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| Filter results3 paper(s) found. |
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1. Irrigated Small Grain Residue Management Effects on Soil Properties and Nutrient CyclingThe effects of straw removal from irrigated wheat and barley fields on soil properties and nutrient cycling is a concern due to its potential impact on the sustainability of agricultural production. The demand for animal bedding and the potential development of cellulosic ethanol production will likely increase straw demand in the future. Previous reviews addressing changes in soil properties when crop residues are removed focused primarily on rain-fed systems. This paper reviews published research... D. Tarkalson, B. Brown, D. Bjorneberg, H. Kok |
2. Soil Greenhouse Gas Dynamics in Response to Dairy Manure Compost in an Almond OrchardApplication of dairy manure compost in soils under almond production may confer benefits such as increased carbon sequestration, improved crop nutrient use efficiency, and reduction of greenhouse gas emissions. Elucidating the mechanisms of greenhouse gas emissions and mitigation is a primary concern in the management of agricultural soils and it is directly linked to nutrient management. Presently, agricultural soils account for 11.2% of U.S. greenhouse gas emissions. Of particular concern is... A. Coyotl, J. Murch, S.S. Khalsa, W.R. Horwath |
3. Effectiveness of Kitchen Compost in Germinating Tomato and LettuceFood waste in developed countries is a large input to landfills. Ideally, it is composted and added to soil on-site to reduce environmental impacts. A “kitchen composter” (ReencleTM) effectively decomposes waste within 24 hours (>90% reduction in mass), followed by formation of stable compost within a few weeks after curing outside the composter. Our preliminary research demonstrates that the compost has excellent nutrient composition. However, it was not adequately cured,... B. Hopkins, R. Kerr, S.V. Nelson |