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Integrated Nutrient Management (INM) in Palmarosa

KrishiKosh

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Title Integrated Nutrient Management (INM) in Palmarosa
 
Creator GAJERA, ATULKUMAR R.
 
Contributor BAFNA, A.M.
 
Subject harvesting, organic fertilizers, yields, oils, farmyard manure, planting, nutrients, nitrogen, fertilizers, crops
 
Description A field experiment with 16 treatment combinations
consisting of 2 levels each of FYM (M0= No FYM, M1= 15 t/ha/year), N
(N1= 100 kg N/ha/year, N2= 150 kg N/ha/year), P2O5 (P1= 60 kg
P2O5/ha/year, P2= 90 kg P2O5/ha/year) and K2O (K0= No K2O, K1= 60 kg
K2O/ha/year) was conducted in Factorial Randomized Block Design with
three replications at Soil and Water Management Farm, Navsari
Agricultural University, Navsari during the year 2005 to 2008 (total five
cuttings) under South Gujarat conditions.
The results of present study indicated that in most of the
cases, biometric observations viz., plant height, number of tillers per
clump, length of inflorescence, fresh weight of leaves and
inflorescences per plant were significantly differed due to individual
effect of organic manure (FYM) @ 15 t/ha/year and N application @ 150
kg/ha/year as compared to their rest of the levels. The L/S ratio was
also influenced significantly in some cases. Significantly shorten
flowering period was registered under the individual influence of lower
rate of N (100 kg/ha/year) and higher rate of P2O5 (90 kg P2O5/ha/year)
to the palmarosa. Palmarosa grown with FYM @ 15 t/ha/year and N @
150 kg/ha/year treatment gave significantly higher herbage and
essential oil yield during all the individual cuttings, total yield during
individual year as well as pooled yield of both the years. Significantly
higher dry biomass production was also recorded with the same
treatment during all the individual cutting.
A combination of FYM (15 t/ha/year) and N (150
kg/ha/year) recorded significantly taller plants in most of the cuttings,
while in some cases, maximum number of tillers per clump and higher
length of inflorescence were recorded over rest of the combinations.
As far as essential oil concerned, irrespective of
treatments, inflorescence contained more oil (1.2%) followed by leaves
(1.1%) and least in stem (0.1%). Generally, higher numerically values of
essential oil content in all the individual plant parts as well as whole
plant was registered during summer season and its lower values
reported during post rainy season. It was further observed that quality
parameters tested viz., solubility of essential oil in 70 per cent alcohol
and specific gravity of oil were not influenced by any treatments.
Results of plant sample analysis showed significantly
higher N, P and Fe content with the manuring treatment (15 t
FYM/ha/year) during most of the cuttings. As like organic manure,
treatment N150 maintained its significant supremacy on plant N content
and treatment P90 on plant P content during all the cuttings. Further,
significant higher Ca content and significantly lower Fe and Zn content
in palmarosa was also registered under P90 level during first cutting of
both the years.
Apart from individual effect of N and P, their interactive
effect was also recorded to be significant in case of N content in some
cases. Significantly higher N content was observed with combination
N2P1 in first cutting of both the years. This was at par with treatment
combinations N2P2 and N1P2 in case of first year and N2P2 in the second
year. Similarly with M x P interaction, significantly higher P content was
registered with combination M1P2 which was at par with M1P1
combination in some cases.
In all the individual cuttings as well as total uptake of all
macro and micronutrients in individual year, treatment 15 t FYM/ha/year
and treatment 150 kg N/ha/year individually maintained its significant
superiority over rest of their levels. Similarly, Level P90 was also
maintained its significant dominancy in terms of higher P uptake with
the respective cases. On the controversially, Fe and Zn uptake was
recorded significantly higher with the lower level (60 kg P2O5/ha/year) of
phosphorus during first cutting of both the years. The N x P and M x P
interactions significantly altered the N and P uptake during first cutting
of both the years, respectively. The higher uptake of N was recorded
with N2P1 combination which was statistically at par with N2P2
combination. Similarly, P uptake was significantly higher with
combination M1P2 which was found at par with M1P1 combination.
Significant salt reduction as well as higher organic carbon
content in soil was recorded with FYM treatment at both the depth of
first cutting of first year, while in second year, it was true for surface soil
sample (0-15 cm depth) only. In most of the cases, application of 15 t
FYM/ha/year kept its significant upper hand so far availability of all the
nutrients under study concerned except, Ca, Mg and Cu. Generally,
higher availability of N, P, Fe, Mn and Zn were noted for longer duration
due to FYM application as compared to K and S availability in the soil.
Significantly higher availability of N in all the soil samples
was recorded with their respective higher level of N application, while P
and K availability in most of the soil samples was recorded with
respective higher level of particular element under the study. During first
cutting of both the years, significantly higher S and lower Fe and Zn
availability was recorded with the higher level of P2O5 in the surface soil
samples (0-15 cm depth) during first cutting of both the years.
Significantly higher available N content in soil in all the
samples during first cutting of both the years was recorded under the
influence of treatment combination M1N2, which was observed at par
with combination M1N1 during first year. The M x P interaction was also
reported significant for the surface soil samples during second cutting of
2nd year. Here, both the combinations M1P1 and M1P2 showed almost
similar and significantly higher P2O5 content in soil. Among the various
treatments, application of organic manure @ 15 t FYM/ha/year recorded
higher net realization of Rs. 93,209 per ha with BCR 1.93. Similarly,
higher net profit of Rs. 92,669 per ha with BCR 1.93 was registered with
the application of N@ 150 kg/ha/year. The result of present study
proved that palmarosa is remunerative crop under South Gujarat
conditions.
 
Date 2016-03-10T10:57:07Z
2016-03-10T10:57:07Z
2009-06
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/65035
 
Language en
 
Format application/pdf
 
Publisher Navsari Agricultural University, Navsari