STUDIES ON EFFECT OF ORGANIC NUTRIENT SOURCES ON GROWTH, YIELD AND QUALITY OF ONION (Allium cepa L.)
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Date
2017-09
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled, “Studies on Effect of Organic Nutrient Sources on Growth,
Yield and Quality of Onion (Allium cepa L.)” was carried out at Organic Block, Experimental Farm of
Department of Vegetable Science, Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan,
(HP) in the Rabi season 2016-2017 with the objective to study the effect of organic nutrient sources on
growth, yield and quality of onion cv. ‘Palam Lohit’. The experiment was laid in Randomized Complete
Block Design (Factorial) with three replications comprising of ten treatments. Organic manures with five
levels [M0 (No Manure), M1 (FYM @ 25 t ha-1), M2 (Vermicompost @ 8 t ha-1), M3 (FYM 50 % + VC 50
%), M4 (FYM 75 % + VC 25 %)] was the first factor and application of liquid manure with two level [L0
(No liquid manure), L1 (Liquid manure i.e. Jeevamrut)] was the second factor. The results revealed that
treatment T8 [Vermicompost @ 8 t ha-1 + Jeevamrut (Drenching, 5%)] recorded maximum leaf length
(19.93, 42.23 and 59.33 cm at 30, 60 and 90 DAT), number of leaves per plant (3.20, 5.00 and 8.13 at 30,
60 and 90 DAT), number of bulbs per plot (263), equatorial diameter (6.36 cm), polar diameter (5.07 cm),
average weight of bulb (73.33 g), bulb yield per plot (19.31 kg), bulb yield per hectare (429.18 q), N, P, K
content in soil (336.16, 62.14 and 362.64 kg ha-1) and N, P, K uptake by plant (151.93, 28.86 and 120.17
kg ha-1). The same treatment also resulted in highest net return (Rs. 7, 08,895.37) and B:C ratio (4.74).
Hence, it can be concluded that application of Vermicompost @ 8 t ha-1 + Jeevamrut (Drenching, 5%)
optimized the nutrient requirement of the onion crop for better yield with maximum return and advantage
of environment protection and soil health.
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