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Ramana, M. V.
- Design, Development and Evaluation of a Manually Operated Onion Grader for Rose Onion
Abstract Views :205 |
PDF Views:1
Authors
G. Gayathri
1,
K. V. Harshanjali
1,
K. Rupavathi
1,
D. Vijay Kumar
2,
G. Senthil Kumaran
3,
A. Carolin Rathina Kumari
3,
M. V. Ramana
4
Affiliations
1 College of Agricultural Engineering (ANGRU), Madakasira, Anantapur (A.P.), IN
2 Department of Farm Power and Machinery, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
3 Department of Agricultural Engineering, Indian Institute of Horticulture Research, Hesaraghatta, Bengaluru (Karnataka), IN
4 Department of Soil and Water Conservation Engineering, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
1 College of Agricultural Engineering (ANGRU), Madakasira, Anantapur (A.P.), IN
2 Department of Farm Power and Machinery, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
3 Department of Agricultural Engineering, Indian Institute of Horticulture Research, Hesaraghatta, Bengaluru (Karnataka), IN
4 Department of Soil and Water Conservation Engineering, College of Agricultural Engineering (ANGRAU), Madakasira, Anantapur (A.P.), IN
Source
International Journal of Agricultural Engineering, Vol 9, No 2 (2016), Pagination: 121-129Abstract
A manually operated onion grader was designed, developed and evaluated at I.I.H.R., Bangalore for Rose onion verities commonly cultivated in Bangalore into three grades based on geometric dimensions of the selected variety. The linear dimensions like polar diameter, equatorial diameter and thickness of Rose onions were found in the range of 21.92 - 54.54 mm, 15.83 - 59.13 mm and 16.52 - 50.22 mm, respectively. The angle of repose of Rose onions were found as 54.5o, and co-efficient of static friction for onions on different surfaces like galvanized iron 0.402, for stainless steel 0.414, for aluminum 0.386, for mild steel 0.522 and for plywood 0.366, respectively. Experiments were conducted with three types of slopes, at each slope three different feed gate opening lengths and two swing directions. The statistical analysis showed that the standardized parameters were slope 4o, length wise swing direction and feed gate at full opening. The grader has a grading capacity 1105 kg/h at overall grading efficiency 75 per cent and required grading efficiency 75 per cent. The operation cost of machine was 6 times less than manual operation cost.Keywords
Rose Onions, Grading, Grading Efficiency, Grading Capacity, Damage Efficiency.
- Evolution of Alternative Filling Materials Replace to the Soil Media for Raising Nursery Seedlings in Fields of Chittoor District
Abstract Views :183 |
PDF Views:0
Authors
Affiliations
1 College of Agricultural Engineering, Madakasira (A.P.), IN
2 College of Agricultural Engineering, Madakasira (A.P.), IN
3 Regional Agricultural Research Station, Tirupati (A.P.), IN
1 College of Agricultural Engineering, Madakasira (A.P.), IN
2 College of Agricultural Engineering, Madakasira (A.P.), IN
3 Regional Agricultural Research Station, Tirupati (A.P.), IN
Source
International Journal of Agricultural Engineering, Vol 11, No 1 (2018), Pagination: 220-226Abstract
This study was conducted to investigate on alternative tray filling materials to replace the soil media on crop growth, yield characteristics and yield attributes in The Mechanized System of Rice Intensification (MSRI). Focusing on the different alternative filling materials suitable to replace the soil media with 100% seed germination, Ten treatments with different combinations were experimented and a fine thin layer of well decomposed farm yard manure was spread over all ten treatments o bed filling material [(i.e., T1-10% groundnut shell + 90 % soil; T2-10% vermincompost+ 90% soil; T3-10% rice husk+90% soil; T4-25% vermin-compost+75% soil; T5-25% rice straw + 75% soil; T6-25% rice husk + 75% soil; T7-10% rice straw+ 90% soil; T8-25% groundnut shell +75% soil; T9-Field soil (100%) (MT); T10-Manual plantin (MP)]. The observation of transplanted hills was also noted in ischolar_main growth and leaf number, leaf area index and number of tillers and panicle number, panicle length and grain number per panicle, grain filling and 1000-grain weight and straw weight. The raising nursery with different bedding materials transplanted with machine significantly influenced grain yield per hectare. The results revealed that highest grain yield per hectare was observed with T8 (25% GS) as 4858.5 kg/ha and followed by T4 (25% VC) as 4685 kg/ha. However, the lowest grain yield was recorded at 2212.6 kg/ha was observed in T6 (25% RH), due to lowest N, P, K contents in rice husk bed material. It is also observed from transplanted crop that ischolar_main length was highest with T5 (25% RS) as 11.39 cm followed by T3 (10% RH) as 11.16 cm, whereas lowest ischolar_main length 9.10 cm, ischolar_main spreading was highest with T8 (25% GS) as 20.72 cm followed by T1 (10% GS) as 19.46 cm, T2 (10% VC) as 19.00, T4 and 9 are comparable with each other and is 18.47 cm. whereas lowest ischolar_main spreading 13.08 cm was observed in T10 (manual planting). Finally it has been concluded that there is significant effect of bedding materials on crop growth and yield parameters.Keywords
MSRI, SRI, Bedding Materials, Yield, Crop Parameters.References
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