Results 31 to 40 of about 48,432 (298)

Applying the Hargreaves model to Catalpa bignonioides water requirements under drip irrigation on light soil [PDF]

open access: yesJournal of Water and Land Development
This study evaluated the Droogers and Allen modification of the Hargreaves model for estimating potential evapotranspiration (ETp), determining crop coefficients (kc), and assessing the water requirements of Catalpa bignonioides grown in row plantings on
Ariel Łangowski, Roman Rolbiecki
doaj   +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

Simulation of crop evapotranspiration and crop coefficients with data in weighing lysimeters [PDF]

open access: yesAgricultural Water Management, 2016
Abstract Accurate quantification of crop evapotranspiration (ET) is critical to optimizing irrigation water productivity, especially, in the semiarid regions of the world where limited rainfall is supplemented by irrigation for crop production. In this context, cropping system models are potential tools for predicting ET or crop water requirements in
Saseendran S. Anapalli   +6 more
openaire   +1 more source

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

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

Enhancing Water and Soil Resources Utilization via Wolfberry–Alfalfa Intercropping

open access: yesPlants
The impact of the intercropping system on the soil–plant–atmosphere continuum (SPAC), encompassing soil evaporation, soil moisture dynamics, and crop transpiration, remains an area of uncertainty.
Jinghai Wang   +8 more
doaj   +1 more source

Evapotranspiration and water-use efficiency of chilli crop (Capsicum annum L.) in arid environment

open access: yesJournal of Agrometeorology, 2011
Lysimetric studies on chilli crop Capsicum annum L. cv. Haripur and Raipur) were conducted at Jodhpur during three kharif seasons viz., 2006, 2007 and 2008 to determine evapotranspiration requirements during different growth stages under three ...
A. S. RAO
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

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

Growing periods and crop coefficients of garlic and onion.

open access: yes, 2023
Length of initial growing period (Lini), crop development period (Ldev), mid-season period (Lmid), late season period (Llate), and total length of growing period (Ltot) in days, crop coefficients for the initial period (kc ini), mid season (kc mid), end ...
Andreas Buerkert (6541793)   +3 more
core   +1 more source

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