Effects of Subsurface Drip Irrigation Flow Rates and Emitter Spacing on Sugarcane Water Uptake and Production in Florida...

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Material Information

Title:
Effects of Subsurface Drip Irrigation Flow Rates and Emitter Spacing on Sugarcane Water Uptake and Production in Florida Alfisols
Physical Description:
1 online resource (98 p.)
Language:
english
Creator:
Villalobos Leandro, Jose Eduardo
Publisher:
University of Florida
Place of Publication:
Gainesville, Fla.
Publication Date:

Thesis/Dissertation Information

Degree:
Master's ( M.S.)
Degree Grantor:
University of Florida
Degree Disciplines:
Soil and Water Science
Committee Chair:
MORGAN,KELLY T
Committee Co-Chair:
MCCRAY,JAMES M
Committee Members:
HANLON,EDWARD A,JR

Subjects

Subjects / Keywords:
alfisols -- drip -- irrigation -- production -- sugarcane -- transpiration
Soil and Water Science -- Dissertations, Academic -- UF
Genre:
Soil and Water Science thesis, M.S.
bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract:
Sugarcane (Saccharum officinarum) production in Florida is the fourth largest commodity with approximately 14 million metric tons of harvested cane per year. Understanding of proper irrigation management in sandy soils is crucial due to the increasingly stringent water management required by the state government given the expected increase of sugarcane planted area. Drip irrigation is an alternative worthy of consideration for sugarcane production to promote higher water use efficiency compared with current seepage irrigation practices. A drip irrigation study was conducted using a commercial sugarcane cultivar (CP-78-1628) planted with three different emitter spacing; 31 cm, 46 cm, and, 61 cm, defined as treatment 1, 2, and 3; respectively. Soil showed a more uniform moisture distribution through the profile for treatments 1 and 2 compared to treatment 3. Moisture uniformity enhanced a higher water uptake when using a shorter emitter spacing Peak water uptake was recorded from 12 pm to 6 pm for all treatments. The root scanning method indicated a high correlation with the intersection method but no differences for RLD were found between treatments due to high root variability. Yield, as well as plant nutrient concentrations, increased for treatments 1 and 2 compared to treatment 3. The results from this study indicate that the Kc for treatments 1 and 2 (31 and 46 cm emitter spacing) were similar to published values for other sugarcane production areas. However, Kc for the widest spaced emitters (61 cm) was lower, indicating reduced water use correlating with lower growth, yield, and nutrient accumulation. Taken together, these results indicate that drip irrigation of sugarcane in sandy soils of south Florida at 31 and 46 cm (12 to 18 inches) between emitters is a viable alternative to surface or seep irrigation.
General Note:
In the series University of Florida Digital Collections.
General Note:
Includes vita.
Bibliography:
Includes bibliographical references.
Source of Description:
Description based on online resource; title from PDF title page.
Source of Description:
This bibliographic record is available under the Creative Commons CC0 public domain dedication. The University of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Statement of Responsibility:
by Jose Eduardo Villalobos Leandro.
Thesis:
Thesis (M.S.)--University of Florida, 2014.
Local:
Adviser: MORGAN,KELLY T.
Local:
Co-adviser: MCCRAY,JAMES M.
Electronic Access:
RESTRICTED TO UF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE UNTIL 2014-11-30

Record Information

Source Institution:
UFRGP
Rights Management:
Applicable rights reserved.
Classification:
lcc - LD1780 2014
System ID:
UFE0046749:00001