EFFECT OF DIFFERENT LEVELS AND METHODS OF APPLICATION OF BORON WITH AND WITHOUT ZINC ON GROWTH AND YIELD OF FINGER MILLET
Loading...
Date
19-07-13
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Agricultural Sciences GKVK, Bangalore
Abstract
A field experiment was carried out in a soil deficient in boron and zinc at
Zonal Agricultural Research Station, Mandya, to study the effect of different
levels and methods of boron application with and without zinc on yield and
uptake of nutrients by finger millet.
The treatments consisted of application of 275 g and 550 g of borax to
the crop through foliar spray with and without soil application of zinc sulphate
@ 12.5 kg ha-1, soil application of 10 kg ha-1 and 15 kg ha-1 of borax with and
without zinc sulphate @ 12.5 kg ha-1, only zinc sulphate @ 12.5 kg ha-1 and a
control.
The combined use of two nutrients indicated a synergistic effect on yield
and uptake of many of the nutrients element. Its lower level (0.5 per cent foliar
spray/soil application borax 10 kg ha-1) indicated a slight positive edge over the
higher level (1 per cent foliar spray/soil application of borax15 kg ha-1) on both
crop yield and uptake of all the nutrients. Hence, it is very clear from the
results of the present study that the use of boron at levels greater than 0.5 per
cent borax spray or 10 kg ha-1 soil application may lead to a decline in crop
yield due to toxic effect. Use of 0.5 per cent borax spray along with 12.5 kg zinc
sulphate proved to be ideal in finger millet in terms of increase in yield and
minimizing the residual boron content in the soil wherever continuous boron
application at high doses is advocated.
Description
Keywords
inorganic acid salts, boron, zinc, yields, millets, crops, planting, grain, harvesting, biological development