National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Developed rotary weeder cum fertilizer drill was operated by the mini-tractor using three-point linkage, it performs both the operations of intercultivation and fertilizer application at a time. Experiments were conducted in field by varying forward speed ranged 1.8-2.0 kmh-1, 2.5-2.7 kmh-1 and 3.0-3.2 km h-1. Calibration of the machine was conducted at laboratory condition and at field condition. A 42.67 % more fertilizer was dropped at field calibration on comparing with that of fertilizer dropped at laboratory calibration. The highest effective field capacity of developed machine was found out as 304×10-3 hah-1 at the forward speed of 3.0-3.2 km h-1. The highest field efficiency, highest weeding efficiency and lowest plant damage of developed machine were obtained at 1.8-2.0 km h-1forward speed of operation. The highest field efficiency, highest weeding efficiency and lowest plant damage of developed machine obtained were 86 %, 91.23 % and 3.62 % respectively. The lowest fuel consumption of developed machine was obtained as 1.30 lh-1 at 1.8-2.0 km h-1 forward speed.
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