EFFECT OF INORGANIC FERTILIZERS IN COMBINATION WITH BIOFERTILIZERS ON GROWTH, YIELD AND QUALITY OF BEETROOT (Beta vulgaris L.) cv. CRIMSON GLOBE
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Date
2019-09-14
Authors
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COLLEGE OF HORTICULTURE, VENKATARAMANNAGUDEM, W.G.Dist.-534 101 Dr. Y. S. R. HORTICULTURAL UNIVERSITY
Abstract
An investigation on “Effect of inorganic fertilizers in combination with
biofertilizers on growth, yield and quality of beetroot (Beta vulgaris L.) cv.
Crimson Globe” was carried out during Rabi season, 2018-2019 at college farm,
College of Horticulture, Dr. Y.S.R. Horticultural University,
Venkataramannagudem, West Godavari District, Andhra Pradesh.
The experimental design adopted was Factorial RBD. The first factor
adopted was the inorganic fertilizers at three levels (100%, 75% and 50% of
RDF) and the second factor was the different methods of biofertilizers
(Azotobacter + PSB + KSB as seed treatment, soil application and seed treatment
along with soil application and without biofertilizers). The experiment included
12 treatment combinations of inorganic fertilizers along with the biofertilizers.
The studies on the application of inorganic fertilizers on beetroot cv.
Crimson Globe revealed significant differences among the various levels. The
application of 100% recommended dose of fertilizers (70:110:70 NPK kg/ha)
recorded maximum plant height, plant spread in N-S, E-W directions, number of
leaves per plant, leaf area and leaf area index, root length (10.66 cm) and
diameter (6.41 cm), fresh weight of root (152.25 g) and dry weight of root (30.45
g), TSS, protein content, nitrogen uptake, phosphorus uptake and potassium
uptake.
The crop applied with biofertilizers, Azotobacter + PSB + KSB as seed
treatment and soil application showed significant increase in plant height,
number of leaves per plant, leaf area, leaf area index, root length (11.12 cm), root
diameter (6.65 cm), yield per plot (6.30 kg), yield per hectare (21.78 t), TSS,
ascorbic acid and protein content and also nutrient uptake.
From the experiment it was revealed that the treatment combination of
100% RDF and biofertilizers i.e. Azotobacter + PSB + KSB as seed treatment
and soil application recorded highest values in terms of growth characters viz.,
plant height, number of leaves, leaf area, leaf area index, root and yield
characters viz., root length (12.33 cm), root diameter (7.21 cm), fresh weight of
root (187.03 g), dry weight of root (37.40 g), harvest index (78.57%), yield per
plot (7.20 kg), yield per hectare (24.92 t) and quality characters of the crop viz.,
TSS, ascorbic acid and protein content. The nutrient status was found to be
highly influenced by various combinations of inorganic fertilizers and
biofertilizers and recorded significant increase in terms of nitrogen uptake
(118.33 kg ha-1
), phosphorus uptake (18.18 kg ha-1
) and potassium uptake (99.67
kg ha-1
). This combination also recorded highest benefit cost ratio of 3.17.
Description
1. To study the effect of inorganic fertilizers on growth, yield and quality of
beetroot
2. To study the effect of biofertilizers on growth, yield and quality of beetroot
3. To study the interaction effect of inorganic fertilizers in combination with
biofertilizers on growth, yield and quality of beetroot
4. To study the effect of inorganic fertilizers, biofertilizers and their interaction
on nutrient uptake by plant
5. To study the effect of inorganic fertilizers, biofertilizers and their interaction
on benefit cost ratio of beetroot