crop yield modeling News

  • Yield projections for Switchgrass as a Biofuel Crop

    While scientists have conducted numerous studies on production of biomass from biofuel crops, such as switchgrass, no one has yet compiled this information to evaluate the response of biomass yield to soils, climate, and crop management across the United States. A team of researchers from Oak Ridge National Laboratory and Dartmouth College published just such a study in the July-August 2010 ...

  • 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

  • Crop models help increase yield per unit of water used

    Crop water use efficiency (WUE, or yield per unit of water used), also known as crop water productivity, can be improved through irrigation management and methods, including deficit irrigation (irrigating less than is required for maximum yields) and supplemental irrigation (irrigating to supplement precipitation so as to avoid crop failure or severe yield decline). Thus, WUE is key for ...


    By ScienceDaily

  • Herbicide reduction can preserve crop yields as well as biodiversity benefits of weeds

    Pesticide-sparing approaches to farming do not have to compromise on crop yields, new research suggests. A study that explored the impact of reduced herbicide use across a variety of different farming contexts found that herbicideefficient systems could be just as productive as conventional systems — and more so than organic systems — whilst having other important environmental ...

  • New Discovery Will Enhance Yield and Quality of Cereal and Bioenergy Crops

    A team of scientists led by Thomas Brutnell, Ph.D., director of the Enterprise Rent-A-Car Institute for Renewable ...

  • Agricultural ammonia emissions could be reduced without affecting crop yield

    Ammonia released by nitrogen fertilisers in Spanish agriculture could be reduced by up to 82% with only a very minimal impact on crop yield, finds new research. This could be achieved by combining optimised management of manure with the use of non-urea synthetic fertilisers. Agriculture accounted for almost 94% of total European atmospheric emissions of ammonia in 2011. The main sources of these ...

  • Population has bigger effect than climate change on crop yields, study suggests

    Population pressure will be as significant a factor as climate change in reducing crop yields — and thus increasing food insecurity — in West Africa, according to a modelling study. The authors inserted different ...


    By SciDev.Net

  • Strategic organic matter throughput helps to build soil carbon and boost crop yields

    Potential improvement in crop yields and reduced greenhouse gas emissions were among the benefits of increased soil organic matter throughput according to the findings of a project funded by growers and the Australian Government through the Grains Research and Development Corporation (GRDC) and the Victorian Department of Primary Industries (DPI). The relationships between organic matter inputs ...

  • High-yield crops have curbed agricultural land expansion, but care needed to avoid negative biodiversity effects

    The widespread use of higher-yielding improved varieties of crops as part of the Green Revolution’ has averted the conversion of between 18 to 27 million hectares of forests, woodlands and pastures in the period 1965 to 2004, according to a recent study. However, its authors caution that the relationship between these crops and land use change is complex, and good governance is needed to ...

  • Cereal Crops Feeling the Heat

    LIVERMORE, California (ENS) - Warming temperatures since 1981 have caused annual losses of about US$5 billion for six major cereal crops, new research has found. This is the first study to estimate how much global food production already has been affected by climate change. From 1981 to 2002, fields of wheat, corn and barley throughout the world have produced a combined 40 million ...

  • New report finds green investments in South Africa could spur growth and jobs while enhancing crop yields, water supplies and land restoration

    Improving the management of natural resources and investing in the environment could increase South Africa’s crop yields by almost a quarter, create 170,000 additional jobs, and significantly increase the availability of water, compared to current practices. These are among the key findings of a new report released today by South Africa’s Minister of Water and Environmental Affairs ...

  • Rice yields targetted in first CGIAR `mega-programme`

    Farmers could benefit from increased rice yields and new varieties of the staple crop adapted to climate change, with the launch of a global research programme that aims to lift millions out of hunger and poverty by 2035. The Global Rice Science Partnership (GRiSP) was launched by the Consultative Group on International Agriculture Research (CGIAR) at the 3rd International Rice Congress in Hanoi, ...


    By SciDev.Net

  • 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 ...

  • Improving wheat yields for global food security

    With the world’s population set to reach 8.9 billion by 2050, CSIRO scientists are hunting down and exploiting a number of wheat’s key genetic traits in a bid to substantially boost its grain yield. The rate of wheat-yield improvement achievable through conventional plant breeding and genetic engineering alone is not fast enough to compete with a rapidly growing global ...

  • CSIRO and Bayer to focus on sustainable crops

    This collaboration will develop and apply models to assess the system-wide consequences of new-generation cereal crops in the face of global environmental and food security challenges. The project will assess the full environmental impact of the crops, including their influence on the carbon footprint of cereal production. This program will build on a long-term cereal research agreement between ...

  • Reality check for `miracle` biofuel crop

    The hardy jatropha tree as a biofuel source may not be the panacea for smallholders that some have claimed, say Miyuki Iiyama and James Onchieku. It sounds too good to be true: a biofuel crop that grows on semi-arid lands and degraded soils, replaces fossil fuels in developing countries and brings huge injections of cash to poor smallholders. That is what some are claiming for Jatropha curcas, ...


    By SciDev.Net

  • Microbes `cheaper, fairer` for boosting yields than GM

    Adapting microbes that dramatically increase crop yields while reducing demand for fertilisers and pesticides through selective breeding or genetic engineering could be cheaper and more flexible than genetically modifying plants themselves, says an author of a report. Microbes, such as beneficial bacteria, fungi and viruses, could be ...


    By SciDev.Net

  • Mobile app for rain forecasts raising farmers’ yields

    A mobile phone-based innovation that can predict rain is helping farmers in six Sub-Saharan Africa countries sow, fertilise and harvest crops at the optimum time. The innovation is being used in Cote d'Ivoire, ...


    By SciDev.Net

  • Biodiesel Crop of the Week: Pongamia Pinnata

    Pongamia is an ancient tree that is native to India. It is frost tolerant, but not freeze-proof. It is also happens to be a legume, which is at the heart of what makes the business model so interesting. The tree yields a generous annual nut crop that is harvested with conventional shakers, such as those used by almond and other nut growers. That seed has approximately a 40 percent oil content ...


    By Advanced Biofuel Center

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