STANDARDIZATION OF FERTIGATION SCHEDULE AND BIO-FERTILIZERS ON GROWTH, YIELD AND QUALITY OF KIWIFRUIT (Actinidia deliciosa Chev.) cv. ALLISON
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Date
2020-12
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Publisher
NAUNI,UHF
Abstract
ABSTRACT
The present investigation entitled “Standardization of fertigation schedule and biofertilizers
on growth, yield and quality of kiwifruit (Actinidia deliciosa Chev.) cv. Allison” was
conducted on 35 years old kiwifruit vines of uniform size and vigour, planted at a spacing of 4.0 m ×
6.0 m at experimental block of Department of Fruit Science, Dr YS Parmar University of Horticulture
and Forestry, Nauni, Solan (Himachal Pradesh) during the year 2018 and 2019. The entire programme
of study was divided into two experiments. In the first experiment, three fertigation levels viz., 100 per
cent, 80per centand 60per centrecommended dose of NPK were applied at three application intervals
viz., 7 days , 10 days and 15 days according to Randomized Block Design (Factorial). Accordingly, the
fertigation was given in 21, 15 and 10 split doses, respectively. Fertigation with 100 per cent
recommended dose of NPK in 15 splits at 10 days interval from the emergence of new flush exhibited
better vegetative growth performance and nutrient status of soil and leaf. However, the fertigation
with 80 per cent recommended dose of NPK in 15 splits at 10 days interval from the emergence of new
flush exhibited better bloomintensity, fruit set, yield and quality characteristics.
In the second experiment, three fertigation levels (100 %, 80 % and 60 %) of recommended
dose of NPK were applied with Arka Microbial Consortium @ 5 ml L-1(single or two applications) in
the month of February prior to the emergence of new flush and in Julyaccording to Randomized Block
Design (RBD). Fertigation with 100 per cent recommended dose of NPK coupled with two
applications of Arka Microbial Consortium @ 5 ml L-1 in the month of February and in July recorded
highest bloom intensity, fruit set along with better leaf and soil nutrient status. However, fertigation
with 80 per cent recommended dose of NPK coupled with single or two applications of Arka
Microbial Consortium @ 5 ml L-1 resulted better performance in terms of kiwifruit yield, yield
efficiency and fruit quality parameters namely; fruit size, fruit weight, total soluble solids, TSS: acid
ratio, total sugars and nutrient status of leaf and s