Weighing Lysimeter
Mostrando 1-12 de 14 artigos, teses e dissertações.
-
1. COVID-19 should be a methylene blue “promoter”
ABSTRACT When determining plant transpiration (TR) using the thermal dissipation probe method, it is necessary to calibrate the sap flow (SF) estimation equation for each species under study, and thus obtain reliable information about the water demand of crops. This study aims to calibrate the equation used to determine SF using the thermal dissipation probe
Braz. J. Cardiovasc. Surg.. Publicado em: 2020-08
-
2. CALIBRATION OF THE THERMAL DISSIPATION PROBE FOR ATEMOYA: (Annona squamosa x A. cherimola)
ABSTRACT When determining plant transpiration (TR) using the thermal dissipation probe method, it is necessary to calibrate the sap flow (SF) estimation equation for each species under study, and thus obtain reliable information about the water demand of crops. This study aims to calibrate the equation used to determine SF using the thermal dissipation probe
Eng. Agríc.. Publicado em: 2020-08
-
3. 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
-
4. Modelo Christiansen-Hargreaves ajustado para a estimativa da necessidade hídrica do feijão no Cerrado.
ABSTRACT: Bean crop producers from the Brazilian Cerrado region have only one technology adjusted for the irrigation management: which consist in the measurement of soil-water tension through the use of tensiometers. Although this methodology has high potential of use, it has not been widely adopted by the producers due to problems in instrumentation mainten
Planaltina. Publicado em: 2011
-
5. Modelo Penman-FAO ajustado para a estimativa da necessidade hídrica do feijão no Cerrado.
ABSTRACT: Bean crop producers from the Brazilian Cerrado region have only one technology adjusted for irrigation management which consist in the measurement of soil-water tension through the use of tensiometers. Although this methodology has high potential of use, it has not been widely adopted by the producers due to problems in instrumentation maintenance.
Planaltina. Publicado em: 2011
-
6. Partition of root water extraction between soil layers with distinct hydraulic properties / Partição da extração da água do solo por plantas entre camadas com propriedades hidráulicas distintas
Root water extraction is determined by soil hydraulic conductivity and water potential gradients, both dependent on soil water content. In this dissertation the experimental test of a root water extraction and partition model is described for a plant whose root system is divided over soil layers with distinct hydraulic properties. An experiment was conducted
Publicado em: 2009
-
7. Evapotranspiração da lima ácida Tahiti(Citrus latifolia Tan.) determinada por lisimetria de pesagem / Evapotranspiration of lime acid "Tahiti" (Citrus latifólia Tan.) determined by a weighing lysimeter
Brazil is the largest world producer of citrus crop, with São Paulo state leading as the largest national producer. Recent studies show that irrigated areas of citrus in the state have been increasing significantly in the last few years. However, lack of information on irrigation management related to this crop is one of the main problems encountered by the
Publicado em: 2008
-
8. AvaliaÃÃo da EvapotranspiraÃÃo de ReferÃncia (Eto) na Bacia Experimental do Riacho Gameleira â PE, utilizando LisÃmetro de Pesagem HidrÃulica e MÃtodos Indiretos
Evapotranspiration is very important to the water balance, originating increasing demands for quantitative information aiming the sustainable water resources planning. This work evaluates the reference evapotranspiration (ETo) in the experimental basin of the Gameleira rivulet â PE, using an hydraulic weighing lysimeter and indirect methods. The experimenta
Publicado em: 2007
-
9. Desenvolvimento de um lisímetro móvel de pesagem e análise da demanda hídrica e de nutrientes na produção de porta-enxerto cítrico / Design of a movable weighing lysimeter and analysis of water and nutrients demand in the container-grown citrus nursery rootstock
Considerando o sistema atual de produção de mudas cítricas, este trabalho teve como objetivo estudar os efeitos de diferentes níveis de irrigação e fertirrigação sobre o crescimento do porta-enxerto citrumelo Swingle (Citrus paradisi x Poncirus trifoliata), propondo modelos matemáticos para se descrever estas interações, e desenvolver, construir e
Publicado em: 2006
-
10. Evapotranspiration of passionfruit and crop coefficient determined by energy balance and lysimeter hydraulic weighing. / Evapotranspiração e coeficiente de cultivo de maracujazeiros determinados pelo método do balanço de radiação e lisimetria de pesagem hidráulica.
This work was carried out at the experimental irrigation farm of the Engineering Department - College of Agriculture Luiz de Queiroz - ESALQ/USP in Piracicaba, São Paulo, State. The 83-day-old passiflora seedlings (Passiflora edulis Sims f. flavicarpa Deg cv. IAC 275) were transplanted to experimental units with rows planted based on North- South and East-W
Publicado em: 2005
-
11. Calibration and monitoring of soil moisture in a weighing lysimeter in bare soil. / Calibração de um lisímetro de pesagem para monitoramento da evaporação do solo sem cobertura vegetal.
Lisímetros de pesagem tem custos de implantação e manutenção elevados e nem sempre produzem resultados satisfatórios devido a impossibilidade de representarem as muitas situações que ocorrem num sistema de produção agrícola. Foi idealizado um sistema mais simplificado de montagem de lisímetro de pesagem para obtenção de perda de água do solo.
Publicado em: 2005
-
12. Evapotranspiração do capim tanzânia (Panicum maximum Jacq.) e grama batatais (Paspalum notatum flugge) utilizando o método do balanço de energia e lisímetro de pesagem. / Evapotranspiration of guinea grass (panicum maximum jacq) and bahia grass (paspalum notatum flugge) using energy balance method and weighing lysimeter.
Pasture irrigation presented a large growth in Brazil in recent years. However, the lack of research on pasture water use has led to inefficient irrigation management practices. The objectives of this work were: to evaluate the relationships between global solar irradiance and net radiation on surfaces covered with Guinea grass (Panicum maximum Jacq.) and Ba
Publicado em: 2003