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EFFECT OF GRADED LEVELS OF NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND QUALITY OF GARDEN PEA (Pisum sativum L.)

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Title EFFECT OF GRADED LEVELS OF NITROGEN AND PHOSPHORUS ON GROWTH, YIELD AND QUALITY OF GARDEN PEA (Pisum sativum L.)
 
Creator VIJAYA LAKSHMI, G
 
Contributor PADMANABHAM, V
 
Subject EFFECT, GRADED, LEVELS, NITROGEN, PHOSPHORUS,
 
Description A field experiment in factorial RBD was conducted
during Rabi, 1988 on sandy loam soil (pH 7.8,
available N 150.0 kg/ha available P 22 kg/ha and available
K 174 kg/ha) at Botanical cum Horticultural
garden, College of Agriculture, Rajendranagar, Hyderaba~
to evaluate the effect of graded levels of N and P
application each at 4 levels viz., 0, 15, 30 and 45 kg
N/ha and 0, 30, 60 and 90 kg P2o5/ha respectively. on
growth yield and quality of garden pea cv. Bonneville
when compared with control (NoPo). Nitrogen was supp~ed
through urea and phosphorus through single superphosphate.
A uniform basal dose of 40 kg K20/ha was
given to all the experimental plots. Ten plants were
selected at random and observations were taken. The
plant samples were analysed for different constituents
adopting standard procedures.
The plant height, number of branches, number of
leaves, number of flowers, number of node at which first
blossom appeared, ~umber of pods, length of pod, weight
of pod, 100 seed weight, shelling percentage, development
of seeds, N, P, K composition of plants, N,P,K
uptake by plant, yield and quality showed significant
response to N and P application. The maximum significant
response was observed with application of 45 kg
N/ha + 30 kg P2o5/ha. The per cent pod set was unaffected
by fertiliza~ion.
""\,
In general, there was marked increase in the
content of N, P and K in the plant as well as seeds and
also uptake of N, P and K with fertilization when compared
to control. Increasing levels of N improved these
characters but incremental levels of P did not show any
influence. Nitrogen content was improved significantly
both at flowering and at harvest by N45 which was superior
to other levels of N. P content was improved
markedly upto N10 at flowering. At harvest levels of N
did not exert any influence on P content. N30 improved
K uptake both at flowering and at harvest and was at par
withN45 and both were superior to N15 N, P and K uptake
continu~d till the harvest of the crop but it was
decreased towards harvest when compared with that at
flowering. N uptake ranged from 30.70 to 82.53 kg/ha
and 37.52 to 78.17 kg/ha at flowering and at harvest
respectively . K uptake at flowering and at harvest
ranged from 9.28 to 27.58 kg/ha at flowering and from
11.09 to 27.72 kg/ha at harvest. Uptake of P ranged
from 2.9 to 5.~ kg/ha and from 2.74 to 5.53 kg/ha at
flowering and at harvest respectively.
Protein content in grain as well as leaves was
significantly improved by application of fertilizers
over control. Protein content was improved by increasing
levels of N but was unaffected by incremental doses
of P. The seed protein in general ranged from 22.41 to
31.23%. The highly nutritive leaves will serve as
valuable animal fodder.
Plant total sugars and reducing sugars were
influenced by fertilization over control. Total sugars
in seed ranged from 3.08 to 3.64%. Total sugars were
unaffected by levels of N and P. Per cent reducing
sugars decreased with delay in harvest. Reducing sugars
were increased with increasing levels of P while different
doses of N did not influence the character.
From the results it can inferred that the response
to increasing levels of N was due to the low N
status of the soil. With the application of P though
there was response, it was limited to 30 kg P2o5/ha and
this was probably because of moderate level of P in
soil. Study of all characters in relation to each other
showed that application of 45 kg N/ha along with 30 kg
P2o5/ha is optimum to elicit desired growth, yield and
quality from garden pea cv. Bonneville grown on sandy
loam with irrigation under Hyderabad conditions.
 
Date 2016-08-10T13:16:25Z
2016-08-10T13:16:25Z
1990
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/71870
 
Language en
 
Relation D3193;
 
Format application/pdf
 
Publisher ACHARYA NG RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR HYDERABAD