nitrate leaching

Listing 1 - 10 from 27 for nitrate leaching

OSU Extension Service and Agricultural Research Station News
... , protect soil from water and wind erosion, suppress weeds, insect pests and diseases and reduce nitrate leaching to groundwater. Keep your garden healthy with cover crops The season of bounty has arrived ...
extension.oregonstate.edu

OSU Extension Service and Agricultural Research Station News
... , protect soil from water and wind erosion, suppress weeds, insect pests and diseases and reduce nitrate leaching to groundwater. Keep your garden healthy with cover crops The season of bounty has arrived ...
extension.oregonstate.edu More from this site

Scientific Staff - Bonnie Ball Coelho
... Ball Coelho B. R., R. C. Roy and A. J. Bruin. 2004. Nitrate Leaching as Affected by Liquid Swine Manure and Cover Cropping in ... .R. and R.C. Roy. 1999. Enhanced Ammonium Sources to Reduce Nitrate Leaching. Nutrient Cycling in Agroecosystems 54 : 73-80. Swanton C.J., Shrestha ... Coelho B. R., R. C. Roy and A. J. Bruin. 2004. Nitrate Leaching as Affected by Liquid Swine Manure and Cover Cropping in ...
res2.agr.gc.ca

Research Program - Soil and Environmental Sciences
... nitrate concentrations in draining waters to below the drinking water limit of 10 parts per million in systems where N was supplied by inorganic fertilizer. Preliminary results indicate that nitrate leaching ... pre-plant injected on coarse-textured soil to supply no-till corn N requirements, nitrate leaching is no greater than where N is supplied by inorganic fertilizer. Alternative control ...
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RRes - AEN Division - Nutrient Dynamics
... Farm Study shows how, even under Best Management Practice and efficient farming, large amounts of nitrate can be leached to waters from the thin soil over limestone in wet years. Typical ... be optimised for all of these. Applying it to Nitrate Vulnerable Zones (NVZs) suggests that NVZ policies will have little impact on nitrate leaching as farmers optimise their system within the rules. However ...
www.rothamsted.ac.uk

Ethnobotany Garden - "JL Hudson on Seed Germination"
... multi-cycle' germinators, needing several cycles of cold and warm periods. SOAKING, WASHING, or LEACHING: Many seeds contain germination inhibitors which in nature prevent the seed from germinating ... in pots and exposed to outdoor conditions. OTHER TREATMENTS: Soaking seed in potassium nitrate (KNO3), hydrogen peroxide (H2O2), citric acid, sodium hypochlorite (bleach), smoked solution, charred wood ...
ethnobotany.yage.net

EXTOXNET PIP - IMAZALIL
... has been noted in some cases in sensitive individuals [41]. Chronic toxicity: Rats fed imazalil nitrate at dietary levels of up to 0.4 mg/kg/day for 14 weeks were ... risk to groundwater. In a plot where seven applications were made at 14-day intervals, leaching was practically nonexistent and accumulation did not appear to be a problem [42]. Breakdown in ...
extoxnet.orst.edu

FLORA OF NORTH AMERICA - Volume 1, Chapter 2
... potential evapotranspiration, meaning that certain types of chemical weathering are limited. Hence excessive leaching of soluble minerals is prevented. Although many sets of soil-forming processes ... chloride and sulfate anions. Also occurring, in smaller quantities, are potassium, bicarbonates, and nitrate ions, and, even less commonly, borates. Borates have received considerable attention because ...
hua.huh.harvard.edu

Nitrate in Drinking Water, Bulletin 744-87
... nitrate; available commercially as ammonia gas, urea and ammonium-nitrate fertilizer. Leaching - the movement of materials (such as nitrate) down through the soil with water. Methemoglobin - formed by nitrate ...
ohioline.osu.edu

RRes - PPI Division - Nitrification, the conversion of ammonia to nitrate
... Division Nitrification, the conversion of ammonia to nitrate, is an important process in soils: ammonia is less soluble and so less easily lost by leaching, but is also less mobile and ... out by autotrophic ammonia oxidising bacteria. This nitrite is then rapidly oxidised further to nitrate by autotrophic nitrite oxidising bacteria. The autotrophic ammonia oxidizers are difficult to culture, and ...
www.rothamsted.ac.uk

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