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Integrated nutrient management (INM) for okra (Abelmoschus esculentus (L) Moench) cv. ‘Parbhani Kranti’ under South Gujarat condition

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Title Integrated nutrient management (INM) for okra (Abelmoschus esculentus (L) Moench) cv. ‘Parbhani Kranti’ under South Gujarat condition
 
Creator PATEL, ANKUR P.
 
Contributor PARMAR, P.B.
 
Subject vegetables, organic fertilizers, planting, yields, fertilizers, farmyard manure, nutrients, nitrogen, biological development, crops
 
Description Okra (bhindi or lady’s finger) is one of the important vegetable
in the South Gujarat, an experiment was conducted at the Regional
Horticulture Research Station, Navsari Agricultural University, Navsari,
during the summer seasons of the year 2004 and 2005 to study the response
of “Integrated nutrient management (INM) for okra (Abelmoschus
esculentus (L.) Moench) cv. ‘Parbhani Kranti’ under South Gujarat
condition”. The soil of the experimental field was clay in texture, low in
available N, medium in available P2O5, high in available K2O and was
deficit in zinc having moderately alkaline reaction (pH 7.9). In all twelve
treatments, viz. T1 (100% RDF i.e. 100:50:50 kg N, P2O5, K2O per hectare),
T2 (Farm yard manure (FYM) @ 20 t/ha), T3 (Pressmud (PM) @ 10 t/ha),
T4 (Biocompost (BC) @ 10 t/ha), T5 (75% RDF + FYM @ 20 t/ha), T6 (
50% RDF + FYM @ 20 t/ha), T7 (75% RDF + PM @ 10 t/ha), T8 (50%
RDF + PM @ 10 t/ha), T9 (75% RDF + BC @ 10 t/ha), T10 (50% RDF +
BC @ 10 t/ha), T11 (100% RDF + ZnSO4 @ 25 kg/ha) and T12 (100% RDF
+ FeSO4 @ 50 kg/ha) were evaluated under RBD design with three
replications. Entire quantity of organic manures viz. FYM, pressmud and
biocompost were thoroughly mixed in the respective experimental plots
before a month of sowing and followed by irrigation. Full dose of P2O5,
K2O, ZnSO4 and FeSO4 as well as half dose of the nitrogen were also given
as basal and the remaining half quantity of nitrogen was applied at 30 days
after sowing. Nitrogen was applied in the form of urea; whereas, phosphate
and potash were applied in the form of single super phosphate (SSP) and
muriate of potash (MOP), respectively. Zn and Fe were applied in the form
of zinc sulphate and ferrous sulphate.
The growth parameters were significantly affected due to the
different INM treatments. Days to fifty per cent flowering (33.83 days i.e.
early by 2 to 3 days) and the maximum plant height (96.80 cm) were
recorded under the treatment of 100 % RDF + FeSO4 @ 50 kg/ha.
However, okra plant nourished with the 75% RDF + BC @ 10 t/ha (T9) has
resulted in the higher value of number of branches (5.15), fresh weight
16.68 t/ha), dry weight of pod (1042 kg/ha) and dry weight of plant (2259
kg/ha).
Pod characters of okra were significantly affected under the treatment
of 75% RDF + BC @ 10 t/ha (T9) which produced 11.45 number of pods
per plant, 11.90 cm long and 11.84 g weight of individual pod. Further,
application of 75% RDF + BC @ 10 t/ha was better to have 135.61 g of pod
yield per plant and total pod yield was 11.30 t/ha.
The quality of the okra pod was improved remarkably viz. total
soluble solids (TSS) (2.26%) as well as ascorbic acid (Vitamin C) (21.92
mg/100g) contents were observed with the treatment T11, consisted of
inorganic fertilizer (100% RDF + ZnSO4 @ 25 kg/ha). Lower crude fibre
(9.75 %) and higher crude protein (16.65%) are the desirable character for
quality of okra pod were obtained under the treatment T9 (75% RDF + BC
@ 10 t/ha).
The N, P and K content in pods and plant were significantly
increased with combined application of inorganic fertilizer and organic
manures i.e. 75% RDF + BC @ 10 t/ha; whereas, Zn content was higher in
the treatment zinc sulphate application i.e. 100% RDF + ZnSO4 @ 25 kg/ha
(T11). The total uptake of N (78.08 kg/ha), P2O5 (12.22 kg/ha), K2O (55.82
kg/ha), Zn (234.04 g/ha) and Fe (903.41 g/ha) were significantly higher at
75% RDF + BC @ 10 t/ha (T9). Different INM treatments had nonsignificant
effects on Fe content in pod as well as in plant.
Soil fertility status viz. available N, P2O5, K2O, Zn and Fe content of
soil and organic carbon after harvest of the crop were improved with
addition of organic manure and higher in treatment combination of 75%
RDF + BC @ 10 t/ha. The lower values were observed in inorganic
fertilizers only. Soil physical properties i.e. bulk density (1.69 g/cm3) as
well as water stable aggregates (0.5- 1.0 mm, 24.9 % and > 1.0 mm, 62.8
%) were also improved and thereby the porosity of soil under organic
manure treatments.
On the basis of pooled analysis of yield, the economics of the okra
cultivation with different INM treatment was found significant. The
maximum net return with CBR value of 1:3.12 were achieved under the
treatment T9 (75% RDF + BC @ 10 t/ha) followed by treatment T7 (75%
RDF + PM @ 10 t/ha) with CBR value of 1:3.06. Both these treatments (T6
and T7) were found economical, and proved highly remunerative under the
South Gujarat conditions for growing cv. ‘Parbhani Kranti’, which
gradually improved the soil health.
 
Date 2016-03-05T12:14:03Z
2016-03-05T12:14:03Z
2006-03
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/64851
 
Language en
 
Format application/pdf
 
Publisher Navsari Agricultural University, Navsari