INTEGRATED NUTRIENT MANAGEMENT IN FODDER OAT + LATHYRUS INTERCROPPING SYSTEM
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Date
2019
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Birsa Agricultural University, Ranchi
Abstract
Huge livestock population of Indian subcontinent is not only a source of livelihood for
poor, but also a source for human and crop nutrition. India supports nearly 20 % of the world
livestock and 16.8 % human population on a land area of only 2.3 %. It is leader in cattle (16%)
and buffalo (55%) population and has world’s second largest goat (20%) and fourth largest sheep
(5%) population (ICAR, 2009). The livestock sector adds almost 32% of Agriculture output in
India. But, the area under fodder cultivation is only 4 % of total cropped area. The area under
fodder cultivation is only 8.3 m ha (4 % of total cropped area). At present, the country faces a net
deficit of 61.1% green fodder and also recent population trends of India is not matching with the
required trend of livestock growth rate (Datta, 2013). Cattles and other lactating animal needed
balance quality diet (Tripathy et al., 2009). As feed and fodder contains about 60% of total cost
of milk production (Singh, 2008), thus good quality of green fodder having sufficient nutritive
value are the demand of the day.
The present investigation entitled “Integrated Nutrient Management in fodder oat +
lathyrus intercropping system” was carried out during Rabi season of 2017-2018 at forage
research field situated at College of Veterinary Science and Animal Husbandry of Birsa
Agricultural University, Kanke, Ranchi with the objective to find out the effect of fodder oat+
lathyrus intercropping system and INM on growth, yield, quality and economics of green
herbage. The experimental plot was well drained with a fairly uniform topography. The climate
of the region is sub-humid. The experiment was laid out in Split Plot Design with four cropping
stems in main plot. sole oat, sole lathyrus, oat + lathyrus (3:2) and oat + lathyrus (3:3) and three
integrated nutrient management as 100 per cent RDF (inorganic), 50 % N of RDF (inorganic) +
50 % N through FYM and 50 % N of RDF (inorganic) + 50 % N through vermicompost under
Sub-plot. Inoculation of Rhizobium @ 500 g/ha in lathyrus and Azotobactor @ 500 g/ha in oat
were carried through seed treatment. Bio- fertilizer (Azotobactor) having more than 108 CFUg-1
was used and seed treatment was carried with bavistin (fungicide) @ 2 g kg-1 of seed. Oat variety
JHO-99-2 with a seed rate of 80 kg/ha and lathyrus variety ‘Mahateora’ with a seed rate of 50
kg/ha were sown at 25 cm R-R distance. RDF of oat and lathyrus were 60:40:20 and 30:40:20 kg
N: P2O5: K2O/ha respectively.
Result showed that oat + lathyrus (3:2), grown at 100 % RDF as inorganic recorded
higher plant height (149.70 cm) of oat while longer vine length of lathyrus (103.67 cm) grown
under 50 % N of RDF (inorganic) + 50 % N of RDF (vermicompost). Fodder oat equivalent
yield (FOEY) 374.87 q/ha and productivity per day (green 5.20 & dry 1.52 q/ha/day) were
recorded significantly more under oat + lathyrus (3:2) at 50 % N of RDF + 50 % N of RDF
(vermicompost). It was 143 % more than at 100 % RDF as inorganic.
Crude protein content in fodder lathyrus (14.82%) was nearly 47.0 % more than fodder oat
(10.06 %). Total crude protein yield (CPY) 12.09 qha-1 was obtained when lathyrus was sown
with oat in 3:2 ratio at 50 % N of RDF (inorganic) + 50 % N of RDF (vermicompost).
Organic carbon and soil pH were not influenced by intercropping system and nutrient
management, while more available N, P and K were recorded under oat + lathyrus intercropping
system when the crops were fertilized with 50 % N of RDF (inorganic) + 50 % N of RDF
(vermicompost) Biological properties in terms of microbial population density (Azotobactor and
Actinimycetes) was improved under sole lathyrus and 50 % N of RDF (inorganic) + 50 % N of
RDF (vermicompost). oat + lathyrus (3:2) converted maximum gross return ( 74,975 ha-1)
grown at 50 % N of RDF (inorganic) + 50 % N of RDF (vermicompost) while, B:C ratio (1.59)
and profitability 653/ha/day were recorded under oat + lathyrus (3:2) at 100 % RDF as
inorganic.
On the basis of the findings of the experiment it may be concluded that, the fodder oat +
lathyrus (3:2) grown at 50 % N of RDF as inorganic (60:40:20 kgha-1) + 50 % N through
vermicompost under rice fallow will be beneficial to take maximum fodder production and
monetary out come.
Description
INTEGRATED NUTRIENT MANAGEMENT IN
FODDER OAT + LATHYRUS INTERCROPPING
SYSTEM