Results 31 to 40 of about 3,658,397 (347)

Projection of irrigation water demand based on the simulation of synthetic crop coefficients and climate change

open access: yesHydrology and Earth System Sciences, 2020
. In the context of major changes (climate, demography, economy, etc.), the southern Mediterranean area faces serious challenges with intrinsically low, irregular, and continuously decreasing water resources.
M. Le Page   +6 more
semanticscholar   +1 more source

Specific interactions leading to transgressive overyielding in cover crop mixtures [PDF]

open access: yes, 2017
Growing mixtures of species instead of sole crops is expected to increase the ecosystem services provided by cover crops. This study aimed at understanding the interactions between species and investigating how they affect the performance of the mixture.
Amossé, Camille   +5 more
core   +2 more sources

Determination of Actual Evapotranspiration and Crop Coefficients of California Date Palms Using the Residual of Energy Balance Approach

open access: yesWater, 2020
As water scarcity becomes of greater concern in arid and semi-arid regions due to altered weather patterns, greater and more accurate knowledge regarding evapotranspiration of crops produced in these areas is of increased significance to better manage ...
A. Montazar   +6 more
semanticscholar   +1 more source

Assessing Olive Evapotranspiration Partitioning from Soil Water Balance and Radiometric Soil and Canopy Temperatures

open access: yesAgronomy, 2018
Evapotranspiration (ETc) partitioning and obtaining of FAO56 dual crop coefficient (Kc) for olive was carried out with the SIMDualKc software application for root zone and topsoil soil water balance based on the dual crop coefficients.
Francisco L. Santos
doaj   +1 more source

Determination of crop coefficients and optimum irrigation schedules for bidi tobacco and pearl millet crops in central Gujarat

open access: yesJournal of Agrometeorology, 2012
An attempt was made to determine the rate of ETc and crop coefficients during various growth stages of bidi tobacco and pearl millet crops in central Gujarat by water balance approach.
B. KRISHNA RAO   +6 more
doaj   +1 more source

Regional Concentration and Specialisation in Agricultural Activities in EU-9 Regions (1950-2000) [PDF]

open access: yes, 2010
Both traditional (von Thünen) and modern (Hayami & Ruttan, Krugman) theories on land use suggest that productions with a high value added per unit of land tend to be located near urban centres.
Strijker, Dirk   +2 more
core   +8 more sources

Produtividade de grãos, óleo e massa seca de girassol sob diferentes lâminas de irrigação suplementar Grain yield, oil and dry matter of sunflower under different depths of supplementary irrigation

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2012
Este trabalho foi realizado na Universidade Estadual de Maringá, Campus Regional de Umuarama, PR, no ano agrícola de 2008/2009, com o objetivo de avaliar o desenvolvimento da cultura e a eficiência de uso da irrigação em produtividades de grãos, óleo e ...
Eder P. Gomes   +5 more
doaj   +1 more source

Evaluating spatial and temporal variations in sub-field level crop water demands

open access: yesFrontiers in Agronomy, 2022
Variable rate irrigation (VRI) requires accurate knowledge of crop water demands at the sub-field level. Existing VRI practices commonly use one or more variables like soil electrical conductivity, historical yields, and topographic maps to delineate ...
Travis Wiederstein   +6 more
doaj   +1 more source

Mulching effects on soil evaporation, crop evapotranspiration and crop coefficients: a review aimed at improved irrigation management

open access: yesIrrigation science
Mulching is a widely adopted agronomic practice, often used as a water-saving strategy due to its effectiveness in reducing soil evaporation. However, effects vary depending on the materials used and the extent of mulch soil coverage.
Tiago B. Ramos   +2 more
semanticscholar   +1 more source

Manejo de água em arroz de terras altas no sitema de plantio direto, usando o tanque classe A Water management strategies on upland rice in no-tillage system, using the pan evaporation method

open access: yesEngenharia Agrícola, 2004
O presente trabalho teve como objetivo estudar o efeito do manejo de água em cultivares de arroz de terras altas no sistema de plantio direto, usando o tanque Classe A.
Ricardo A. F. Rodrigues   +2 more
doaj   +1 more source

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