Combined Effect of Pressmud, Farmyard Manure, Gypsum and Zinc Sulphate for Enhanced Crop Productivity in Cowpea {Vigna Unguiculata L.)
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Date
2014
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Abstract
The agroindustrial waste pressmud
was composted and along with farmyard
manure, gypsum and zinc sulphate was
used for the study of seedling, vegetative
parameters and yield of cowpea. The
composted pressm ud significantly
increased the seedling parameters namely
length of epicotyls, hypocotyls, root length,
number of lateral roots, plant fresh weight
and plant dry weight. Gn the 30* Days
After Sowing (DAS) the shoot length, plant
I fresh weight and dry weight in Tj treatment
(composted pressmud + farmyard manure)
(14.10cm, 3.41g, 1.09g) were increased
when compared to the control (8.41cm,
1.20g, 0.83g). On the 45* DAS shoot length
was increased in (composted pressmud
+ farmyard manure). Root length (24.88 cm)
number of leaves (10.66) and number of
nodules were significantly increased in T^
(composted pressmud) treatment. The yield
parameters length of pod and weight of pod
(5.58cm, 0.35g respectively) were increased
in Tj treatment (composted pressmud +
farmyard manure) and number of seeds per
pod (6.50) weight of seeds per pod (0.30g)were increased in T^ (composted pressmud
+ farmyard manure+ gypsum) treatment
respectively. Hence from the present
investigation it is clear that pressmud can
be recycled and along with farmyard
manure, gypsum and zinc sulphate. It can
be used as a cheaper source of organic
nutrient^ for plant growth.