EFFECT OF NUTRIENT MANAGEMENT WITH DIFFERENT SOURCES AND LEVELS OF WATER SOLUBLE AND NORMAL FERTILIZERS ON GROWTH AND YIELD OF GROUNDNUT (Arachis hypogaea L.)
Loading...
Date
2015-07-10
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
A field experiment was carried out during kharif 2014 at Gandhi Krishi
Vignana Kendra, University of Agricultural Sciences, Bengaluru to study the effect of
different sources, levels of fertilizer and methods of fertilizer application on growth
and yield of groundnut in red sandy loam soil. The experiment consisted of ten
treatments viz., 50, 62.5, 75 and 100 % of RDF through normal fertilizers, water
soluble fertilizers (WSF) and combination of both with soil application, fertigation as
well as foliar application methods which were replicated thrice in RCBD. The
investigation revealed that drip fertigation of water soluble fertilizers at 50 % RDF
along with foliar spray of water soluble fertilizers at 12.5 % RDF recorded
significantly higher pod yield (2910 kg ha-1), growth parameters (plant height, leaf
area, total dry matter production) and yield attributes (pods plant -1, pod weight plant -
1, 100 kernel weight, kernel and haulm yield). Uptake of major nutrients (N, P and K)
in groundnut was also significantly higher in this treatment. However it was on par
with drip fertigation of normal fertilizers at 50 % RDF + water soluble fertilizers at 50
% RDF. It was also observed that due to drip irrigation, the amount of water saved
was 33.7 % over surface irrigation. Drip fertigation of water soluble fertilizers at 50 %
RDF along with foliar spray of water soluble fertilizers at 12.5 % RDF saved 37.5 %
fertilizers with higher net returns ha-1 (` 65,134 ha-1) and B: C of 2.20 compared to
soil application of normal fertilizers at 100 % RDF
Description
Keywords
null