PubAg

Main content area

You searched for: Subject "nutrient use efficiency" Remove constraint Subject: "nutrient use efficiency"
Start Over

Search

3,060  Search Results

« Previous | 1 - 20 of 3,060 |
Number of results to display per page

Search Results

1. Driving forces of nitrogen flows and nitrogen use efficiency of food systems in seven Chinese cities, 1990 to 2015

Author:
Gao, Bing; Huang, Wei; Wang, Lan; Huang, Yunfeng; Ding, Shengping; Cui, Shenghui
Source:
The Science of the total environment 2019 v.676 pp. 144-154
ISSN:
0048-9697
Subject:
nutrient use efficiency,   etc   ; cities; exports; food prices; nitrogen; population growth; China;     Show all 7 Subjects
Abstract:
... The effects of population growth (PG), dietary changes (DC), native rural-to-urban migration (NM), migration from regions distant from the cities (M), and agricultural patterns and practices (AP) on N use in food systems and the food trade, and on apparent and virtual nitrogen (N) and N use efficiencies (NUE), at the city scale, are not well understood. Here we selected seven Chinese cities as the ...
DOI:
10.1016/j.scitotenv.2019.04.136

2. Grain phosphorus and phytate contents of wheat genotypes released during last 6 decades and categorization of selected genotypes for phosphorus use efficiency

Author:
Bilal, Hafiz Muhammad; Aziz, Tariq; Maqsood, Muhammad Aamer; Farooq, Muhammad
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2019 v.65 no.6 pp. 727-740
ISSN:
1476-3567
Subject:
nutrient use efficiency,   etc   ; genotype; harvest index; phosphorus; phytic acid; spikelets; tillers; wheat;     Show all 8 Subjects
Abstract:
... Grain phosphorus (P) and phytate contents are important for early growth and quality of wheat, respectively. We studied seed P and phytate contents of 57 wheat genotypes released during last 6 decades. The grain total P and phytate P concentrations ranged from 2.0 to 8.9 mg g⁻¹ and 1.6 to 4.7 mg g⁻¹, respectively. Grain P was higher in genotypes released in current or last decade than pre-green re ...
DOI:
10.1080/03650340.2018.1521957

3. Recent patterns of anthropogenic reactive nitrogen emissions with urbanization in China: Dynamics, major problems, and potential solutions

Author:
Xian, Chaofan; Zhang, Xiaoling; Zhang, Jingjing; Fan, Yupeng; Zheng, Hua; Salzman, James; Ouyang, Zhiyun
Source:
The Science of the total environment 2019 v.656 pp. 1071-1081
ISSN:
0048-9697
Subject:
nutrient use efficiency,   etc   ; coasts; ecosystems; emissions; lifestyle; nitrogen; population density; quantitative analysis; urbanization; China;     Show all 10 Subjects
Abstract:
... Anthropogenic emissions of reactive nitrogen (Nr) result in adverse impacts on the ecosystems. Nowhere has that threat been more challenging than in rapidly urbanized China, the world's largest anthropogenic Nr producer. The Nanjing Declaration in 2004 called for global reductions in Nr emissions. To assess China's progress, multisource Nr emissions were evaluated with a quantitative method from 2 ...
DOI:
10.1016/j.scitotenv.2018.11.352

4. Uncovering the hidden half of plants using new advances in root phenotyping

Author:
Atkinson, Jonathan A; Pound, Michael P; Bennett, Malcolm J; Wells, Darren M
Source:
Current opinion in biotechnology 2019 v.55 pp. 1-8
ISSN:
0958-1669
Subject:
nutrient use efficiency,   etc   ; automation; climate change; crop yield; crops; food security; image analysis; phenotype; population growth;     Show all 9 Subjects
Abstract:
... Major increases in crop yield are required to keep pace with population growth and climate change. Improvements to the architecture of crop roots promise to deliver increases in water and nutrient use efficiency but profiling the root phenome (i.e. its structure and function) represents a major bottleneck. We describe how advances in imaging and sensor technologies are making root phenomic studies ...
DOI:
10.1016/j.copbio.2018.06.002

5. Applying the nutrient footprint method to the beef production and consumption chain

Author:
Joensuu, Katri; Pulkkinen, Hannele; Kurppa, Sirpa; Ypyä, Jenni; Virtanen, Yrjö
Source:
The international journal of life cycle assessment 2019 v.24 no.1 pp. 26-36
ISSN:
0948-3349
Subject:
nutrient use efficiency,   etc   ; beef; beef cattle; beef production; food chain; life cycle assessment; nitrogen; nutrients; phosphorus;     Show all 9 Subjects
Abstract:
... PURPOSE: An indicator of nutrient use efficiency through the entire food chain has been lacking. This article proposes a nutrient footprint method to estimate the efficiency of using both nitrogen (N) and phosphorus (P) in animal production chains following Life Cycle Assessment (LCA). METHODS: Following the nutrient footprint method of Grönman et al. (2016), we applied the nutrient footprint meth ...
DOI:
10.1007/s11367-018-1511-3

6. The root nitrogen uptake response to partial nitrogen stress is related to previous nutritional status

Author:
Niu, Xiaoli; Hu, Tiantian; Zhang, Fucang; Duan, Aiwang; Zhang, Jiyang
Source:
Plant growth regulation 2019 v.87 no.1 pp. 55-67
ISSN:
0167-6903
Subject:
nutrient use efficiency,   etc   ; containers; corn; nitrogen; nutrient solutions; nutritional status; root systems; seedlings;     Show all 8 Subjects
Abstract:
... We investigated the dynamics and factors influencing the N uptake capacity in two sub-root systems of maize seedlings under partial N stress. Maize seedlings were grown in split-root containers containing nutrient solutions. Two N application conditions prior to partial N stress (full-strength N (4.0 mM): CP; N stress: SP) were considered. Thus, two experiments were conducted: (A) four treatments: ...
DOI:
10.1007/s10725-018-0451-z

7. Correction to: Opportunities to reduce nutrient inputs to the Baltic Sea by improving manure use efficiency in agriculture

Author:
McCrackin, Michelle L.; Gustafsson, Bo G.; Hong, Bongghi; Howarth, Robert W.; Humborg, Christoph; Savchuk, Oleg P.; Svanbäck, Annika; Swaney, Dennis P.
Source:
Regional environmental change 2018 v.18 no.6 pp. 1855-1856
ISSN:
1436-3798
Subject:
nutrient use efficiency,   etc   ; animal manures; fertilizer application; Baltic Sea;     Show all 4 Subjects
Abstract:
... In the published online version of the paper, Fig. 4 is incorrect. Corrected figure is provided below. ...
DOI:
10.1007/s10113-018-1340-8

8. Relationship between nitrogen accumulation and nitrogen use efficiency of rice under different urea types and management methods

Author:
Deng, Fei; Wang, Li; Li, Qiu-Ping; Ren, Wan-Jun
Source:
Archiv für Acker- und Pflanzenbau und Bodenkunde 2018 v.64 no.9 pp. 1278-1289
ISSN:
1476-3567
Subject:
nutrient use efficiency,   etc   ; fertilizers; nitrogen; rice; urea; China;     Show all 6 Subjects
Abstract:
... We aimed to clarify the effectiveness of polyaspartic acid (PASP)-urea on nitrogen (N) accumulation and N use efficiency in rice. We compared PASP-urea with conventional urea with two N management methods (farmer’s fertilizer practice and optimized N management) in Wenjiang, Sichuan Province, China, in 2014 and 2015. N recovery efficiency (NRE), N agronomic efficiency (NAE), and N partial factor p ...
DOI:
10.1080/03650340.2018.1424328

9. Correction to: Diversity and nutrient balances of urban and peri-urban farms in Ethiopia

Author:
Tadesse, SolomonTulu; Oenema, Oene; van Beek, Christy; Ocho, FikreLemessa
Source:
Nutrient cycling in agroecosystems 2018 v.111 no.1 pp. 19
ISSN:
1385-1314
Subject:
nutrient use efficiency,   etc   ; farms; statistical analysis; urban areas; Ethiopia;     Show all 5 Subjects
Abstract:
... In the original publication, in Table 6, the asterisks (***) indicating the P values appeared under the column of use efficiency for N ...
DOI:
10.1007/s10705-018-9917-7

10. Changing phosphorus metabolism of a global aquaculture city

Author:
Huang, Chu-Long; Gao, Bing; Xu, Su; Huang, Yunfeng; Yan, Xiaomei; Cui, Shenghui
Source:
Journal of cleaner production 2019 v.225 pp. 1118-1133
ISSN:
0959-6526
Subject:
nutrient use efficiency,   etc   ; aquaculture; food production; material flow analysis; metabolism; per capita food consumption; phosphorus; pollution load; recycling; urbanization; China;     Show all 11 Subjects
Abstract:
... The anthropogenic phosphorus scarcity and phosphorus-induced pollution call for a substantial improvement of phosphorus use efficiency (PUE). Using substance flow analysis, phosphorus flow charts for an agriculture city with fast growing aquaculture, i.e. Zhangzhou in China for the period 1995–2014, were drawn to present phosphorus flow distribution through its food system and identify where PUE c ...
DOI:
10.1016/j.jclepro.2019.03.298

11. A framework for analysing nitrification inhibition: A case study on 3,4-dimethylpyrazole phosphate (DMPP)

Author:
Vilas, M.P.; Verburg, K.; Thorburn, P.J.; Probert, M.E.; Bonnett, G.D.
Source:
The Science of the total environment 2019 v.672 pp. 846-854
ISSN:
0048-9697
Subject:
nutrient use efficiency,   etc   ; bioactive properties; carbon; case studies; half life; labeling techniques; longevity; nitrification; nitrification inhibitors; nitrogen; phosphates; soil; terminology;     Show all 13 Subjects
Abstract:
... Nitrification inhibitors show great potential to reduce nitrogen losses from agricultural systems and to improve nitrogen use efficiency. The most recently developed nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) is gaining popularity due to its benefits relative to other compounds. However, the behaviour of DMPP and its effect on nitrification in soils has been characterised using ...
DOI:
10.1016/j.scitotenv.2019.03.462

12. Polymer-coated urea rates, timings, and ratio combinations with non-coated urea for corn

Author:
Dhakal, Dhruba; Nelson, Kelly A.
Source:
Journal of plant nutrition 2019 v.42 no.9 pp. 1072-1085
ISSN:
1532-4087
Subject:
nutrient use efficiency,   etc   ; Zea mays; application timing; corn; grain protein; grain quality; grain yield; nitrogen; polymer-coated urea; urea;     Show all 10 Subjects
Abstract:
... Using enhanced efficiency fertilizers, such as polymer-coated urea (PCU), may be a good nitrogen (N) management option for increased corn (Zea mays L.) grain productivity, improved grain quality and N apparent recovery efficiency. The objective of this study was to evaluate the effect of N application timings (pre-emergence or topdress), N rates (0, 84, 126 and 168 kg N ha⁻¹) and ratios of PCU wit ...
DOI:
10.1080/01904167.2019.1589498

13. Future global pig production systems according to the Shared Socioeconomic Pathways

Author:
Lassaletta, Luis; Estellés, Fernando; Beusen, Arthur H.W.; Bouwman, Lex; Calvet, Salvador; van Grinsven, Hans J.M.; Doelman, Jonathan C.; Stehfest, Elke; Uwizeye, Aimable; Westhoek, Henk
Source:
The Science of the total environment 2019 v.665 pp. 739-751
ISSN:
0048-9697
Subject:
nutrient use efficiency,   etc   ; crude protein; emissions; excretion; feed rations; fertilizers; humans; models; nitrogen; pork; production technology; slurries; socioeconomics; swine production;     Show all 14 Subjects
Abstract:
... Global pork production has increased fourfold over the last 50 years and is expected to continue growing during the next three decades. This may have considerable implications for feed use, land requirements, and nitrogen emissions. To analyze the development of the pig production sector at the scale of world regions, we developed the IMAGE-Pig model to describe changes in feed demand, feed conver ...
DOI:
10.1016/j.scitotenv.2019.02.079

14. Reduced snow cover changes nitrogen use in canopy and understory vegetation during the subsequent growing season

Author:
Tateno, Ryunosuke; Imada, Shogo; Watanabe, Tsunehiro; Fukuzawa, Karibu; Shibata, Hideaki
Source:
Plant and soil 2019 v.438 no.1-2 pp. 157-172
ISSN:
0032-079X
Subject:
nutrient use efficiency,   etc   ; canopy; growing season; leaves; nitrogen; nitrogen cycle; phenology; resorption; snow; snowpack; trees; understory; vegetation;     Show all 13 Subjects
Abstract:
... AIMS: In this study, we investigated the effects of reduced snow depth on plant phenology, productivity, nitrogen (N) cycling, and N use in canopy and understory vegetation. We hypothesized that decreased snow depth would hasten the timing of leaf flushing and N uptake in understory vegetation, increasing its N competitive advantage over canopy trees. RESULTS: Snow removal did not directly affect ...
DOI:
10.1007/s11104-019-04011-2

15. Nutrient budgets in a small-scale freshwater fish pond system in Indonesia

Author:
Pouil, Simon; Samsudin, Reza; Slembrouck, Jacques; Sihabuddin, Ahmad; Sundari, Gusnia; Khazaidan, Khazaidan; Kristanto, Anang Hari; Pantjara, Brata; Caruso, Domenico
Source:
Aquaculture 2019 v.504 pp. 267-274
ISSN:
0044-8486
Subject:
nutrient use efficiency,   etc   ; Osphronemus; environmental impact; fish farms; fish production; freshwater aquaculture; freshwater fish; models; nutrients; pellets; ponds; sediments; Indonesia;     Show all 13 Subjects
Abstract:
... Over the past several years, Indonesian freshwater aquaculture has intensified, with a concomitant increase in the use of commercial pellets. To assess the effects of pond aquaculture intensification on nutrient dynamics, we monitored nutrients and fish production in a small-scale fish farm in West Java province. The studied system consisted of semi-intensive giant gourami (Osphronemus goramy) pro ...
DOI:
10.1016/j.aquaculture.2019.01.067

16. Nitrogen topdressing at the jointing stage affects the nutrient accumulation and translocation in rainfed waxy maize

Author:
Gu, Xiaotian; Ding, Mengqiu; Lu, Weiping; Lu, Dalei
Source:
Journal of plant nutrition 2019 v.42 no.6 pp. 657-672
ISSN:
1532-4087
Subject:
nutrient use efficiency,   etc   ; field experimentation; grain yield; harvest index; nitrogen; nitrogen fertilizers; phosphorus; pollution; potassium; risk; top dressings; waxy corn;     Show all 12 Subjects
Abstract:
... Timely and fitting nitrogen (N) application decreases costs and pollution risk in maize cultivation. To explore the accumulation and remobilization of dry matter (DM), N, phosphorus (P), and potassium (K) in waxy maize under various N topdressings (0 kg ha⁻¹, LN; 150 kg ha⁻¹, MN; 300 kg ha⁻¹, HN) at the jointing stage, a field trial involving two waxy maize varieties (Suyunuo 5 and Yunuo 7) was co ...
DOI:
10.1080/01904167.2019.1567773

17. Comparison of N Mineralization Rate and Pattern in Different Manure- and Sewage Sludge-Amended Calcareous Soil

Author:
Zare, Leila; Ronaghi, Abdolmajid
Source:
Communications in soil science and plant analysis 2019 v.50 no.5 pp. 559-569
ISSN:
1532-2416
Subject:
nutrient use efficiency,   etc   ; ammonium; calcareous soils; cattle manure; mineralization; nitrates; nitrogen; poultry manure; sewage; sewage sludge; sheep manure;     Show all 11 Subjects
Abstract:
... A 12-week incubation experiment was conducted to determine the pattern and rate of N mineralized from organic materials. Treatments consisted of sheep manure (SM), cattle manure (CM), poultry manure (PM), sewage sludge (SS) at 1% (W/W) level, and unfertilized treatment with three replications. The concentrations of nitrate (NO₃)- nitrogen (N) and ammonium (NH₄)-N were determined in day 1 and 1, 2, ...
DOI:
10.1080/00103624.2019.1573247

18. Nitrogen Uptake and Utilization Efficiency of Malting Barley as Influenced by Variety and Nitrogen Level

Author:
Kassie, Meharie; Fanataye, Kindie
Source:
Journal of crop science and biotechnology 2019 v.22 no.1 pp. 65-73
ISSN:
1975-9479
Subject:
nutrient use efficiency,   etc   ; fertilizer rates; grain yield; grains; growing season; malting; malting barley; nitrogen; nitrogen fertilizers; straw; Ethiopia;     Show all 11 Subjects
Abstract:
... Nitrogen (N) is the primary driver of crop production and it is heavily used in modern agriculture to maximize yield. However, the effectiveness with which N is used by cereals has become increasingly important because of both financial and environmental costs to N fertilization. The aims of this study were to determine the effects of N fertilization rate, variety, and growing season on grain yiel ...
DOI:
10.1007/s12892-019-0004-0

19. Herbicide and nitrogen rate effects on weed suppression, N uptake, use efficiency and yield in winter oilseed rape (Brassica napus L.)

Author:
Wang, Li; Liu, Qiuxia; Dong, Xiaoyan; Liu, Yi; Lu, Jianwei
Source:
Global ecology and conservation 2019 v.17 pp. e00529
ISSN:
2351-9894
Subject:
nutrient use efficiency,   etc   ; Brassica napus; crop yield; fertilizer application; field experimentation; herbicides; nitrogen; nitrogen fertilizers; pesticide application; weed control; winter;     Show all 11 Subjects
Abstract:
... Improved weed management strategies are imperative in oilseed rape production. Herbicide and nitrogen (N) fertilization could be integrated into weed management as these are known to affect weed emergence and growth. In this study, two-factor designed field experiments were conducted to investigate the direct and/or interactive effects of herbicide application and N fertilization on weed suppressi ...
DOI:
10.1016/j.gecco.2019.e00529

20. Transcriptomic analysis reveals adaptive strategies to chronic low nitrogen in Tibetan wild barley

Author:
Quan, Xiaoyan; Zeng, Jianbin; Chen, Guang; Zhang, Guoping
Source:
BMC plant biology 2019 v.19 no.1 pp. 68
ISSN:
1471-2229
Subject:
nutrient use efficiency,   etc   ; agricultural development; barley; cultivars; genes; genetic variation; genotype; metabolism; nitrogen; root growth; sequence analysis; stress tolerance; sustainable agriculture; transcription (genetics); transcriptomics;     Show all 15 Subjects
Abstract:
... BACKGROUND: Development of crop cultivars with high low nitrogen (LN) tolerance or nitrogen use efficiency (NUE) is imperative for sustainable agriculture development. Tibetan wild barley is rich in genetic diversity and may provide elite genes for LN tolerance improvement. Little has been known about transcriptional responses of the wild barley to chronic LN stress. RESULTS: In this study, transc ...
DOI:
10.1186/s12870-019-1668-3