scholarly journals Impact and mechanism of sulphur-deficiency on modern wheat farming nitrogen-related sustainability and gliadin content

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Zitong Yu ◽  
Maoyun She ◽  
Ting Zheng ◽  
Dean Diepeveen ◽  
Shahidul Islam ◽  
...  
Keyword(s):  
Large Scale ◽  
Negative Impact ◽  
Wheat Gluten ◽  
Farming Systems ◽  
Health Issues ◽  
Sulphur Deficiency ◽  
Global Issue ◽  
Large Scale Field ◽  
Modern Wheat ◽  
Use Efficiency

AbstractTwo challenges that the global wheat industry is facing are a lowering nitrogen-use efficiency (NUE) and an increase in the reporting of wheat-protein related health issues. Sulphur deficiencies in soil has also been reported as a global issue. The current study used large-scale field and glasshouse experiments to investigate the sulphur fertilization impacts on sulphur deficient soil. Here we show that sulphur addition increased NUE by more than 20% through regulating glutamine synthetase. Alleviating the soil sulphur deficiency highly significantly reduced the amount of gliadin proteins indicating that soil sulphur levels may be related to the biosynthesis of proteins involved in wheat-induced human pathologies. The sulphur-dependent wheat gluten biosynthesis network was studied using transcriptome analysis and amino acid metabolomic pathway studies. The study concluded that sulphur deficiency in modern farming systems is not only having a profound negative impact on productivity but is also impacting on population health.

Limitations and Impacts of Agricultural Production on the Savanna Belt: the Nigerian Case

1995 ◽  
Vol 24 (2) ◽  
pp. 117-120 ◽  
Author(s):  
Chijioke C. Onyebuchi
Keyword(s):  
Agricultural Production ◽  
Large Scale ◽  
Negative Impact ◽  
Farming Systems ◽  
Climatic Conditions ◽  
Limiting Factors ◽  
Ecological Principles ◽  
Nigerian Savanna

It is not enough simply to identify the limiting factors to agricultural production, supply the appropriate inputs and then expect to be able to meet food demands. It is essential also to protect the environment in which food is grown, especially in areas of fragile ecosystems and harsh climatic conditions, in order to ensure both increased production and stability of the production base. In the Nigerian savanna belt, traditional and mechanized large-scale farming systems are both practised, and they combine with unfavourable climatic conditions to exert a strong negative impact on the environment. Here, these interactions are examined and the case is made for incorporating fundamental ecological principles and concepts of sustainability into farming systems, in Nigeria and elsewhere.

scholarly journals Enhanced Agronomic Efficiency Using a New Controlled-Released, Polymeric-Coated Nitrogen Fertilizer in Rice

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1183
Author(s):  
Ricardo Gil-Ortiz ◽  
Miguel Ángel Naranjo ◽  
Antonio Ruiz-Navarro ◽  
Sergio Atares ◽  
Carlos García ◽  
...  
Keyword(s):  
Controlled Release ◽  
Large Scale ◽  
Slow Release ◽  
Growth Parameters ◽  
Crop Management ◽  
Ambient Conditions ◽  
N Losses ◽  
Controlled Release Fertilizer ◽  
Large Scale Field ◽  
Use Efficiency

Fertilizer-use efficiency is one of the most critical concerns in rice cultivation to reduce N losses, increase yields, and improve crop management. The effects of a new polymeric-coated controlled-release fertilizer (CRF) were compared to those of other slow-release and traditional fertilizers in a microscale experiment, which was carried out in cuvettes under partly controlled ambient conditions, and a large-scale field experiment. To evaluate the fertilizer’s efficiency, nitrogen and water-use efficiency were calculated using the measurement of different photosynthetic and crop yield parameters. Improved responses regarding some of the analyzed physiological and growth parameters were observed for those plants fertilized with the new CRF. In the microscale experiment, significantly increased yields (ca. 35%) were produced in the plants treated with CRF as compared to traditional fertilizer. These results were in accordance with ca. 24% significant increased levels of N in leaves of CRF-treated plants, besides increased P, Fe, Mn, and cytokinin contents. At the field scale, similar yields were obtained with the slow-release or traditional fertilizers and CRF at a 20% reduced N dose. The new controlled-release fertilizer is a urea-based fertilizer coated with lignosulfonates, which is cheaply produced from the waste of pulp and wood industries, containing humic acids as biostimulants. In conclusion, CRF is recommended to facilitate rice crop management and to reduce contamination, as it can be formulated with lower N doses and because it is ecological manufacturing.

scholarly journals Yield-Related QTL Clusters and the Potential Candidate Genes in Two Wheat DH Populations

2021 ◽  
Vol 22 (21) ◽  
pp. 11934
Author(s):  
Jingjuan Zhang ◽  
Maoyun She ◽  
Rongchang Yang ◽  
Yanjie Jiang ◽  
Yebo Qin ◽  
...  
Keyword(s):  
Candidate Genes ◽  
Large Scale ◽  
Field Trials ◽  
Grain Protein Content ◽  
Wheat Breeding ◽  
Grain Protein ◽  
Potential Candidate ◽  
Large Scale Field ◽  
Use Efficiency ◽  
Positive Correlations

In the present study, four large-scale field trials using two doubled haploid wheat populations were conducted in different environments for two years. Grain protein content (GPC) and 21 other yield-related traits were investigated. A total of 227 QTL were mapped on 18 chromosomes, which formed 35 QTL clusters. The potential candidate genes underlying the QTL clusters were suggested. Furthermore, adding to the significant correlations between yield and its related traits, correlation variations were clearly shown within the QTL clusters. The QTL clusters with consistently positive correlations were suggested to be directly utilized in wheat breeding, including 1B.2, 2A.2, 2B (4.9–16.5 Mb), 2B.3, 3B (68.9–214.5 Mb), 4A.2, 4B.2, 4D, 5A.1, 5A.2, 5B.1, and 5D. The QTL clusters with negative alignments between traits may also have potential value for yield or GPC improvement in specific environments, including 1A.1, 2B.1, 1B.3, 5A.3, 5B.2 (612.1–613.6 Mb), 7A.1, 7A.2, 7B.1, and 7B.2. One GPC QTL (5B.2: 671.3–672.9 Mb) contributed by cultivar Spitfire was positively associated with nitrogen use efficiency or grain protein yield and is highly recommended for breeding use. Another GPC QTL without negatively pleiotropic effects on 2A (50.0–56.3 Mb), 2D, 4D, and 6B is suggested for quality wheat breeding.

scholarly journals Does Information Break the Political Resource Curse? Experimental Evidence from Mozambique

2020 ◽  
Vol 110 (11) ◽  
pp. 3431-3453 ◽  
Author(s):  
Alex Armand ◽  
Alexander Coutts ◽  
Pedro C. Vicente ◽  
Inês Vilela
Keyword(s):  
Large Scale ◽  
Field Experiments ◽  
Negative Impact ◽  
Resource Curse ◽  
Civil Conflict ◽  
Elite Capture ◽  
Political Resource ◽  
Scale Field ◽  
Large Scale Field ◽  
Local Leaders

Natural resources can have a negative impact on the economy through corruption and civil conflict. This paper tests whether information can counteract this political resource curse. We implement a large-scale field experiment following the dissemination of information about a substantial natural gas discovery in Mozambique. We measure outcomes related to the behavior of citizens and local leaders through georeferenced conflict data, behavioral activities, lab-in-the-field experiments, and surveys. We find that information targeting citizens and their involvement in public deliberations increases local mobilization and decreases violence. By contrast, when information reaches only local leaders, it increases elite capture and rent-seeking. (JEL C73, D72, D74, O13, O17, Q33, Q34)

Biodata response elaboration: A large-scale field experiment

2010 ◽  
Author(s):  
Julia Levashina ◽  
Frederick P. Morgeson ◽  
Michael A. Campion
Keyword(s):  
Field Experiment ◽  
Large Scale ◽  
Scale Field ◽  
Large Scale Field

Accidental Sustainability

2017 ◽  
Author(s):  
Geoffrey Jones
Keyword(s):  
Large Scale ◽  
Negative Impact ◽  
Positive Impact ◽  
Organic Food ◽  
The United States ◽  
Air Travel ◽  
Business Leaders ◽  
Natural Beauty ◽  
And Diffusion ◽  
Whole Foods

This chapter examines the scaling and diffusion of green entrepreneurship between 1980 and the present. It explores how entrepreneurs and business leaders promoted the idea that business and sustainability were compatible. It then examines the rapid growth of organic foods, natural beauty, ecological architecture, and eco-tourism. Green firms sometimes grew to a large scale, such as the retailer Whole Foods Market in the United States. The chapter explores how greater mainstreaming of these businesses resulted in a new set of challenges arising from scaling. Organic food was now transported across large distances causing a negative impact on carbon emissions. More eco-tourism resulted in more air travel and bigger airports. In other industries scaling had a more positive impact. Towns were major polluters, so more ecological buildings had a positive impact.

Hybrid Combination of GIS,GPS,WSN and GPRS Technology in Modern Digital Agriculture Application

2010 ◽  
Vol 108-111 ◽  
pp. 1158-1163 ◽  
Author(s):  
Peng Cheng Nie ◽  
Di Wu ◽  
Weiong Zhang ◽  
Yan Yang ◽  
Yong He
Keyword(s):  
Large Scale ◽  
Field Application ◽  
Wireless Sensor ◽  
Information Collection ◽  
Scale Field ◽  
Large Scale Field ◽  
Field Information ◽  
Intelligent Management ◽  
Digital Agriculture ◽  
And Control

In order to improve the information management of the modern digital agriculture, combined several modern digital agriculture technologies, namely wireless sensor network (WSN), global positioning system (GPS), geographic information system (GIS) and general packet radio service (GPRS), and applied them to the information collection and intelligent control process of the modern digital agriculture. Combining the advantage of the local multi-channel information collection and the low-power wireless transmission of WSN, the stable and low cost long-distance communication and data transmission ability of GPRS, the high-precision positioning technology of the DGPS positioning and the large-scale field information layer-management technology of GIS, such a hybrid technology combination is applied to the large-scale field information and intelligent management. In this study, wireless sensor network routing nodes are disposed in the sub-area of field. These nodes have GPS receiver modules and the electric control mechanism, and are relative positioned by GPS. They can real-time monitor the field information and control the equipment for the field application. When the GPS position information and other collected field information are measured, the information can be remotely transmitted to PC by GPRS. Then PC can upload the information to the GIS management software. All the field information can be classified into different layers in GIS and shown on the GIS map based on their GPS position. Moreover, we have developed remote control software based on GIS. It can send the control commands through GPRS to the nodes which have control modules; and then we can real-time manage and control the field application. In conclusion, the unattended automatic wireless intelligent technology for the field information collection and control can effectively utilize hardware resources, improve the field information intelligent management and reduce the information and intelligent cost.

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