Results 41 to 50 of about 373,951 (309)

Simple models and concepts as tools for the study of sustained soil productivity in long-term experiments. II. Crop nutrient equivalents, balanced supplies of available nutrients, and NPK triangles [PDF]

, 2011
Two NPK factorial trials, one in Vietnam and one in The Netherlands were (re-)analyzed to find causes of success or failure with regard to sustained soil productivity, using the concept of crop nutrient equivalents (CNE).
Janssen, B.H.
core   +2 more sources

Nutrient recovery from water and wastewater [PDF]

, 2022
International ...
Colston, Robert, Tait, Stephan, Vaneeckhaute, Céline, Cruz, Heidy, Pikaar, Ilje, Seviour, Thomas, Klok, Johannes B.M., Weijma, Jan, Dijkman, Henk, Buisman, Cees J.N., Scattergood, Sasha, Robles-Aguilar, Ana A., Meers, Erik, Béline, Fabrice, Soares, Ana   +14 more
openaire   +6 more sources

Science-based decision support for formulating crop fertilizer recommendations in sub-Saharan Africa [PDF]

, 2020
Open Access Article; Published online: 31 Jan 2020In sub-Saharan Africa, there is considerable spatial and temporal variability in relations between nutrient application and crop yield, due to varying inherent soil nutrients supply, soil moisture, crop ...
Andersson, Jens A., Balemi, T., Craufurd, P.Q., Jibrin, J.M., Kamara A.Y., Masuki, K., Mohammed, I., Mutegi, J., Pampolino, M.F., Rurinda, J., Vanlauwe, Bernard, Zingore, S.   +11 more
core   +1 more source

Spatially explicit datasets of pesticide inputs integrating 146 active ingredients in China from 2001 to 2022

Scientific Data
The escalating environmental risks in China posed by pesticides necessitate precise management and supervision strategies, yet such a national-scale framework is hindered by data gaps.
Bin Zhang, Hongyu Mu, Hua Li, Siqi Gao, Yalan Zhou, Wei An   +5 more
doaj   +1 more source

Aspen Plus^® Process Simulation Model of the Biomass Ash-Based Treatment of Anaerobic Digestate for Production of Fertilizer and Upgradation of Biogas

Energies, 2023
The use of the commercial simulator Aspen Plus® could bring an amelioration in the accuracy of the predictions of the chemical species composition in the output streams of the anaerobic digestion process.
Alejandro Moure Abelenda, Abdikhani Ali, Kirk T. Semple, Farid Aiouache   +3 more
doaj   +1 more source

The nitrogen and phosphorus budget of Flanders: a tool for efficient waste management and nutrient recovery [PDF]

, 2015
The region of Flanders in Belgium is, due to its high population density, intensive industry and livestock production, a nutrient-rich region. This results in important anthropogenic emissions to the environment, but also a large potential for the ...
Boon, Nico, Buysse, Jeroen, Coppens, Joeri, Meers, Erik, Vlaeminck, Siegfried   +4 more
core  

Phosphate removal in agro-industry: pilot- and full-scale operational considerations of struvite crystallization [PDF]

, 2009
Pilot-scale struvite crystallisation tests using anaerobic effluent from potato processing industries were performed at three different plants. Two plants (P1 & P2) showed high phosphate removal efficiencies, 89 + 3% and 75 + 8%, resulting in final ...
Carballa, Marta, Derycke, Dirk, Moerman, Wim, Vandekerckhove, Andy, Verstraete, Willy   +4 more
core   +2 more sources

Exergy analysis of nutrient recovery processes

Water Science and Technology, 2003
In an exergy analysis, the actual consumption of resources in physical and chemical processes is calculated. Energy and chemical elements are not consumed in the processes - they are only transformed into other forms with lower quality. The principals of exergy analysis are illustrated by comparing different wastewater treatment systems for nutrient ...
openaire   +2 more sources

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Biomass Accumulation, Contaminant Removal, and Settling Performance of Chlorella sp. in Unsterilized and Diluted Anaerobic Digestion Effluent

Fermentation
Microalgae demonstrate significant efficacy in wastewater treatment. Anaerobic digestion effluent (ADE) is regarded as an underutilized resource, abundant in carbon, nitrogen, phosphorus, and other nutrients; however, the presence of inhibitory factors ...
Canbo Wang, Qi Zhang, Zhiqiang Gu, Longfei Zhang, Rumeng Lu, Cuixia Liu, Yuhuan Liu   +6 more
doaj   +1 more source