PERFORMANCE OF DIFFERENT GROUNDNUT CULTIVARS {Aracbis bypogaea (L.)] AS INFLUENCED BY SOIL AND FOLIAR APPLICATION OF IRON SULPHATE IN A CALCAREOUS SOIL
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Date
2004-01-22
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UNIVERSITY OF AGRICULTURAL SCIENCES BANGALORE
Abstract
A field experiment was conducted at Amminabhavi village of
Dharwad district during kharif 2000 to study the performance of
different groundnut cultivars as influenced by soil and foliar application of
iron sulphate in a calcareous soil. The experiment was laid out in a split
plot design with groundnut cultivars as main plots and iron management
practices as sub plots.
Among the different varieties tested FeESG-10 and FeESG-8
recorded significantly higher growth parameters viz., plant height, number
of leaves, branches per plant, leaf area, leaf area index and dry matter
production, Fe^^ content and lower per cent chlorosis than other three
varieties (Dh-53, TMV-2 and JL-24 ) at all the stages of crop growth.
The yield parameters studied such as number of pods per plant, pod
weight per plant, sound matured kernel and yield of groundnut were also
significantly higher in the varieties FeESG-10 (1802 kg ha-i) and FeESG-8
than other three varieties. The lowest yield was recorded with the variety
Dh-53 (1515 kg ha-i).
The quality parameters studied such as crude protein,
saponification number, iodine riumber, acid value and oil content were
non-significant among the different varieties studied and iron
management practices. However, the uptake of different nutrients by these
varieties was significant.
Application of FeS04 either through soil or foliar spray resulted in
significantly higher growth, yield and uptake of nutrients by the different
groundnut cultivars studied. Between the soil and foliar application, foliar
application resulted in significantly highest growth and yield parameters
and lower per cent chlorosis. Nutrient status after the harvest revealed
non-significant difference with varieties as well as with iron management
practices.
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