Development and Evaluation of a Manual Paddy Weeder Suitable for Jammu Region
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Date
2021-12
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Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu
Abstract
A manual paddy weeder suitable for Basmati – 370 was developed and evaluated at Research farm SKUAST-J Chatha Jammu during Kharif 2020 for studying its performance in close spaced crop. The effect of different Diameter of rotor (D1 =120 mm, D2 =140 mm and D3 = 160 mm), Height of blades (H1 = 30 mm, H2 = 35 mm and H3 = 40 mm) and Distance between rotors (L1 =250, L2 = 300 and L3 = 350 mm) were studied on weeding efficiency, soil volume disturbed, plant damage, field capacity, field efficiency, frequency of clogging, performance index and cost of weeding.
The performance was evaluated in paddy crop after 20 DAT, the treatment combination of different diameter of rotor (140 mm), height of blades(35 mm) and distance between rotors (300 mm) result in maximum weeding efficiency (85.92 %), field capacity (0.0098 hah-1 ), field efficiency (80.18 %) and performance index (2131.08) with minimum frequency of clogging (0.33) and plant damage (1.67 %). Similarly, the speed of operation was also found maximum i.e. 0.333 ms-1. The operating cost of developed prototype was found to be 4306.45 ha-1. Weeding efficiency (%), performance index, field capacity (hah-1), field efficiency (%) decreased when the height of blades, distance between rotors and diameter of rotor increased or decreased from 35 mm, 300 mm and 140 mm respectively. Whereas plant damage and frequency of clogging increased when the height of blades, distance between rotors and diameter of rotor increased or decreased from 35 mm, 300 mm and 140 mm respectively.
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Preferred for your work Sachin Kumar, M.2021 Development and Evaluation of a Manual Paddy Weeder for Jammu Region M.Tech. Thesis SKUAST-Jammu.