Penman Monteith Method
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Irrigation management based on reference evapotranspiration for pre-sprouted plantlets of sugarcane cultivars
ABSTRACT The pre-sprouted sugarcane plantlets (PSP) system aims the production of healthy and vigorous plants in reduced time, reducing the number of stalks needed for planting. Irrigation is used in all PSP system stages and water management plays an important role. Stage 1 acclimation follows the budding stage and lasts for approximately 21 days. At this s
Bragantia. Publicado em: 2020-06
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2. IRRIGAMETER USE FOR ESTIMATING CROP EVAPOTRANSPIRATION IN PROTECTED ENVIRONMENT
RESUMO Diante das adversidades climáticas associadas à falta de água para irrigação o cultivo em ambiente protegido no Brasil tem apresentado crescimento significativo, que ressalta a demanda de pesquisas que possibilitem estimar precisamente a necessidade de água pelas culturas quando cultivadas nesses ambientes. Assim sendo, objetivou-se avaliar o de
Rev. Caatinga. Publicado em: 21/10/2019
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3. Estimation of the crop coefficient (kc) for bell pepper under greenhouse conditions
RESUMO Objetivou-se com este estudo determinar o coeficiente de cultura (kc) e respectivo consumo de água da cultura do pimentão, híbrido Magali R., cultivado em ambiente protegido no período de maio a setembro de 2015. A evapotranspiração de referência foi estimada pelo método de Penman-Monteith Modificado com dados coletados em estação meteoroló
Rev. bras. eng. agríc. ambient.. Publicado em: 09/09/2019
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4. Reference evapotranspiration based on temperature in Minas Gerais state, Brazil
RESUMO Nas últimas décadas, as áreas de cultivos irrigados no estado de Minas Gerais vêm crescendo bastante, contribuindo assim para aumento da produção agrícola no País. Dentre as técnicas de manejo da irrigação, tem-se a determinação do consumo de água pelas plantas tomando por base a evapotranspiração de referência (ET0), diante disso, ob
Ciênc. agrotec.. Publicado em: 08/08/2019
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5. Crop coefficients of tropical forage crops, single cropped and overseeded with black oat and ryegrass
ABSTRACT: Crop coefficient (Kc) is the ratio between crop evapotranspiration (ETc) and reference evapotranspiration (ETo), representing the phenological effects on crop water consumption. Kc is fundamental to estimating ETc by agrometeorological methods. This research study aimed to determine Kc and ETc values for Guinea grass (Megathyrsus maximus cv. Momba�
Sci. agric. (Piracicaba, Braz.). Publicado em: 30/05/2019
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6. Spatial variability of coffee plant water consumption based on the SEBAL algorithm
ABSTRACT: Awareness of evapotranspiration (ET) and crop coefficient (Kc) is necessary for irrigation management in coffee crops. ET and Kc spatial variabilities are disregarded in traditional methods. Methods based on radiometric measurements have potential to obtain these spatialized variables. The Kc curve and spatial variability of actual evapotranspirati
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-04
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7. Multivariate adaptive regression splines (MARS) applied to daily reference evapotranspiration modeling with limited weather data
ABSTRACT. Estimation of reference evapotranspiration (ETo) is very relevant for water resource management. The Penman-Monteith (PM) equation was proposed by the Food and Agriculture Organization (FAO) as the standard method for estimation of ETo. However, this method requires various weather data, such as air temperature, wind speed, solar radiation and rela
Acta Sci., Agron.. Publicado em: 28/03/2019
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8. Penman-Monteith with missing data and Hargreaves-Samani for ETo estimation in Espírito Santo state, Brazil
RESUMO O método de Penman-Monteith (PM-FAO) é recomendado como padrão para cálculo da evapotranspiração de referência (ETo). Contudo, a sua utilização requer uma série de variáveis meteorológicas que normalmente não estão disponíveis, restringindo sua aplicação em muitos locais. Uma solução para o problema de indisponibilidade de dados met
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-03
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9. GREEN ROOF: SIMULATION OF ENERGY BALANCE COMPONENTS IN RECIFE, PERNAMBUCO STATE, BRAZIL
ABSTRACT Green roof is a technology that consists of the use of soil and vegetation installed in the roof of buildings, being a great solution to combat heat islands. Thus, this study aimed to compare micrometeorological changes and their effect on the energy balance of non-vegetated (slab) and vegetated building roofs by means of a simulation model calculat
Eng. Agríc.. Publicado em: 2018-06
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10. On the performance of three indices of agreement: an easy-to-use r-code for calculating the Willmott indices
ABSTRACT A key step for any modeling study is to compare model-produced estimates with observed/reliable data. The original index of agreement (also known as original Willmott index) has been widely used to measure how well model-produced estimates simulate observed data. However, in its original version such index may lead the user to erroneously select a p
Bragantia. Publicado em: 22/03/2018
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11. REFERENCE EVAPOTRANSPIRATION FORECASTING BY ARTIFICIAL NEURAL NETWORKS
ABSTRACT: Evapotranspiration (ET) is the main component of water balance in agricultural systems and the most active variable of the hydrological cycle. In the literature, few studies have used the forecast the day before via Artificial Neural Networks (ANNs) for the northern region of São Paulo state, Brazil. Therefore, this aimed to predict the reference
Eng. Agríc.. Publicado em: 2017-12
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12. DIFFERENT SOYBEAN PLANT POPULATIONS UNDER CENTRAL PIVOT IRRIGATION
ABSTRACT Planting density can influence the competitiveness among plants mainly by water, nutrients and solar radiation, directly affecting yield. The purpose of this study was to evaluate the productivity of different soybean cultivars at different planting populations under irrigated and rainfed conditions. The experiment was conducted during the 2014/15 g
Eng. Agríc.. Publicado em: 2017-06