Nutritional interrelations in nendran banana (Musa AAB)
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Date
2003
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Department of Agronomy, College of Horticulture, Vellanikkara
Abstract
An experiment on nutritional inter-relations in Nendran banana was
coitducted during 2001-2002 in the farm attached to the Campus Development office,
Vellanikkara. Objective of the study was to elucidate the interaction pattern between
applied and native elements, which influenced the productivity of banana. The study
also aimed at developing a sustainable management system that would bring about a
balance between removal of nutrients and yield without depleting soil.
The pattern of influences of different sources such as organic, inorganic
and integrated forms on growth as well as productivity of banana was studied.
Interacting influences of Nand P at two levels, one being the recommended dose and
the other, a lower dose, were also studied.
The results showed that treatments had a significant beneficial influence on
growth characters as well as yield attributes. The integrated nutrient management
system showed better response. Total yield as well as yield attributes like number of
hands, total number of fingers per bunch, number of D fingers and D finger weight
were the highest with integrated method. Foliar contents of Fe and Mn were reduced
while those of other essential cations were increased.
Application of Nand P at levels lower than the recommended one, gave
better results. An analysis of foliar nutrient contents indicated that application of any
element by itself was !lot a guarantee for its uptake, but was subjected to the
influences of other elements, either applied or native. The highest yield was obtained
when foliar K content as well as ratios of Ca+MglFe, Ca+Mg/Mn, S/Fe and S/Ml1
recorded high values.
Integrated nutrient application, reducing Nand P levels, basal dressing
with time as well as top dressing with S containing compounds like K2S04 are related
to higher productivity and sustainability.
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