Search Results - "VAN KESSEL, Chris"
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An agronomic assessment of greenhouse gas emissions from major cereal crops
Published in Global change biology (01-01-2012)“…Agricultural greenhouse gas (GHG) emissions contribute approximately 12% to total global anthropogenic GHG emissions. Cereals (rice, wheat, and maize) are the…”
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Sequestering Soil Organic Carbon: A Nitrogen Dilemma
Published in Environmental science & technology (02-05-2017)Get full text
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Increased greenhouse-gas intensity of rice production under future atmospheric conditions
Published in Nature climate change (01-03-2013)“…Rice cultivation is one of the largest anthropogenic sources of the greenhouse gas methane. Now a meta-analysis shows that increased atmospheric CO 2 (550–743…”
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Lower‐than‐expected CH4 emissions from rice paddies with rising CO2 concentrations
Published in Global change biology (01-04-2020)“…Elevated atmospheric CO2 (eCO2) generally increases carbon input in rice paddy soils and stimulates the growth of methane‐producing microorganisms. Therefore,…”
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Earthworms regulate plant productivity and the efficacy of soil fertility amendments in acid soils of the Colombian Llanos
Published in Soil biology & biochemistry (01-02-2019)“…The Llanos region of Colombia represents one of the last large agricultural frontiers and is undergoing a rapid conversion from naturalized savanna to…”
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Role of Nitrogen Fertilization in Sustaining Organic Matter in Cultivated Soils
Published in Journal of environmental quality (01-11-2011)“…Soil organic matter (SOM) is essential for sustaining food production and maintaining ecosystem services and is a vital resource base for storing C and N. The…”
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Limited potential of harvest index improvement to reduce methane emissions from rice paddies
Published in Global change biology (01-02-2019)“…Rice is a staple food for nearly half of the world's population, but rice paddies constitute a major source of anthropogenic CH4 emissions. Root exudates from…”
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Yield-scaled global warming potential of annual nitrous oxide and methane emissions from continuously flooded rice in response to nitrogen input
Published in Agriculture, ecosystems & environment (01-09-2013)“…•Annual yield-scaled GWP of water-seeded rice assessed in on-farm study.•Nonlinear increase in seasonal N2O emissions in response to N rate observed.•Seasonal…”
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Interactions between plant growth and soil nutrient cycling under elevated CO₂: a meta-analysis
Published in Global change biology (01-11-2006)“…free air carbon dioxide enrichment (FACE) and open top chamber (OTC) studies are valuable tools for evaluating the impact of elevated atmospheric CO₂ on…”
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relationship between carbon input, aggregation, and soil organic carbon stabilization in sustainable cropping systems
Published in Soil Science Society of America journal (01-07-2005)“…One of our current challenges is to quantify the mechanisms, capacity, and longevity of C stabilization in agricultural lands. The objectives of this study…”
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Predicting nitrate leaching loss in temperate rainfed cereal crops: relative importance of management and environmental drivers
Published in Environmental research letters (01-06-2022)“…Abstract Nitrate (NO 3 ) leaching from agriculture represents the primary source of groundwater contamination and freshwater ecosystem degradation. At the…”
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Optimal Fertilizer Nitrogen Rates and Yield‐Scaled Global Warming Potential in Drill Seeded Rice
Published in Journal of environmental quality (01-11-2013)“…Drill seeded rice (Oryza sativa L.) is the dominant rice cultivation practice in the United States. Although drill seeded systems can lead to significant CH4…”
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Response to the Letter to the Editor Regarding Our Viewpoint “Sequestering Soil Organic Carbon: A Nitrogen Dilemma”
Published in Environmental science & technology (17-10-2017)Get full text
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Acid fumigation of soils to remove carbonates prior to total organic carbon or CARBON‐13 isotopic analysis
Published in Soil Science Society of America journal (01-11-2001)“…The use of 13C natural abundance (δ13C) to follow C input to soil has gained widespread acceptance. However, inorganic C present in the soil as carbonates will…”
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Crop residue retention enhances soil properties and nitrogen cycling in smallholder maize systems of Chiapas, Mexico
Published in Applied soil ecology : a section of Agriculture, ecosystems & environment (01-07-2016)“…•Maize residue retention enhanced soil aggregation and fungal PLFA biomarkers.•Crop residue retention increased fertilizer N recovery by 41% in the soil-crop…”
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When Does Nitrate Become a Risk for Humans?
Published in Journal of environmental quality (01-03-2008)“…Is nitrate harmful to humans? Are the current limits for nitrate concentration in drinking water justified by science? There is substantial disagreement among…”
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Element interactions limit soil carbon storage
Published in Proceedings of the National Academy of Sciences - PNAS (25-04-2006)“…Rising levels of atmospheric CO2 are thought to increase C sinks in terrestrial ecosystems. The potential of these sinks to mitigate CO2 emissions, however,…”
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Residual Effects of Fertilization History Increase Nitrous Oxide Emissions from Zero‐N Controls: Implications for Estimating Fertilizer‐Induced Emission Factors
Published in Journal of environmental quality (01-09-2016)“…Agricultural N fertilization is the dominant driver of increasing atmospheric nitrous oxide (N2O) concentrations over the past half‐century, yet there is…”
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Nitrogen and potassium fertility impacts on aggregate sheath spot disease and yields of rice [Oryza sativa]
Published in Plant production science (2008)“…Aggregate sheath spot (AgSS), a disease caused by Rhizoctonia oryzae-sativae, is one of the major rice (Oryza sativa L.) diseases in California. A three year…”
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ALS Inhibitor–Resistant Smallflower Umbrella Sedge (Cyperus difformis) Seed Germination Requires Fewer Growing Degree Days and Lower Soil Moisture
Published in Weed science (01-01-2020)“…The repetitive use of ALS inhibitors for smallflower umbrella sedge (Cyperus difformis L.) control has selected for herbicide-resistant (R) populations that…”
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