Effects of nitrogen supply on water‐use efficiency of higher plants

Brueck, Holger

doi:10.1002/jpln.200700080

Cited by 80 publications

(50 citation statements)

References 66 publications

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“…Studies comparing grassland RUE under variable N fertilizer application consistently indicated positive effects of N supply on RUE (Lauenroth et al 1978;Bai et al 2008). These findings are consistent with results from pot experiments showing that biomass water-use efficiency increases under water stress (Bacon 2004) and increases with N supply (Brueck 2008).…”

Section: Introductionsupporting

confidence: 85%

Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

et al. 2009

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Productivity of semiarid grasslands is primarily limited by seasonal rainfall amount and becomes increasingly limited by nutrient availability under wet conditions. Interactive effects of water and N availability on grassland productivity and parameters related to water use were studied on a grassland site in Inner Mongolia, China, in a 2-factorial experiment with two levels of water (rainfed: 158 mm; irrigated: 839 (N0) and 972 (N1) mm) and N supply (0 or 180 kg N ha −1 ). RUE was calculated from ANPP and cumulative water supply. Bare soil evaporation (E) was calculated from climatic data and leaf area dynamics, and percolation (D) and transpiration (T) were estimated with HYDRUS-1D. Water-use efficiency (WUE, ANPP / (T + D)) and transpiration efficiency (TE, ANPP / T) were calculated. Resource availability had pronounced effects on the water-use efficiency of semiarid grassland. RUE, WUE, and TE all decreased under irrigated compared to rainfed conditions and were significantly increased with N fertilizer application at both levels of water supply. While the irrigation effect on parameters of water-use efficiency were accordingly reflected in stable carbon isotope signatures, N supply resulted in significantly less negative δ 13 C-values under rainfed but not irrigated conditions. It is concluded, that spatial or temporal gradients in resource availability have pronounced effects on the water-use efficiency of semiarid grassland. The decrease of water use-efficiency under high water supply was related to differences in TE and not to a relative increase of unproductive water loss. Carbon isotope discrimination was highly correlated with WUE and TE, but can be a poor predictor of RUE.

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Section: Introductionsupporting

confidence: 85%

Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

et al. 2009

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“…Although there has been much research on the influence of N supply on WUE, from uniform results have not always been obtained as described by Brueck (2008). There are many reports associating improvement of WUE with N supply (Heitholt, 1989; Pieterse et al, 1997Brück et al, 2001; Brueck andSenbayram, 2009;Kütük et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Although much attention has been focused on the impact of fertilizer N supply on WUE, results are not necessarily consistent (Brueck, 2008). Past many researches show that an increase in N supply accompanies an increase in WUE (Heitholt, 1989;Pieterse et al, 1997;Brück et al, 2001;Kütük et al, 2004;Brueck and Senbayram, 2009).…”

mentioning

confidence: 98%

Effect of Fertilizer and Fixed Nitrogen on the Water Use Efficiency of Genge (Astragalus sinicus L.)

Sumi

Sugata

Yahiro

et al. 2015

Plant Production Science

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“…Based on equation (Brueck, 2008), it can be analytically calculate (equation system 3) the depth of irrigation water and nitrogen fertilizer that can be applied to ensure maximum performance. The constraints imposed for optimizing resource, including the minimum and maximum amounts actually used in this study.…”

Section: First Scenario: Lack Of Water Resources Restrictionmentioning

confidence: 99%

Application of bioinformatics in the prediction and identifi cation of potential antimicrobial peptides from Curcuma longa

Suryawanshi¹,

Chouhan²

2016

Biosci. Biotech. Res. Comm

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Irrigation water has become less available in many regions due to global climate change and an increased competition for water by industry, domestic purposes, and the environment. To confront this challenge, there is an urgent need to develop water-saving irrigation strategies and techniques in order to maximize crop water use effi ciency (WUE). In the other hand over-fertilization of mobile nutrients like nitrogen (N) may lead to leaching beyond root zone under plentiful irrigation, while it may decrease yield under limited irrigation. Thus, fertilizer N needs to be optimized in relation to water availability. In order to determine optimum levels of water and nitrogen of potato, a fi eld experiment was carried out by central composite design (CCD) as Response surface methodology (RSM) as a most popular optimization method, in Dehgolan plain in Kurdistan province, west of Iran, spring season of 2014. The treatments were designed based on low and high levels of water supply (50% and 100% of crop water requirement) and applied nitrogen (250 and 350 kg N ha −1 ) as independent variables. In this study, tuber yield (Y) and WUE were measured as response variables. Optimum levels of N fertilizer and irrigation depth were determined based on three scenarios: availability and nonavailability of water for irrigation. Furthermore, for environmental consideration, effects of minimum rate application of N on surface responses were evaluated also.. The results showed a marked interaction between level of irrigation and nitrogen on potato Y and WUE. The results also revealed that increasing irrigation and fertilizer led to an increase in tuber yield. WUE was decreased with increasing in water supply but N increasing had positive effect on WUE in a certain irrigation depth. Maximum Y was 69200 kg ha ). Based on response surfaces of Y and WUE, the amounts of 552 mm and 349.5 kg N ha −1 was found to be the optimum levels of water and nitrogen for unlimited water conditions. WUE value in this situation was 130 kg ha −1 mm −1. For scarce water condition such as arid and semiarid regions, optimum values of irrigation water and N based on response surfaces were simulated 287 mm and 350 kg N ha −1 , respectively. If the goal of optimization is maximizing Y and WUE simultaneously, then applied water and nitrogen was estimated about 461 mm and 350 kg N ha −1 and corresponding Y and WUE were achieved 62742 kg ha −1 and 143 kg ha −1 mm −1 respectively. For minimizing N application, optimum levels of resources were found 502 mm irrigation and 250 kg N ha-1. In this scenario 50242 kg ha −1 for Y and 105 kg ha −1 mm −1 for WUE were obtained. Comparison of results showed that WUE maximizing strategy resulted in 48% saving in water supply. Simultaneous maximizing of Y and WUE reduced applied irrigation water by 17% and consequently tuber yield reduction rate was 9%. Potato yield reduction in minimum use of N was 27% while irrigation water applied decreased by 9%.

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Effects of nitrogen supply on water‐use efficiency of higher plants

Cited by 80 publications

References 66 publications

Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

Effects of N and water supply on water use-efficiency of a semiarid grassland in Inner Mongolia

Effect of Fertilizer and Fixed Nitrogen on the Water Use Efficiency of Genge (Astragalus sinicus L.)

Application of bioinformatics in the prediction and identifi cation of potential antimicrobial peptides from Curcuma longa

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