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- Schreiner, R.P.
- Plant and soil 2005 v.276 no.1-2 pp. 219
- Vitis vinifera; grapes; mature plants; roots; root growth; rooting; plant nutrition; mycorrhizal fungi; vesicular arbuscular mycorrhizae; microbial colonization; spatial variation; temporal variation; soil nutrients; nutrient availability; soil water; climate change; soil-plant interactions; Oregon
- ... The spatial and temporal development of grapevine roots and associated mycorrhizal fungi was studied in 1999 and 2000 in a 21-year-old, Pinot Noir (Vitis vinifera L.) vineyard located on a Jory soil (Palehumult, silty clay loam) in Oregon, USA. The density of woody roots and fine (primary) roots deemed to be physiologically active (based on color and cellular integrity) were determined at monthly ...
- Liu, X.J.; Mosier, A.R.; Halvorson, A.D.; Zhang, F.S.
- Plant and soil 2005 v.276 no.1-2 pp. 235
- soil air; nitrous oxide; nitric oxide; gas emissions; no-tillage; conventional tillage; nitrogen fertilizers; fertilizer application; agricultural soils; irrigated soils; Zea mays; corn; continuous cropping; air temperature; soil temperature; seasonal variation; Colorado
- ... A 2-year study was conducted to investigate the potential of no-till cropping systems to reduce N2O and NO emissions under different N application rates in an irrigated corn field in northeastern Colorado. Flux measurements were begun in the spring of 2003, using vented (N2O) and dynamic (NO) chambers, one to three times per week, year round, within plots that were cropped continuously to corn (Ze ...