Results 11 to 20 of about 23,239 (141)

Long-Term Concentrations and Loads of Four Dissolved Macronutrients from Two Agroforestry Catchments in NW Spain

open access: yesHydrology, 2021
Understanding hydrological processes controlling stream chemistry and quantifying solute concentrations over time is crucial for estimating future alterations of water quality due to land use or climate change impacts, as well as for setting preventive ...
Rosane da Silva Dias   +2 more
doaj   +1 more source

Effects of the Annual Nitrogen Fertilization Rate on Vine Performance and Grape Quality for Winemaking: Insights from a Meta‐Analysis

open access: yesAustralian Journal of Grape and Wine Research, Volume 2023, Issue 1, 2023., 2023
Sustainability in grapevine cultivation requires the precise use of water and fertilizers, particularly nitrogen (N), to produce grapes of the highest quality for winemaking, while simultaneously avoiding harm to the surrounding waters and atmosphere by reducing NO3− losses and N2O and NH3 emissions from the vineyards.
Fernando Visconti   +3 more
wiley   +1 more source

Calidad del agua para riego y suelos agrícolas en Tuxcacuesco, Jalisco [PDF]

open access: yesIdesia (Arica), 2016
espanolEl objetivo del presente estudio fue analizar la calidad del agua para riego y suelos agricolas del municipio de Tuxcacuesco. Se realizaron muestreos compuestos de ambos recursos durante Junio de 2015, las colectas se analizaron en el laboratorio de suelos del CUCSUR, se estimaron pH, CE, Ca2+, Mg2+, Na, K, CHO3(2+), HCO3, SO4(2-) y Cl; los ...
Medina Valdovinos, Edna Karen   +5 more
openaire   +2 more sources

Effectiveness of inorganic and organic mulching for soil salinity and sodicity control in a grapevine orchard drip-irrigated with moderately saline waters

open access: yesSpanish Journal of Agricultural Research, 2014
Soil mulching is a sensible strategy to reduce evaporation, accelerate crop development, reduce erosion and assist in weed control, but its efficiency for soil salinity control is not as well documented.
Ramón Aragüés   +2 more
doaj   +1 more source

UAV Detection of Sinapis arvensis Infestation in Alfalfa Plots Using Simple Vegetation Indices from Conventional Digital Cameras

open access: yesAgriEngineering, 2020
Unmanned Aerial Vehicles (UAVs) offer excellent survey capabilities at low cost to provide farmers with information about the type and distribution of weeds in their fields.
Luis Fernando Sánchez-Sastre   +6 more
doaj   +1 more source

Reconocimiento y evaluación para riegos de los suelos de la comarca de Andujar (Jaén) (Escala 1:50.000) [PDF]

open access: yes, 1968
67 páginas.-- 14 perfiles de suelos.-- Memoria presenta en el V Curso Internacional de Edafología y Biología VegetalEste estudio resume las características morfológicas y analíticas de los suelos que constituyen el área del proyecto, principalmente para
Díaz R., Rodrígo, Marín C., Eduardo
core   +1 more source

Agronomic and Economic Potential of Vegetation Indices for Rice N Recommendations under Organic and Mineral Fertilization in Mediterranean Regions

open access: yesRemote Sensing, 2018
Rice (Oryza sativa L.) farmers in Mediterranean regions usually apply organic or mineral fertilizers before seeding that are supplemented with mineral nitrogen (N) later in the season.
Beatriz Moreno-García   +3 more
doaj   +1 more source

Sustentabilidad del riego complementario en suelos Udipsament Típico y Hapludol Entico de Argentina [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2006
El riego complementario con aguas sódicas conduce a procesos dispersivos que deterioran el espacio poroso y con ello otras propiedades relacionadas. Esto podría producirse con bajos a medios niveles de RAS del agua, en suelos gruesos, cuando la illita domina la fracción arcilla.
Vázquez, Mabel   +2 more
openaire   +4 more sources

Feasibility of using pyranometers for continuous estimation of ground cover fraction in table grape vineyards

open access: yesSpanish Journal of Agricultural Research, 2014
This paper evaluates the feasibility of using pyranometers for continuous estimation of ground cover fraction (GCF) at remote, unattended sites. Photographical techniques were used for measuring GCF (GCFref) at a table grape vineyard grown under a net ...
Antonio Martinez-Cob   +4 more
doaj   +1 more source

Análisis de susceptibilidad por movimientos en masa implementando el método Mora-Vahrson modificado para el casco urbano de Chemesquemena, Cesar, Colombia

open access: yesTecnura, 2023
Objetivo: Analizar la susceptibilidad de las laderas frente a la ocurrencia de movimientos en masa, con la implementación de la metodología Mora-Vahrson adaptada para el corregimiento de Chemesquemena, ubicado dentro del Resguardo Indígena Kankuamo ...
Valentina Ortiz Maestre   +3 more
doaj   +1 more source

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