Results 121 to 130 of about 960,188 (308)

Nitrogen dynamics and nitrogen use efficiency of spring cereals under Finnish growing conditions [PDF]

open access: yes, 2012
v2007okKATDiss.: Helsinki : Helsingin yliopisto ...
Muurinen, Susanna
core  

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

Nitrogen Use Efficiency in Plants [PDF]

open access: yesJournal of Experimental Botany, 2012
Sáez, Concepción Ávila   +2 more
openaire   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

open access: yesAdvanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang   +3 more
wiley   +1 more source

Nitrogen management and regulation for optimum NUE in maize – A mini review

open access: yesCogent Food & Agriculture, 2017
Modern agriculture has posed a great impact upon natural resources in terms of exploitation and their luxurious use. Ever increasing population pressure has exhausted the sustainable agricultural production system by exploiting land and water resources ...
Mehmood Ali Noor
doaj   +1 more source

Environmental Efficiency Analysis of Basmati Rice Production in Punjab, Pakistan: Implications for Sustainable Agricultural Development [PDF]

open access: yes
The intensive use of chemicals worked as a catalyst to shift the production frontier but the most critical factor of maintaining a clean environment was totally ignored.
Abedullah   +2 more
core  

Resource effective control of Elymus repens [PDF]

open access: yes, 2013
Preliminary results show that there is room for improvement within existing control methods of couch grass (Elymus repens (L.) Gould). It may be possible to reduce the number of stubble cultivations during autumn by timing the treatment, and to reduce ...
Andersson, L.   +3 more
core  

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Analysis of Environmental and Economic Efficiency: Application of the Overseer model and simulated data [PDF]

open access: yes
New Zealand’s success in raising agricultural productivity has been accompanied by higher input use, leading to adverse effects on the environment. Until recently, analysis of farm performance has tended to ignore such negative externalities. The current
Marsh, Dan   +2 more
core   +1 more source

Nitrogen use efficiency in cereals production under Mediterranean conditions [PDF]

open access: yes, 2014
Nitrogen use efficiency (NUE) for cereal production in Mediterranean regions is generally low due to N losses over winter and difficulties in calculating the optimum N level for a particular season, given that it depends on the existing rainfall pattern.
Carvalho, Mário
core  

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