import needs and higher prices for 2014, FAO reports. Wheat and barley are the country’s two most important food crops. The ...

  • Compost made by worms from livestock manure yields benefits when applied to maize

    Vermicomposting livestock manure with maize can increase agricultural benefit by 304%, shows a new study. The combination of increased crop yield and the additional earthworms produced as a result of the process led to a substantial increase in output compared to a traditional composting system. As intensive agriculture and livestock production both increase, unique problems emerge. Heavy use of ...

  • Halving EU meat and dairy consumption yields lower pollution and land use, and better health

    Halving meat and dairy consumption in Europe could reduce agricultural greenhouse-gas emissions by up to 42% and nitrogen pollution by 40%, new research suggests. The amount of land needed to grow food for each EU citizen would fall from 0.23 to 0.17 hectares and the reduced intake of saturated fats and red meat could have substantial health benefits, the researchers conclude. The Roadmap to a ...

  • Insect-eating bats save global maize farmers €0.91 billion a year from crop damage

    Insect-eating bats are estimated to be worth US$ 1 billion (€0.91 billion) a year to maize farmers around the world, a new study has revealed. Not only do bats reduce crop damage by eating adult corn earworm crop pests, they also suppress fungal infections in maize ears. Bats and their habitats need to be better protected for their ecological and economic contributions, say the study’s ...

  • U.N. Clean Development Mechanism Approves Arcadia Biosciences Methodology, Links Carbon Credits to Crop Genetic Improvements for First Time

    Arcadia Biosciences, Inc., an agricultural technology company focused on developing technologies and products that benefit the environment and human health, today announced that the Executive Board of the Clean Development Mechanism (CDM) of the United Nations Framework Convention on Climate Change has approved Arcadia’s methodology to allow farmers to earn carbon credits from reduced ...


    By Arcadia Biosciences, Inc.

  • How much water is used for irrigation in European agriculture?

    Agriculture plays a large role in the management of water in the EU. However, there is little consistent information on water use in irrigation. New EU supported research has estimated how much water is used for irrigation in European countries, providing a framework to analyse agricultural pressures on water quantity. Water scarcity is an increasing problem in the EU and the situation is ...

  • Rapid action needed to help protect food supplies in vulnerable regions

    Agriculture is vulnerable to climate change, and in order to protect food security, food production will have to adapt to rising temperatures and unpredictable changes in rainfall. Agriculture in poorer countries with harsh climate conditions is likely to be most affected. New research predicts how these vulnerable areas are likely to be affected by climate change in the next 20 years. The ...

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