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Productivity of Soybean under Biofuel tree based Agroforestry system

KrishiKosh

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Title Productivity of Soybean under Biofuel tree based Agroforestry system
 
Creator VISHWANATH, B R
 
Contributor NAGARAJAIAH, C
 
Subject ---
 
Description The experiment was laid out in Randomized complete block design
with eight treatments replicated thrice comprising of seven biofuel (oil
seed bearing) tree species planted during 2008 at a spacing of 10 m
between the plants with nine trees in each plot. Trees include Simarouba
glauca, Melia dubia, Azadirachta indica, Melia azadirach, Pongamia
pinnata, Madhuca latifolia and Calophyllum inophyllum. In the
interspaces of trees, soybean was sown. The observation was made at
two directions i.e., towards north and south of tree row and at two
distances 0 – 2.5 m and 2.5 – 5 m from the base of each tree. These were
compared with sole soybean. Sole crop soybean recorded significantly
higher grain yield (1752 kg ha-1). The yield of soybean under agroforestry
systems as compared to sole crop varied significantly by 10.0, 12.0, 12.9,
20.3, 26.2, 29.2 and 42.4 per cent in Madhuca, Calophyllum, Pongamia,
Simarouba, Melia azadirach, Azadirachta indica and Melia dubia. Lower
yield of soybean under agroforestry systems was attributed to significant
reduction in growth and development of the soybean plants due to
shading effect of trees. Soil fertility was significantly better in association
with trees compared to open field. Soil organic carbon (0.60 per cent),
available nitrogen (331.68 kg ha-1), available phosphorous (23.50 kg ha-1)
and available potassium (304.67 kg ha-1) was significantly higher under
agroforestry system. Among different biofuel tree based agroforestry
systems, Madhuca, Calophyllum and Pongamia based agroforestry
systems yielded high net returns (Rs. 52,115.00, Rs. 50,225.00 and Rs.
44,915.00 ha-1) with benefit to cost ratio of 2.66, 2.60 and 2.43
respectively.
 
Date 2016-11-02T09:28:00Z
2016-11-02T09:28:00Z
2013-09-12
 
Type Thesis
 
Identifier Th-10648
http://krishikosh.egranth.ac.in/handle/1/83227
 
Language en
 
Format application/pdf
 
Publisher University of Agricultural Sciences GKVK, Bangalore