Results 11 to 20 of about 11,656,595 (311)

Calculation Methods of Total Nitrogen and Total Phosphorus Distribution in Pig Manure Fractions

open access: yesИнженерные технологии и системы, 2022
Introduction. The study aims to develop and test a comprehensive calculation methodology in a case study of pilot pig complexes to verify reliability of estimates. The methods are required for reliable tracking of the nutrients flow at the farm level and
Ekaterina V. Shalavina   +2 more
doaj   +1 more source

Spatial distribution of soil organic carbon and total nitrogen in disturbed Carex tussock wetland

open access: yesEcological Indicators, 2021
Disturbance affects the ecological structure and function of wetland ecosystems by altering plant and soil properties. To identify the response of soil carbon and nitrogen to wetland disturbance, this study was conducted in three disturbed and two ...
Q. Qi   +5 more
semanticscholar   +1 more source

Evaluation of Total Nitrogen in Water via Airborne Hyperspectral Data: Potential of Fractional Order Discretization Algorithm and Discrete Wavelet Transform Analysis

open access: yesRemote Sensing, 2021
Controlling and managing surface source pollution depends on the rapid monitoring of total nitrogen in water. However, the complex factors affecting water quality (plant shading and suspended matter in water) make direct estimation extremely challenging.
Jinhua Liu   +3 more
doaj   +1 more source

Field diagnostic techniques to determine nitrogen in maize

open access: yesTerra Latinoamericana, 2021
Few technologies are available to quantify crop's nutritional status during their vegetative cycle, such as in maize. Semiquantitative alternatives could replace the laboratory foliar analysis's classical approach for measuring nitrogen (N) in maize (Zea
Eduhin Roacho-Cortés   +2 more
doaj   +1 more source

Prediction and mapping of organic carbon and total nitrogen in reclaimed soil profiles in surface coal mining areas based on imaging hyperspectral technology

open access: yesMeitan xuebao, 2023
After the process of surface mining, stripping and covering, the vertical distribution of organic carbon (SOC) and total nitrogen (TN) in the reclaimed mine soil undergoes great changes, which directly determines the selection of vegetation species and ...
Sihan PENG   +4 more
doaj   +1 more source

Study on Total Control of Total Nitrogen in the Laizhou Bay [PDF]

open access: yesWater, 2021
Human activity imposes a stronger and increasing impact on the coastal environment by land-based discharge and run-off pollution inputs. Land-based total nitrogen (TN) pollution, as the main cause of eutrophication in the Laizhou Bay, China, should be controlled effectively.
Haohong Peng   +4 more
openaire   +1 more source

Avaliação preliminar das cargas difusas de origem rural, em uma sub-bacia do Rio Jaguari, SP Preliminary assessment of diffused loads from rural areas in a sub-basin of the Jaguari River, SP, Brazil

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2006
Dados oficiais de concentração de nutrientes e vazão do Rio Jaguari, foram utilizados na avaliação das contribuições difusas, com origem rural, às águas superficiais de uma sub-bacia do Rio Jaguari, SP. Modelos de cargas médias diárias de Ntotal e Ptotal
Maria T. C. Mansor   +2 more
doaj   +1 more source

Soil organic carbon and total nitrogen dynamics in paddy soils on the Java Island, Indonesia

open access: yes, 2021
Soil organic carbon is one of the soil quality parameters. Soil organic carbon and total nitrogen play an important role in soil physicochemical fertility.
H. Wibowo, A. Kasno
semanticscholar   +1 more source

Spatiotemporal Changes in Soil Nutrients: A Case Study in Taihu Region of China

open access: yesJournal of Integrative Agriculture, 2014
The accurate assessment of the spatiotemporal changes in soil nutrients influenced by agricultural production provides the basis for development of management strategies to maintain soil fertility and balance soil nutrients.
Lei-lei LIU   +6 more
doaj   +1 more source

Effect of Bacterial Inoculation and of Nitrogen Fertilization on Fodder Quality in Some Grass and Fodder Legume Species

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Increasing the biological nitrogen fixing capacity through inoculation with improved stems of nitrogen fixing bacteria is an important measure of increasing total nitrogen content in legumes due to the supply of fixed nitrogen.
Claudiu Ghiocel   +7 more
doaj  

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