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EFFECT OF INTEGRATED USE OF ORGANIC MANURES AND BIO-FERTILIZERS WITH INORGANIC NITROGENOUS FERTILIZER ON YIELD AND UPTAKE OF NUTRIENTS BY MEDICINAL COLEUS (Coleus forskohlii Briq.)

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Title EFFECT OF INTEGRATED USE OF ORGANIC MANURES AND BIO-FERTILIZERS WITH INORGANIC NITROGENOUS FERTILIZER ON YIELD AND UPTAKE OF NUTRIENTS BY MEDICINAL COLEUS (Coleus forskohlii Briq.)
 
Creator SANDYA RANI, K
 
Contributor UMA DEVI, M
 
Subject EFFECT, INTEGRATED, USE, ORGANIC, MANURE, BIO-FERTILIZERS, INORGANIC, NITROGENOUS, FERTILIZER, YIELD, UPTAKE, NUTRIENTS, MEDICINAL, COLEUS
 
Description A field experiment was conducted on coleus (Coleus forskohlii Briq.)
(K-8) at Herbal garden, Rajendranagar, Hyderabad on a fine loamy, mixed
hyperthermic, Typic Haplustept soil during late kharif 2005-2006 to study the
effect of organic manures, bio-fertilizers and inorganic nitrogen fertilizer on
yield, uptake of nutrients by coleus and on soil nutrient status. The design was
randomized block design with 12 treatments, replicated thrice. The treatments
were T1-Control (No manures, Bio-fertilizers and Inorganic nitrogen), T2 - 50 %
N, T3 - 100 % N (Recommended dose of N i.e., 40 kg ha-1), T4 - FYM @ 10 t ha-
1, T5 - FYM @ 10 t ha-1 + Bio-fertilizers (Azospirillum + Phosphorus
Solubilising Bacteria), T6 - 50% N + FYM @ 5 t ha-1 + Bio-fertilizers, T7 -
Castor cake @ 1.0 t ha-1, T8 - Castor cake @ 1.0 t ha-1 + Bio-fertilizers, T9 -
50%N + Castor cake @ 0.5 t ha-1 + Bio-fertilizers, T10 - FYM @ 5 t ha-1 +
Castor cake @ 0.5 t ha-1, T11 - FYM @ 5 t ha-1 + Castor cake @ 0.5 t ha-1 +
Bio-fertilizers and T12 - 50% N (Inorganic nitrogen) + FYM @ 2.5 t ha-1 +
Castor cake @ 0.25 t ha-1 + Bio-fertilizers. The control plot received no organic
manures, bio-fertilizers or inorganic N fertilizers. Nitrogen was applied in two
equal splits at basal and 30 DAP as per the treatments. All the plots received
uniform doses of 60 kg P2O5 and 50 kg K2O ha-1. FYM and castor cake were
applied as per the treatments. The coleus cuttings were dipped for half an hour
in bio-fertilizers solution before planting.
The crop has given good response to application of inorganic N up to
100% N level. Among the organic manures tested, castor cake was found to be
better than FYM. Addition of these organic manures along with bio-fertilizers
integrated with half the dose of inorganic N to achieve the yield levels of 100%
N, thus saving half of the N dose. The treatment which has received only FYM
or castor cake resulted in yield levels on par with 50% N thus indicating that
these manures could substitute nearly half the N requirement of coleus crop.
Conjunctive use of 50% N with organic manures (FYM @ 2.5 t ha-1 +
Castor cake @ 0.25 t ha-1) and bio-fertilizers (T12) has resulted in the highest
fresh tuber yield (121.91 q ha-1), dry tuber yield (21.59 q ha-1), dry matter
production by leaves, stem, roots and total at 90, 120 DAP and at harvest (150
DAP). Similarly the same treatments resulted in higher nutrient composition and
uptake of the nutrients (N, P, K, S, Fe, Mn, Cu and Zn). Higher protein content
(10.5%) was also obtained by 50% N + FYM @ 2.5 t ha-1 + CC @ 0.25 t ha-1 +
BF (T12). The starch content was not significantly influenced by various
treatments. However 100% N (T3) recorded the highest starch content (12.5%).
The soil nutrient status (available N, P, K, S, and Fe) at different time intervals
(90, 120 DAP and at harvest) was also higher in 50% N + FYM @ 2.5 t ha-1 +
CC @ 0.25 t ha-1 + BF (T12). Water-soluble form and non-exchangeable form of
potassium fractions were also higher (0.161 c mol (P+) kg-1 and 7.274 c mol (P+)
kg-1, respectively) in these treatments. Thus, 50% N + FYM @ 2.5 t ha-1 + CC
@ 0.25 t ha-1 + BF (T12) treatment was found to be on par with 100% N (T3)
indicating saving of 50% N through conjunctive use of organic manures and biofertilizers
with inorganic N.
Significant positive correlations were noticed between dry matter
production (0.87), total uptake of N (0.89), P (0.88), K (0.87), and S (0.72) with
yield. Application of different treatments could influence only the water-soluble
fraction. The benefit cost ratio was high and quite favorable for farmer ranging
from 1: 5.3 to 1: 44.5. The benefit cost ratio was the highest in 100% N (T3 – 1:
44.5) followed by 50% N (T2 – 1: 34.0) and 50% N + FYM @ 2.5 t ha-1 + CC @
0.25 t ha-1 + BF (T12 – 1: 16.2). If the farmer manages to get the organic
manures from his own field at free / least cost, it will be much more profitable.
Keeping in view of contribution of organic manures or bio-fertilizers on crop
productivity, quality and for improving the soil fertility or quality and from the
perspective of the recycling of the organic waste materials as well was to save
demand on inorganic fertilizers, it is recommended to apply 50% N with organic
manures (FYM @ 2.5 t ha-1 + CC @ 0.25 t ha-1) and bio-fertilizers (Azospirillum
and PSB) for coleus crop grown in Typic Haplustept soils of the Southern
Telangana Zone of Andhra Pradesh.
 
Date 2016-08-17T13:35:05Z
2016-08-17T13:35:05Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/72743
 
Language en
 
Relation D7877;
 
Format application/pdf
 
Publisher ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD