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EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON AFRICAN MARIGOLD (Tagetes erecta L.) CV. PUSA NARANGI

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Title EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON AFRICAN MARIGOLD (Tagetes erecta L.) CV. PUSA NARANGI
 
Creator THUMAR BALUBHAI VALLABHBHA
 
Contributor Barad A. V.
 
Subject INTEGRATED NUTRIENT MANAGEMENT
HORTICULTURE
 
Description A field experiment entitled “Effect of integrated
nutrient management on African marigold (Tegetes erecta L.) cv.
Pusa Narangi” was conducted at Lalbaug, Department of
Horticulture, Junagadh Agricultural University, Junagadh on
medium black calcareous soil, during winter season of two
consecutive years i.e. 2011-12 and 2012-13.
The experiment comprising eleven (11) treatment
combinations consisted of three levels of NPK (70%, 60% and
50% RDF), and three levels of vermicompost (2.0, 3.0 and 4.0
tha-1) with three biofertilizers (Azotobacter, Azospirillum and PSB)
and FYM 15 t ha-1 with RDF and control (only RDF without FYM)
and their combinations were tried in Randomized Block Design
with three replications.
The results of the experiment indicated that,
application of 70 % RDF + 2 t ha-1 vermicompost + Azotobacter +
ABSTRACT
iv
Azospirillium + PSB significantly improved growth parameters
viz., plant height at full bloom stage (115.45 cm), number of
primary branches per plant at full bloom stage (28.06), plant
spread in North-South and East-West directions at full bloom
stage (89.28 and 74.65 cm, respectively), fresh and dry weight
(428.12 and 95.29g, respectively) of the plant.
Treatment T8 (60% RDF + 3 t ha-1 vermicompost +
Azotobacter + Azospirillium + PSB) significantly improved
flowering parameters viz., the shortest number of days taken to
first flower open (53.72 days) and number of picking (9.12), the
shortest number of days taken for 50 % flowering (59.50 days),
the maximum diameter of flower (7.30 cm) and number of flower
per plant (52.52) recorded in treatment T5 (70% RDF + 2 t ha-1
vermicompost + Azotobacter + Azospirillium + PSB), the longest
duration of flowering (61.14 days), was recorded in T4 (70% RDF
+ 2 t ha-1 vermicompost + Azospirillium + PSB), number of ray
florets per flower (147.77) was obtained in treatment T11 (50%
RDF + 4 t ha-1 vermicompost + Azotobacter + Azospirillium +
PSB).
Treatment T5 (70% RDF + 2 t ha-1 vermicompost +
Azotobacter + Azospirillium + PSB) significantly gave higher yield
parameters viz., average weight of flower (7.17g), flower yield per
plant (376.57), flower yield per net plot (12.05 kg), flower yield
per hectare (185.65 q ha-1 ). Quality parameters viz., shelf life of
flower was significantly higher (4.95 days) in treatment T2 (200kg
N ha-1 + 100kg P2O5 ha-1 + 100kg K2O ha-1 + 15 t ha-1 FYM
(RDF)) and vase life of flower (7.79 days) registered significantly
longest under the treatment T11 (50% RDF + 4 t ha-1
vermicompost + Azotobacter + Azospirillium + PSB).
v
Initial and final status in the soil characters viz., soil
reaction (pH), electrical conductivity (EC) and Organic carbon
significantly affected by the different treatments. Treatment T11
(50% RDF + 4 t ha-1 vermicompost + Azotobacter + Azospirillium
+ PSB) was reduced the pH (7.06), Treatment T8 (60% RDF
+ 3 t ha-1 vermicompost + Azotobacter + Azospirillium + PSB)
increased EC (0.50) and treatment T5 (70% RDF + 2 t ha-1
vermicompost + Azotobacter + Azospirillium + PSB) recorded the
highest OC (1.78).
The results of the experiment indicated that, The
maximum (1.36 % and 64.58 kg ha-1) nitrogen content in the
plant and uptake by the plant recorded in treatment T5 (70%
RDF + 2 t ha-1 vermicompost + Azotobacter + Azospirillium + PSB).
Application of 60% RDF + 3 t ha-1 vermicompost + Azotobacter +
Azospirillium + PSB recorded significantly highest (0.426% and
20.37 kgha-1) phosphorus content in the pant and uptake by the
plant. Treatment T11 (50% RDF + 4 t ha-1 vermicompost +
Azotobacter + Azospirillium + PSB) registered significantly highest
(1.93% and 91.86 kgha-1) potassium content in the plant and
uptake by the plant.
The results indicated that, treatment T5 (70% RDF + 2
t ha-1 vermicompost + Azotobacter + Azospirillium + PSB) gave the
maximum (265.11 N kg ha-1), availability of nitrogen. The highest
(34.31 P2O5 kg ha-1 ) availability of phosphorus (P2O5) recorded in
treatment T8 (60% RDF + 3 t ha-1 vermicompost + Azotobacter +
Azospirillium + PSB) and application of 50% RDF + 4 t ha-1
vermicompost + Azotobacter + Azospirillium + PSB (T11) registered
significantly highest (245.74 K2O kg ha-1) availability of
potassium in the soil.
vi
From economic point of view, the highest gross
realization (167083 Rs ha-1) and net realization (126796 Rs ha-1)
was obtained with treatment T5 (70% RDF + 2 t ha-1
vermicompost + Azotobacter + Azospirillium + PSB) as compared
to rest of the treatments. Similar treatment also showed the
highest C.B.R. value (1:3.15).
Results have clearly showed that the cost of
fertilizers can be saved with dual inoculation of Azotobacter,
Azospirillium and PSB, besides, obtaining higher flower yield of
African marigold. The use of bio fertilizers and returns, it
improves the soil structure and texture, reduces pollution of soil
due to reduced fertilizer application is beneficial for the present
problems of high cost of fertilizers and environment pollution.
Therefore, it may be concluded that the use of (70% RDF + 2 t
ha-1 vermicompost + Azotobacter + Azospirillium + PSB) Treatment
(T5) helped in realizing better plant growth, higher quality, flower
yield of African marigold (Tagetes erecta L.) cv. Pusa Narangi”
under open field condition.
 
Date 2016-09-21T17:46:48Z
2016-09-21T17:46:48Z
2013-03
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/78229
 
Language en
 
Format application/pdf