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Optimal number and discharge rate of emitters for coconut palm in sandy loam soil (Record no. 26686)

MARC details
000 -LEADER
fixed length control field	02903nam a2200181Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field	OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field	20220829114734.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field	140128s9999 xx 000 0 und d
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number	631.3
Item number	PRI/OP
100 ## - MAIN ENTRY--PERSONAL NAME
Personal name	Priya Nair G
245 ## - TITLE STATEMENT
Title	Optimal number and discharge rate of emitters for coconut palm in sandy loam soil
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc.	Tavanur
Name of publisher, distributor, etc.	Department of Irrigation and Drainage Engineering, Kelappaji College of Agricultural Engineering and Technology
Date of publication, distribution, etc.	2000
502 ## - DISSERTATION NOTE
Degree type	MTech.
520 3# - SUMMARY, ETC.
Summary, etc.	AgricullurClI productivity is based on the availability of required water at <br/>proper time. As water is becoming Cl limited resource its efficient utilization is very <br/>essential. The distribution of rainfall in Kcrala is not adequate to meet the total <br/>welter requirement of coconut. Coconut in Kerala are mostly grown in sandy soils <br/>which has a poor water holding capacity. So drip irrigation is the best method of <br/>irriqation for coconut in this soil. The efficient design of drip irrigation system <br/>involves the optimal spacing of emitters, correct discharge rate anr' duration of <br/>inigc\lion based on the movement of soil moisture front. So the study of moisture <br/>distribution pattern under chip irriU(ltion is helpful in deciding optimum number and <br/>discharge rate of emitters and duration of irriqation required for coconut palms <br/>The study was conducted in the river side coconut gc)rdr.n of the <br/>instruclional Farm, I~CAET, TaVilrH1I. The size of the plot was 28x63m. The soil <br/>properties viz texture. bulk dcn-itv. infiltration rate, field capacity. hydraulic <br/>conductivity and permanent \vi!;JI1q point were observed. The drip system was <br/>installed in the fielc! Two different c!ischarge rates (4 and 8lph) and three <br/>f <br/>combination of number of emitters (3,<'1 & 6) were selected for the study. The <br/>maximum vertical and horizontal advance of soil moisture front for both the <br/>discharge rates (4 and 8 Iph) were noted. Empirical equations were also developed <br/>for both vertical and horizontal advance. The soil moisture contents were <br/>determined at different horizontal anc! vertical distances from the emitter, before <br/>irriqation, 1 hour, 24 hours and 3 days after irrigation by gravimetric method. The <br/>soil moisture contour maps were plotted and the moisture distribution efficiency <br/>was calculated for each treatment at all depths. <br/>The maximum vertical and horizontal advance was observed for 8 lph <br/>emitter compared to 4 Iph emitter. The welting front from a single emitter produced <br/>C\ bulb like \Netting pattern for both the discharges. The size of the wetting bulb <br/>increased with increase in discharge rate. The study revealed that 4 numbers of 8 <br/>Iph emitters give more uniform distribution compared to all the other treatments. <br/><br/>
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name	Suseela P (Guide)
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier	<a href="http://krishikosh.egranth.ac.in/handle/1/5810104445">http://krishikosh.egranth.ac.in/handle/1/5810104445</a>
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme	Dewey Decimal Classification
Koha item type	Theses

Holdings
Withdrawn status	Lost status	Source of classification or shelving scheme	Damaged status	Not for loan	Home library	Current library	Shelving location	Date acquired	Total Checkouts	Full call number	Barcode	Date last seen	Price effective from	Koha item type
		Dewey Decimal Classification			KAU Central Library, Thrissur	KAU Central Library, Thrissur	Theses	18/03/2014		631.3 PRI/OP	171745	18/03/2014	18/03/2014	Theses