Diurnal and seasonal variation of CWSI with cotton in northeast of Brazil

B. B. da Silva, Donald C Slack

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A field experiment was conducted with a cotton crop subjected to two different irrigation treatments. The objective was to evaluate diurnal and seasonal variation of Crop Water Stress Index - CWSI based on the energy balance and its feasibility in irrigation water management. Measurements of canopy and air temperature, net radiation, wind speed, and water vapor pressure were made daily at 9h30 and 13h30, and many diurnal cycles at hourly interval between 6 h to 17 h. Porometric measurements were also used to evaluate the crop resistance. It was concluded that irrigation should be made when the CWSI reaches 0.3.

Original languageEnglish (US)
Title of host publicationPaper - American Society of Agricultural Engineers
Editors Anon
PublisherASAE
Volume2
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3) - Minneapolis, MN, USA
Duration: Aug 10 1997Aug 14 1997

Other

OtherProceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3)
CityMinneapolis, MN, USA
Period8/10/978/14/97

Fingerprint

Vapor Pressure
Steam
diurnal variation
Dehydration
Brazil
cotton
seasonal variation
Air
Radiation
Temperature
Water
crops
irrigation
vapor pressure
water vapor
irrigation management
wind speed
energy balance
air temperature
water stress

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)

Cite this

da Silva, B. B., & Slack, D. C. (1997). Diurnal and seasonal variation of CWSI with cotton in northeast of Brazil. In Anon (Ed.), Paper - American Society of Agricultural Engineers (Vol. 2). ASAE.

Diurnal and seasonal variation of CWSI with cotton in northeast of Brazil. / da Silva, B. B.; Slack, Donald C.

Paper - American Society of Agricultural Engineers. ed. / Anon. Vol. 2 ASAE, 1997.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

da Silva, BB & Slack, DC 1997, Diurnal and seasonal variation of CWSI with cotton in northeast of Brazil. in Anon (ed.), Paper - American Society of Agricultural Engineers. vol. 2, ASAE, Proceedings of the 1997 ASAE Annual International Meeting. Part 1 (of 3), Minneapolis, MN, USA, 8/10/97.
da Silva BB, Slack DC. Diurnal and seasonal variation of CWSI with cotton in northeast of Brazil. In Anon, editor, Paper - American Society of Agricultural Engineers. Vol. 2. ASAE. 1997
da Silva, B. B. ; Slack, Donald C. / Diurnal and seasonal variation of CWSI with cotton in northeast of Brazil. Paper - American Society of Agricultural Engineers. editor / Anon. Vol. 2 ASAE, 1997.
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