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Effect of various nutrient sources on productivity and economics of groundnut (Arachis hypogaea L.)

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Title Effect of various nutrient sources on productivity and economics of groundnut (Arachis hypogaea L.)
Not Available
 
Creator Chatra Ram
H.B. Singh,
R.B. Patel
Hanuman Singh
Gopal Kumar
 
Subject groundnut, RDF, agronomy.
 
Description Not Available
Groundnut is one of the most important
oilseed crop of India. Gujarat being the leading
state in groundnut production contributes about
27 percent of national production. Over the time
it has been observed that the groundnut
production is not stable and national average
yield of 991 kg/ha (Agricultural Statistics at a
Glance, 2011) is far below than potential as well
as global average. There are several factors
responsible for low and unstable yield of
groundnut viz. lack of improved varieties, poor
fertility status of soils besides biotic and abiotic
stresses. Moreover, most of the soils of Gujarat,
where groundnut is being cultivated are low in
organic carbon and available nitrogen. One of
the most important aspects in this regard is
proper nutrient management. So far most of the
farmers are relying on application of chemical
fertilizers that too with low doses. The other
source viz. organic manures and biofertilizers
though proven under controlled condition are
yet to show presence in farmer's field. With the
introduction of intensive cropping, independent
use of neither the chemical fertilizer nor the
organic sources can sustain the fertility of the
soil and productivity of crops. Therefore
considering the importance of organic and
biological sources of nutrient for increasing the
productivity a field study was undertaken to
study the effect of chemical fertilizer, organic
manures and biofertilizers on growth and
productivity of groundnut with an aim to
identify most remunerative combination.
An experiment was conducted during kharif
2008 at Agronomy Farm of Anand Agricultural
University, Anand situated between 220-35'
North latitude and 720-55' East longitude with
an altitude of 45.1 m above mean sea level.
Climate of the location is semi-arid to subtropical.
The soil popularly known as 'Goradu'
is alluvial in origin, loamy sand in texture. The
soil had 7.8 pH, 0.21% organic carbon, 190 kg
KMnO4 oxidizable N/ha, 30.3 kg 0.5N NaHCO3
extractable P/ha and 355.6 kg 1N ammonium
acetate exchangeable K/ha. The experiment was
laid out in Randomized Block Design and
replicated thrice. The treatment consisted of
recommended dose of fertilizers i.e. 12.5 kg N +
25 kg P2O5 /ha (RDF), vermicompost @10 q/ha
(VC) and poultry manure @ 5 q/ha (PM) in
combination with biofertilizers (seed inoculation)
viz., control, Rhizobium, VAM and PSB. The
vermicompost and poultry manure were applied
prior to sowing and seed of groundnut was
inoculated with Rhizobium, PSB and VAM as per
treatments. Gujarat groundnut-20 (GG-20), a
semi spreading variety was sown on 9 June, 2008
with seed rate of 100 kg /ha at 45 cm row
spacing. Other management practices were
adopted as per recommendations for the crop.
Growth parameters like number of
branches per plant, number of effective nodules
per plant and dry weight of nodules per plant
did not influenced due to application of
fertilizers and manure (Table 1), while plant
height (36.59 cm) under RDF was observed
significantly higher than VC and PM. Application
of RDF significantly improved yield attributes
and yield viz. number of pods per plant, pod
yield, haulm yield and shelling percent over VC
and PM. The maximum pod yield (2.61 t/ha) was
obtained with application of RDF being
significantly superior over application of PM
(2.38 t/ha) and VC (2.29 t/ha), while haulm yield
was found at par under RDF and PM treatment.
Higher pod yield may be attribute to easy
availability of nutrients from inorganic sources
as compared to organic sources might have
Not Available
 
Date 2020-02-28T11:44:02Z
2020-02-28T11:44:02Z
2013-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33465
 
Language English
 
Relation Not Available;
 
Publisher Not Available