Cropping in arid area greenhouse by G. Sharan and Kamlesh Jethva ( Working Paper No. 2006-12-03 1994) (Record no. 72086)

MARC details
000 -LEADER
fixed length control field 02205nam a2200193Ia 4500
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 140323b2006 xxu||||| |||| 00| 0 eng d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number WP 2006-12-03 (1994)
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Girja Sharan
9 (RLIN) 67076
245 ## - TITLE STATEMENT
Title Cropping in arid area greenhouse by G. Sharan and Kamlesh Jethva ( Working Paper No. 2006-12-03 1994)
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Ahmedabad
Name of publisher, distributor, etc. Indian Institute of Management
Date of publication, distribution, etc. 2006
300 ## - PHYSICAL DESCRIPTION
Extent 16 p.
520 ## - SUMMARY, ETC.
Summary, etc. In hot, arid regions, yields are low and unstable, growing season limited to one. Greenhouses can stabilize and improve yields and extend seasons. But their adoption is impeded by the requirement of large amount of water for (evaporative) cooling. Arid Area Greenhouse (AAG) is being developed to reduce or eliminate this need by employing earth-tube-heat-exchanger (ETHE). A prototype AAG was installed in the year 2002 at village Kothara (kा 23ंX 14 N, kी 68ंX 45 E, at 21 m a.s.l.). AAG is of 20 X 6 X 3.5 m size. ETHE is buried 3m deep and coupled to AAG in closed-loop. ETHE provides 20 air changes per hour. There is provision of closable vents - two along the base of long sides and one along the ridge. A retractable shading curtain is provided over the roof. By now five rounds of cropping have been done. ETHE was able to heat the greenhouse from 9ंX C to 22-23ंX C in half hour in the cold winter nights. Static ventilation along with shading was effective for day time control till early March. Subsequently ETHE was operated. It limited the greenhouse temperature gain to just 2.5ंX C. Yield of tomato was 1.5 to 2 times, water used 44% of that in open-field. Water used was mostly for plants, only a small part was for floggers which were some times needed as supplement. ETHE and natural ventilation hold promise as environmental control devices for greenhouses in hot arid regions.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Arid environment
9 (RLIN) 75813
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Greenhouse
9 (RLIN) 60516
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Earth Tube Heat Exchanger
9 (RLIN) 74273
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Jethva, Kamlesh
9 (RLIN) 75814
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Working Paper
952 ## - LOCATION AND ITEM INFORMATION (KOHA)
-- 00000.00
-- INR
-- 23/12/2006
Holdings
Price effective from Barcode Date last seen Damaged status Withdrawn status Current library Lost status Full call number Date acquired Not for loan Source of classification or shelving scheme Koha item type Home library Total Checkouts
04/09/2009 WP001994 04/09/2009     Vikram Sarabhai Library   WP 2006-12-03 (1994) 05/05/2009   Dewey Decimal Classification Working Paper Vikram Sarabhai Library  
04/09/2009 WP001994 04/09/2009     Vikram Sarabhai Library   WP 2006-12-03 (1994) 05/05/2009   Dewey Decimal Classification Working Paper Vikram Sarabhai Library