Studies on the Moisture Retention Characteristics of Alluvial soils of Kerala (Record no. 25939)

000 -LEADER
fixed length control field 02160nam a2200181Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20220823144259.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 140128s9999 xx 000 0 und d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 630
Item number PRA/ST
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name Prameela K P
245 ## - TITLE STATEMENT
Title Studies on the Moisture Retention Characteristics of Alluvial soils of Kerala
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Vellanikkara
Name of publisher, distributor, etc. Department of Agronomy, College of Horticulture
Date of publication, distribution, etc. 1983
502 ## - DISSERTATION NOTE
Degree type MSc
520 3# - SUMMARY, ETC.
Summary, etc. An experiment was conducted in the College of Horticulture, Vellanikkara during the period from September 1982 to July 1983 to study the moisture retention characteristics of alluvial soils of Kerala. Soil samples representing five series located at different districts were collected from fifteen profiles at five depths. Moisture contents were determined at six applied pressures, viz., 0.3, 1, 3,5,10 and 15 bars. The moisture retention was correlated with the organic carbon content and texture of the soil by simple and multiple regression analysis.
The study revealed that 50 per cent of the available moisture was depleted at a tension just above one bar, and at 3 bar more than 70 per cent of the available water was extracted. The ranges in the field capacity and permanent wilting point were found to be 21.4 to 32.2 and 12.1 to 16.9 respectively, and the overall mean values 25.8 and 13.9.
The correlation study showed that the fine fractions (clay and silt) have significant positive correlation with moisture retention. Both coarse and fine sand fractions gave significant negative correlation. The relationship of organic carbon content with moisture retention and available water was positive, but not significant even at five per cent level.
Prediction equations were developed to determine the available moisture content from known value of textural components and organic carbon content. The coefficients of determination obtained were high indicating that the difference in the quality of soil organic matter and fine fractions in the alluvial soils are not substantial.
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Vikraman Nair R (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier http://krishikosh.egranth.ac.in/handle/1/5810102648
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Theses
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Permanent Location Current Location Shelving location Date acquired Full call number Barcode Date last seen Price effective from Koha item type
          KAU Central Library, Thrissur KAU Central Library, Thrissur Theses 2014-03-18 630 PRA/ST 170984 2014-03-18 2014-03-18 Theses
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