Book of Extended summaries ISDA

International Conference on Reimagining Rainfed Agro-ecosystems: Challenges &
Opportunities during 22-24, December 2022 at ICAR-CRIDA, Hyderabad
precious fodder for livestock. Therefore, harvesting trail conducted on these standing stems to
cut it and used as fodder.
Experimental design
The developed prototype tested on finger millet crop. The performance parameters like
Electric Energy requirement, Watthour, Electric Power Requirement, Watt, field capacity,
cutting efficiency, battery run time, height of cut during the operation were measured.
Detail specifications of DC powered brush cutter
SI. No. Particulars Specification
1. Weight 11.5 kg
2. Battery capacity 18 Ah
3.
Motor Type and
Power
DC motor
120/150/250 watt
4. Motor speed 4000 rpm
5. Motor speed controller Available
Field crop parameter
The performance evaluation of machine conducted on Finger millet stem.
Sr. No. Crop Parameters Finger millet stem
1 Height of crop, cm 80
2 Crop density, hill/m 2 22
3 No. of hills per m 2 22
4 Plant per hill 7-8
5 Row to row spacing, cm 45
6 Hill to hill spacing, cm 10-18
7 Stem diameter, cm 0.8-1.2
8 Hill diameter, cm 10
9 Biomass per m 2 , kg 2.5
Results
The developed brush cutter cuts the crop from bottom and windrow it in left side of operator.
The operator can operate it by fixing machine on one shoulder with shoulder strap and swinging
it from right to left. The performance evaluation of developed prototype conducted on finger
millet crop stem. The field capacity was observed 250m 2 per hour with 15 min rest time.
Further, it was found that the developed brush cutter could work effectively for 1.5-2 h
continuously in one charging. The cutting efficiency of 95% was found with developed brush
cutter. The cutting width of brush cutter for finger millet was 80-100 cm was found suitable to
avoid clogging. It was also observed that developed prototype produces lesser noise and
minimum vibration as compared to engine operated brush cutter. The maximum power
Emerging approaches (RS, AI, ML, Drones etc) for crop management &assessment
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