Results 21 to 30 of about 1,099 (177)

Study on Concentration and Distribution Characteristics of Bisphenol Compounds in Irrigation Ditch Water

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Bisphenol compounds of different origins have been found in many terrestrial ecosystems in across China. Their accurate detection is a key to mitigating their impact on the environment. In this paper, we present an improved method to reliably
LUO Huili   +3 more
doaj   +1 more source

Properties of Humic Acids in Meadow Soils Irrigated with the Slope-and-Flooding System

open access: yesAgronomy, 2021
The still-advancing soil degradation and the related losses of soil organic carbon stocks due to the limited inflow of organic residues in agro-ecosystems encourage more and more soil protection.
Magdalena Banach-Szott   +2 more
doaj   +1 more source

Development process and trend of medium and low yield field reconstruction in Shaanxi Province [PDF]

open access: yesE3S Web of Conferences, 2023
The transformation of medium and low yield grain fields is an important part of cultivated land regulation, which is basically consistent with the requirements of high standard farmland construction. The cultivated land consolidation has experienced from
Lei Na, Li Yanan, Zhang Jing
doaj   +1 more source

Detour canal, a civil engineering heritage created through historical struggle for water resources, now provides the habitats for a rare freshwater fish [PDF]

open access: yesBiodiversity Data Journal
The Ariake catfish, Tachysurus aurantiacus, is a freshwater fish endemic to Kyushu Island, Japan. However, these catfish are now endangered owing to environmental changes.
Yohei Yamasaki   +4 more
doaj   +3 more sources

Head ditch hydraulics and the variability of inflows to irrigation furrows [PDF]

open access: yesIrrigation and Drainage, 2009
AbstractThe spatial variability and temporal variation of furrow inflows have a major impact on the performance of furrow irrigation, as indicated by the usual measures of application efficiency and uniformity. They also cause difficulties in determining the soil infiltration characteristic through inverse solution techniques and in selecting preferred
Smith, R. J., Gillies, M. H.
openaire   +2 more sources

Zeolite as a Tool to Recycle Nitrogen and Phosphorus in Paddy Fields under Straw Returning Conditions

open access: yesAgronomy, 2023
Excess nitrogen (N) caused by straw returning to paddy fields undergoing flooding irrigation deteriorates the water quality. The purpose of this research was to use both simulated field and pot experiments to explore a new approach using zeolite to ...
Weiyu Hu   +3 more
doaj   +1 more source

Laboratory Tests of Water Level Regulators in Ditches of Irrigation Systems

open access: yesWater, 2022
Observed changes in hydrological conditions indicate the need for economical use of water. This pertains to water management on a national scale, river basins and drainage systems. The outflow of water can be extensively regulated after various forms of retention in the catchment.
Janusz Urbański   +5 more
openaire   +1 more source

1-D versus 2-D Entropy Velocity Law for Water Discharge Assessment in a Rough Ditch

open access: yesEntropy, 2018
Water discharge assessment in open channel flow is one of the most crucial issues for hydraulic engineers in the fields of water resource management, river dynamics, ecohydraulics, irrigation, and hydraulic structure design, among others.
Michele Greco, Giovanni Martino
doaj   +1 more source

Investigating irrigation system by using drainage water in the cultivation of repeated millet crop [PDF]

open access: yesBIO Web of Conferences
This scientific article shows the results and results of research on harvesting quality crops efficiently and repeatedly in the condition of water shortage, as well as irrigating system with supply of different quality water in order to improve the ...
Isaev S.X.   +6 more
doaj   +1 more source

Analytical Tool for Quality Control of Irrigation Waters via a Potentiometric Electronic Tongue

open access: yesChemosensors, 2023
A potentiometric electronic tongue (ET) for the analysis of well and ditch irrigation water samples is herein proposed. The sensors’ array is composed of six ion-selective electrodes based on plasticized polymeric membranes with low selectivity profiles,
Marina Miras   +4 more
doaj   +1 more source

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