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Evaluating approaches to improving animal nitrogen use efficiency and reducing nitrous oxide emissions on dairy farms in south・eastern Australia

, 2013
KM Christie, RP Rawnsley, Matthew Tom Harrison, RJ Eckard   +3 more
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Plant Nitrogen Assimilation and Use Efficiency

Annual Review of Plant Biology, 2012
Crop productivity relies heavily on nitrogen (N) fertilization. Production and application of N fertilizers consume huge amounts of energy, and excess is detrimental to the environment; therefore, increasing plant N use efficiency (NUE) is essential for the development of sustainable agriculture.
Guohua, Xu, Xiaorong, Fan, Anthony J, Miller   +2 more
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Nitrogen use efficiency revisited

Oecologia, 2011
Nitrogen use efficiency (NUE) was originally defined as the dry mass productivity per unit N taken up from soil. The term was subsequently redefined as the product of nitrogen productivity (NP) and mean residence time of nitrogen (MRT). However, this redefinition was found to contradict the original definition under certain conditions, and confusion ...
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Photosynthesis and Nitrogen-Use Efficiency

2006
In C3 crop plants about 60–80% of leaf nitrogen (N) is invested in the photosynthetic apparatus, and N nutrition plays a crucial role in determining photosynthetic capacity. The proportion of leaf N invested in photosynthetic components is fairly constant.
P. Ananda Kumar, Martin A. J. Parry, Rowan A. C. Mitchell, Altaf Ahmad, Yash P. Abrol   +4 more
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Nitrogen use efficiency. 3. Nitrogen fixation: genes and costs

Annals of Applied Biology, 2009
AbstractThe nitrogen use efficiencies (NUE) of N2 fixation, primary NH 4+ assimilation and NO 3− assimilation are compared. The photon and water costs of the various biochemical and transport processes involved in plant growth, N‐assimilation, pH regulation and osmolarity generation, per unit N assimilated are respectively likely to be around 5 and 7 ...
M. Andrews, P.J. Lea, J.A. Raven, R.A. Azevedo   +3 more
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Nitrogen Use Efficiency in Plants

2011
Nitrogen fertilizers are necessary to enhance agricultural production and to sustain food security. However, their inefficient use accrues from inherent limitations of the crop plants as well as the manner in which N fertilizers are formulated, applied and managed. The main aim of the book is to assess the various aspects of the fate of fertilizer N in
Vanitha Jain, P. Ananda Kumar
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A review of nitrogen translocation and nitrogen-use efficiency

Journal of Plant Nutrition, 2019
AbstractNitrogen (N) is a primary nutrient for crop growth. In most agricultural areas, crop production relies heavily on the supply of exogenous N fertilizers.
Yingying Xing, Wenting Jiang, Xiaolong He, Sajid Fiaz, Shakeel Ahmad, Xin Lei, Wenqiang Wang, Yanfeng Wang, Xiukang Wang   +8 more
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Breeding for Nitrogen Use Efficiency

2012
Nitrogen (N) is a constituent of several organic compounds in plants. Consequently, this element is the most essential to plants. The identification of genotypes able to use nitrogen more efficiently is a slow process due the complexity of the metabolism of nitrogen, the influence of several environmental factors‚ and the great variation in the species
Júlio César DoVale, Rodrigo Oliveira DeLima, Roberto Fritsche-Neto   +2 more
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Response of nitrogen use efficient sorghums to nitrogen fertilizer

Journal of Plant Nutrition, 1998
Abstract Little information is available on the response of grain sorghum [Sorghum bicolor (L.) Moench] genotypes differing in nitrogen (N) use efficiency (NUE) (g DM g N‐1) to added N fertilizer. Such knowledge is important for reducing the reliance upon fertilizer N. A dryland field experiment was conducted in 1993 and 1994 at Mead, NE evaluating the
S.S.J. Buah, J.W. Maranville, A. Traore, P. J. BrameI‐Cox   +3 more
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