nitrogen use efficiency

Listing 1 - 10 from 38 for nitrogen use efficiency

OREP - Increasing Nitrogen Use Efficiency In Corn Production Systems: Quantifying Effects Of Quality Of Soil Structure And Water Regimes
... use measures of the quality of soil structure and water regimes, in conjunction with measures of potentially available N, to develop more accurate recommendations for fertilizer-N applications and thereby increase nitrogen use efficiency. An additional goal (not directly related to this project) is use these measures to define yield ...
res2.agr.gc.ca

OREP - Research Project List
... Barry J. Shelp, Dept. of Hort. Sci., Univ of Guelph, Guelph, ON OREP-12 Increasing Nitrogen Use Efficiency In Corn Production Systems: Quantifying Effects Of Quality Of Soil Structure And Water Regimes - ... - Dr. Daniel Brown, Southern Crop Protection & Food Research Centre, AAFC, London, ON OREP-22 Use of Plants for Production of an Animal Vaccine - Dr. Jim Brandle, Southern Crop Protection & ...
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Department of Biology: Plant Ecophysiology Group: Publications: 1995
... . Garnier E, Gobin O and Poorter H. Interspecific variation in nitrogen productivity depends on photosynthetic nitrogen use efficiency and nitrogen allocation within the plant. Ann. Bot. 667-672. Groeneveld ... R, Kostadinova S, Veneklaas EJ and Lambers H. Association of water use efficiency and nitrogen use efficiency with photosynthetic characteristics of two wheat cultivars. J. Exp. Bot. 46: ...
www.bio.uu.nl

Getting the Most from Your 2001 Nitrogen Dollars
... soybeans will increase the potential for disease and nematode problems, so use care in selecting varieties. Use proven crop production practices: Nitrogen use efficiency will be optimized when soil pH is maintained above 6.0, and soil P and K tests are maintained at the optimum level for your soil type. Use proven ...
www.cropsci.uiuc.edu

Management of Soil and Water for Vegetable Production in Southwest Florida
... -use efficiency when sufficient water is added to wet only the root zone with minimum leaching below that zone ( Figure 5 ). In fact 50 to 60% of vegetable growers in southwest Florida use ... below. High application rates of compost can lead to the mineralization and subsequent release of nitrogen in excess of that required to satisfy the crop nutrient requirements, and may have environmental ...
edis.ifas.ufl.edu

Nitrogen Fertilizer Sources: What Does The Future Hold for Citrus Producers?
... Footnotes Disclaimer Copyright Infomation Nitrogen Fertilizer Sources: What Does The Future Hold for Citrus Producers? Nitrogen Fertilizer Sources: What ... high cost of ammonium nitrate will likely stimulate increased use of ammonium sulfate or urea. Growers must be ... some management practices, if necessary, to maintain high fertilization efficiency. Tables Table 1. Changing costs of three N ...
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Input
... Noronha-Sannervik@lto.slu.se and Per.Nyman@evp.slu.se) Willow growth, water and nitrogen model - evaluation of weather and harvest regimes, and experimental data (Model Documentation)____(How ... Dead stem initial mass (g d.w./m2): Initial shoot age (y): Parameters (Doc.) Radiation use efficiency (g d.w./MJ): Mortality scale factor (-): Adjust simulation to measurement (Doc.) Target: (Alt.) Parameter ...
grodden.evp.slu.se

Modeling photosynthesis in olive leaves under drought conditions
... as well as the relationship of the model parameters with area-based leaf nitrogen (N) content. The effect of soil water deficit on leaf photosynthesis was ... , N-use efficiency of the olive leaves was enhanced at the expense of reduced water-use efficiency. Keywords: leaf nitrogen, nitrogen-use efficiency, non-stomatal limitation, Olea europaea, triose phosphate utilization, water-use efficiency. ...
heronpublishing.com

Carbon, water and nitrogen relations in evergreen and deciduous conifers
... 187 © 1986 Heron Publishing—Victoria, Canada [ PDF ] [ Return to Contents ] Carbon, water and nitrogen relations in evergreen and deciduous conifers R. Matyssek (1, 2) 1. Lehrstuhl Pflanzenö ... and crown level than in spruce, whereas evergreen spruce needles displayed a higher water use efficiency. However, because of foliage longevity and thus lower carbon investment in current-year foliage, ...
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Department of Biology: Plant Ecophysiology Group: Publications: 1998
... to elevated CO2 ? Glob. Change Biol. 4: 693-697. Poorter H and Evans JR. Photosynthetic nitrogen-use efficiency of species that differ inherently in specific leaf area. Oecologia 116: 26-37. Poorter H ... .). Utrecht University. (type A); promotor: prof dr J.T. Lambers. 12 juni 1998 Volder A. Nitrogen economy of polar desert plants. Utrecht University. (Type B) Promotores: Prof dr. L. Bliss and ...
www.bio.uu.nl

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