EFFECT OF ZINC BIOFORTIFICATION AND INM ON PHENOTHERMAL REQUIREMENTS OF GARDEN PEA UNDER HIMALAYAN CONDITIONS
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Date
2022-08
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Journal ISSN
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Publisher
UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled “Effect of zinc biofortification and INM on
phenothermal requirements of garden pea under Himalayan conditions” was conducted
during rabi season of 2019-20 and 2020-2021at Experimental farm of Vegetable Science Dr.
Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan. Four levels each
of 100 per cent, 90 per cent, 80 per cent of RDF was taken each consisting of 0.5 per cent and 1.0
per cent ZnsO4 as foliar spray with and without Rhizobium (seed treatment and soil application).
Control and absolute control treatments were taken as check in a plot having dimensions of 3.0
x1.8m with variety Azad P 3. The experiment was laid out in a randomized block design with
three replications involving a spacing of 60 x7.5cm. The observations were recorded on growth
and yield, quality, thermal indices, soil, nutrient uptake and Benefit to cost ratio (B: C). The
results revealed that application of 100 per cent RDF + 0.5 per cent ZnSO4 + Rhizobium
produced best results in most of the characters like pod length, pod weight, number of grains per
pod, yield and yield efficiency index, zinc content in grains, available phosphorus, potassium and
viable count of bacteria, zinc uptake, zinc uptake efficiency, nitrogen and phosphorus uptake
efficiency, minimum values for most of the characters were recorded in the absolute control. The
phenothermal data revealed that treatment with 100 per cent cent RDF + 0.5 per cent ZnSO4 +
Rhizobium reported highest GDD while minimum was recorded with the application of 80 per
cent RDF + 0.5 per cent ZnSO4 + Rhizobium. We can predict that with the application of these
treatments the GDD can be increased or decreased. Heat use efficiency was highest in treatments
application 90 per cent + 1.0 per cent ZnSO4 and 80 per cent RDF + 0.5 per cent ZnSO4 +
Rhizobium. On the basis of these studies, it can be concluded that T2 (100 % RDF + 0.5 % ZnSO4
+ Rhizobium ) resulted in better growth, better quality and nutrient status and hence can be
recommended as a cost effective combination for reaping higher yields along with biofortification
of pea crop with zinc.