TY  - BOOK
AU  - Sreerag K P
AU  - Manoj Mathew (Guide)
TI  - Field testing of a powered paddy hill seeder attachment with an oscillating single cell metering roller and furrow boot shutter gate mechanisms
U1  - 631.3 
PY  - 2022///
CY  - Tavanur
PB  - Department of Farm Machinery and Power Engineering, Kelappaji College of Agricultural Engineering and Technology
KW  - Farm machinery and power engineering
KW  - Paddy hill seeder
KW  - Furrow boot shutter gate mechanisms
KW  - Oscillating single cell metering roller
N1  - MTech
N2  - Rice (Oryza sativa) is one of the most important crops in India and occupies 
about 22 per cent of gross cropped area of the country. In India, the rice crop is 
highly dependent on the southwest monsoon, which occurs over the subcontinent 
from June through September. The non-availability of skilled labour at the 
planting season delays rice transplanting and ultimately results in poor yield. For 
obtaining a high yield, it is required to drop the desired number of seeds in rows 
while maintaining accurate seed rate and seed spacing during sowing (Karayel 
and Ozmerzi, 2004). 
 The crank- rocker driven oscillating single cell arrangement can provide 
precise amount of seed dropping and desired hill spacing (Nageswar Bandi, et al., 
2020). The metering single cell size varies according to the variety of paddy to be 
sown. Desired combination of forward speed to the speed of seed metering (single 
cell roller) was identified in this study. The performance of the seed-metering 
mechanism of the precision paddy hill seeder was investigated under laboratory 
and field conditions to optimize the design and operating parameters of paddy line 
seeding. The effect of speed of metering roller disc, belt forward speed and cell 
size were evaluated by examining the mean hill spacing, missing index, multiple 
index, highest quality of feed index and precision in spacing (coefficient of 
variation). The field testing of the developed unit was conducted at instructions 
farm, KCAET, Tavanur. 
It was observed that for picking the recommended seeds (3- 5 seeds/hill), 
the oscillating roller disc has a single cell size of 12 mm suited for Jyothi paddy 
variety. The optimum forward speed was 1.0 and1.5 kmh-1 while the metering 
roller speed was 70 and 90 rpm. Lower miss index was observed at highest cell 
size and lowest speed, and low multiple indices at low cell size and highest speeds 
(Shubham, et al., 2021). 
 The maximum field capacity and efficiency for the precision paddy hill 
seeder was found to be 0.22 ha h-1 and 84 per cent respectively. Performance 
comparison with existing sowing machinery showed several advantages like 
reduced seed rate and better plant density. The total cost of operation computed is 
Rs. 2000/ha, which is found to be more economical when compared to manually 
operated drum seeder Rs. 3000/ha. Based on the laboratory and field performance 
evaluation, it is concluded that the precision paddy hill seeder is economical and 
efficient for line hill seeding of paddy seeds
ER  -