nutrient management for enhancing the productivity of sweet corn in north coastal zone of andhra ...

106 Pages·2016·2.84 MB·English

NUTRIENT MANAGEMENT FOR
ENHANCING THE PRODUCTIVITY OF
SWEET CORN IN NORTH COASTAL ZONE

OF ANDHRA PRADESH

BY

S. KEERTHI
B.Sc. (Ag.)

THESIS SUBMITTED TO THE ACHARYA N. G. RANGA
AGRICULTURAL UNIVERSITY IN PARTIAL FULFILMENT
OF THE REQUIREMENTS FOR THE AWARD OF THE
DEGREE OF

MASTER OF SCIENCE IN AGRICULTURE
(AGRONOMY)

CHAIRPERSON: Dr. A.UPENDRA RAO

DEPARTMENT OF AGRONOMY
AGRICULTURAL COLLEGE, NAIRA - 532 185
ACHARYA N. G. RANGA AGRICULTURAL UNIVERSITY
RAJENDRANAGAR, HYDERABAD - 500 030
2013
DECLARATION

I, Ms. S.KEERTHI, hereby declare that the thesis entitled
“NUTRIENT MANAGEMENT FOR ENHANCING THE
PRODUCTIVITY OF SWEET CORN IN NORTH COASTAL ZONE OF
ANDHRA PRADESH” submitted to the Acharya N. G. Ranga Agricultural
University for the degree of Master of Science in Agriculture in the major
field of Agronomy is the result of original research work done by me. I also
declare that no material contained in the thesis has been published earlier in any
manner.

Place : Naira (S. KEERTHI)
I.D. No. NAM-2011-002
Date:
CERTIFICATE

Ms. S. KEERTHI has satisfactorily prosecuted the course of research
and that thesis entitled “NUTRIENT MANAGEMENT FOR ENHANCING
THE PRODUCTIVITY OF SWEET CORN IN NORTH COASTAL
ZONE OF ANDHRA PRADESH” submitted is the result of original research
work and is of sufficiently high standard to warrant its presentation to the
examination. I also certify that neither the thesis nor its part thereof has been
previously submitted by him for a degree of any University.

Date : (A. UPENDRA RAO)
Place : Chairman
CERTIFICATE

This is to certify that the thesis entitled “NUTRIENT MANAGEMENT
FOR ENHANCING THE PRODUCTIVITY OF SWEET CORN IN
NORTH COASTAL ZONE OF ANDHRA PRADESH” Submitted in partial
fulfillment of the requirements for the degree of Master of Science in
Agriculture of the Acharya N. G. Ranga Agricultural University, Hyderabad is
a record of the bonafide research work carried out by Ms. S. Keerthi under our
guidance and supervision.
No part of the thesis has been submitted by the student for any other
degree or diploma. The published part and all the assistance received during the
course of investigations have been duly acknowledged by the author of the
thesis.
CHAIRMAN
ADVISORY COMMITTEE
(To be signed at the time of final viva-voce)
Thesis approved by the Student Advisory Committee:

Chairman : Dr. A. UPENDRA RAO -----------------------
Senior Scientist (Agronomy) & Head
Agricultural Research Station,
Seethampeta-532443,
SrikakulamDist, Andhra Pradesh.

Member : Dr. A. V. RAMANA ------------------------
Professor & Head
Dept. of Agronomy
Agricultural College,
Naira – 532185.

Member : Dr. D.K. SARKAR -------------------------
Professor & Head
Dept. of Soil Sci & Agrl. Chemistry
Agricultural College,
Naira – 532185.

Date of Final Viva-Voce:
LIST OF CONTENTS
Chapter No. Title Page No.

INTRODUCTION
I

REVIEW OF LITERATURE
II

MATERIAL AND METHODS
III

RESULTS AND DISCUSSION
IV

SUMMARY AND CONCLUSIONS
V

LITERATURE CITED

APPENDICES
LIST OF TABLES

Table Page
Title
No. No.
3.1 Weekly meteorological data during the crop growth period
3.2 Physico-chemical properties of the experimental field
Plant height (cm) of sweet corn at knee high and tasseling
4.1
stages as influenced by nutrient management practices
Number of leaves plant-1 of sweet corn at knee high and
4.2 tasseling stages as influenced by nutrient management
practices
Dry matter production (t ha-1) of sweet corn at different
4.3 growth stages as influenced by different methods of nutrient
management practices
Number of grain rows cob-1, grains row-1 and fresh cob
4.4 weight of sweet corn as influenced by different nutrient
management practices
Cob length and cob girth of sweet corn as influenced by
4.5
different nutrient management practices
Cob yield (t ha-1), stover yield (t ha-1) and protein content of
4.6 sweet corn as influenced by different methods of nutrient
management practices
Nutrient (N,P and K) uptake by sweet corn cob as
4.7
influenced by different nutrient management practices
Nutrient (N, P and K) uptake by stover of sweet corn as
4.8
influenced by different nutrient management
Economics of sweet corn as influenced by nutrient
4.9
management practices
Post-harvest soil fertility status of sweet corn as influenced
4.10
by nutrient management practices
LIST OF ILLUSTRATIONS

Fig.
Page
Title
No.
No.
Standard week wise meteorological data during the crop
3.1
period
3.2 Layout plan of the Experiment
Dry matter production of sweet corn at knee high and
4.1 tasseling stages as influenced by nutrient management
practices
Cob and stover yields of sweet corn as influenced by
4.2
nutrient management practices
Nutrient uptake (N, P and K) by sweet corn cob as
4.3
influenced by nutrient management practices
Nutrient uptake (N, P and K) by stover of sweet corn as
4.4
influenced by nutrient management practices
Post harvest soil nutrient status of sweet corn as influenced
4.5
by nutrient management practices
LIST OF SYMBOLS AND ABBREVIATIONS

@ : At the rate of
B: C ratio : Benefit-Cost Ratio

CD (P=0.05%) : Critical Difference at 5 per cent probability
Cm : Centimetre
CV : Coefficient of Variance
DAS : Days after sowing
dSm-1 : Deci Siemens per metre
0C : Degree Celsius
EC : Electrical Conductivity
et al. : and others
etc. : and so on; and other people/ things
Fig : F igure

g : Grams

g L-1 : Gram per litre

i.e. : Which is to say, in other words
K Potassium

K O : Potassium oxide
2
kg ha-1 : Kilogram per hectare
ML L-1 : Millilitre per litre
m-2 : Per square metre
Max : Maximum
Min : Minimum
Mm : Millimetre
mm : Millimetre

mm day-1 : Millimetre per day
MOP : Muriate of potash
MSL : Mean sea level
M ha : Million hectare

M t : Million tonne
N : Nitrogen
Nm : Nano metre
No. m-2 : Number per square metre
NS : Non-significant
PSB : Psosphorus solubulizing bacteria

P : Phosphorus

P O : Phosphorus pentoxide
2 5
% : Per cent
pH : Negative logarithm of H+ ion concentration
RDF : Recommended dose of fertilizers
RH : Relative humidity
Rs ha-1 : Rupees per hectare
SEm : Standard error of mean
SSP : Single super phosphate
t ha-1 : Tonnes per hectare
TSS : Total soluble sugars
viz., : Namely
LIST OF APPENDICES

Appendix No. Title Page
No.
A Calendar of operations of Experiment
B Crop stand as influenced by nutrient management
practices
C Days to 50 % tasseling influenced by different methods
of nutrient management practices
D Days to maturity influenced by different methods of
nutrient management practices
E Number of cobs plant-1as influenced by different
methods of nutrient management practices
F Cost of cultivation of sweet corn
G Cost of application of nutrients to sweet corn
H Cost / Price (Rs kg-1) of inputs and output of the
experiment