reduce crop yield News

  • Crop yields stall in China, India

    China and India, the world's two most populous countries, are beset by stagnation in the production of staples like rice, wheat, soybean and maize (corn), says a new study on crop yield growth. Based on statistics from around the world during the 1951– 2008 period, the study 'Recent patterns of crop yield growth and stagnation', says that for some crops in China and India the spatial extent ...


    By SciDev.Net

  • Neonicotinoids: may reduce crop yields by poisoning insects that eat slug pests

    Beetles that are helpful to farmers can be poisoned if they feed on slugs that have eaten crops treated with neonicotinoids, a new study reports. The slugs themselves are not harmed by neonicotinoids. In American field trials, researchers found that plots planted with neonicotinoid-treated soybeans contained more slugs, fewer beetle predators and had 5% lower yields. The insecticide may be ...

  • 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 ...

  • Soil organisms aid crop productivity by increasing yields

    Soil-living bacteria and fungi can be used to boost crop yields by more than 50 per cent without the use of fertilizers, an international research project has found. In combination with fertilizers, yields of key crops such as beans, can more than double, the scientists from seven countries discovered. The findings, the result of an international effort to unravel the mysteries of so-called ...

  • Improve crop yield by removing manure solids

    Manure has long been used as a crop fertilizer, but the challenge of finding an efficient use of the nutrients found in manure is ever present. The ratio of nitrogen to phosphorus in manure is low in relation to the nutrient needs of most crops. Therefore, crops tend to be overloaded with manure to meet the nitrogen requirement of agricultural crops, but the excess phosphorus from the process can ...

  • 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 ...

  • Cover crops reduce erosion, runoff

    Cover crops may be more effective at reducing soil erosion and runoff after maize harvest than rough tillage, according to scientists from the Université Catholique de Louvain, in collaboration with the Independent Center for the Promotion of Forage (CIPF). The three-year study, supervised by Charles Bielders and conducted by Eric Laloy, measured erosion and runoff losses from silt loam ...

  • 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 ...

  • Using GPS sensors to economize on irrigation while increasing crop yields

    Domosys Corporation, a leading provider of Power Line Communication (PLC) technology, has announced that Lindsay Corporation, a leading provider of irrigation systems and infrastructure products, has selected Domosys’ PowerBus™ RHINO Technology to significantly improve its irrigation systems. Lindsay’s irrigation system, also called a center pivot, uses Domosys’ PLC technology and products to ...


    By Lindsay Corporation

  • Patches of flowers boost pollinator diversity and lead to higher crop yields

    Falling levels of insect pollination are causing declining yields of important agricultural crops. However, new research from South Africa now indicates that planting small patches of native flowers in agricultural fields can be a profitable and sustainable method of increasing pollination and yield. Insect pollination is a vital ecosystem service as animal-pollinated crops form an ...

  • Brick kiln emissions affect crop yields, study finds

    Hydrogen fluoride emissions from brick kilns have been found to damage trees and crops in new studies conducted by an international team of scientists in the Peshawar area of northern Pakistan. Peshawar has 450 brick kilns and hydrogen fluoride is also released by factories making aluminium, ceramics, and ...


    By SciDev.Net

  • Banana compost could boost crop yields, a study finds

    Using old banana trees to make compost may help boost crop yields while cutting down water and fertiliser use, according to an Egyptian researcher. Banana-based fertiliser could cut about 20 per cent of the water used in irrigating maize and lead to better yields and improved soil properties — such as availability of ...


    By SciDev.Net

  • Satellite data plus conservation equals better crop yields

    Combining remote sensing technology  with water and soil conservation techniques can help raise crop yields in South Asia, scientists have reported. Satellite data can help identify specific problems on farmlands ...


    By SciDev.Net

  • Target the crop not the soil - to reduce fertiliser use

    Feed the crop not the soil’ is the message of a new review into sustainable phosphorus use. Currently, phosphorus fertiliser is applied to the soil, and plants then take it up through the roots. However, more precise nutrient management is needed on farms, the researchers say, so that the phosphorus is targeted at the crop just as it needs it. Modern agriculture is dependent on phosphorus, ...

  • 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 ...

  • Soil biodiversity reduces nitrogen pollution and improves crops’ nutrient uptake

    Increased soil biodiversity can reduce nitrogen pollution, improve nutrient uptake by plants and even increase crop yields, new research suggests. The two-year study found that levels of nitrogen leaching from soil with an abundant soil life were nearly 25% lower than for soil with a reduced level of soil life. Practices which enhance soil biodiversity such as reduced tilling, crop rotation and ...

  • 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 ...

  • Weather extremes slash cereal yields

    Climate change may have already begun to take its toll of agriculture. New research suggests that drought and extreme heat in the last 50 years have reduced cereal production by up to 10%. And, for once, developed nations may have sustained greater losses than developing nations. Researchers have been warning for years that ...


    By Climate News Network

  • 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 ...

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