International Journal of Agricultural Engineering

K. Madhusudhana Reddy ¹, D. Vijay Kumar ¹, B. Ravindranatha Reddy ², B. Sahadeva Reddy ¹

Affiliations
1 Agricultural Research Station, DCMS Buildings, Kamalanagar, Anantapur A.P, IN
2 College of Agriculture, Mahanandi, Kurnool A.P., IN

Abstract

Groundnut is cultivated as a major oilseed crop in Andhra Pradesh. As the farmers want to strip the pods immediately after harvest mainly to prevent crop damage from unexpected rains and other field losses, a fresh pod thresher for groundnut wastested for its performance in comparison withconventional method of groundnut threshing (stripping of pods by hand) at Agricultural Research Station, Anantapur. Its overall performance was satisfactory and recorded an output of 225 kg/h with threshing and cleaning efficiencies of 96 and 98 per cent, respectively. The use of groundnut thresher can save 75 per cent labour and 40 per cent of cost compared to conventional method of groundnut threshing.

Keywords

Groundnut,manual Stripping, Machine Threshing, Fresh Pod Thresher

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K. Madhusudhana Reddy ¹, D. Vijay Kumar ², B. Sahadeva Reddy ², B. Ravindranatha Reddy ³

Affiliations
1 Department of Agricultural Engineering, Agricultural Research Station, DCMS Buildings, Kamalanagar Anantapur A.P, IN
2 Agricultural Research Station, DCMS Buildings, Kamalanagar, Anantapur A.P, IN
3 College of Agriculture, Mahanandi,Kurnool A.P

Abstract

An eight row tractor drawn planter was developed for sowing of groundnut seed in irrigated (Rabi) condition at Agricultural Research Station, Anantapur. The seed metering in the planter is of inclined plate type. Power is transmitted from ground wheel to metering system through chain and sprockets. A double point shovel type furrow opener was provided for opening the furrows. The seed is placed in the furrows at desired depth. The implement can be operated by a 35 hp tractor. During evaluation the field capacity of the planter was found to be 0.35 ha/h at the average speed of operation of 2.88 km/h with field efficiency of 66.5 per cent. It was found that, the cost of sowing with local manual seed drill was observed to be 51 per cent higher than the sowing with groundnut planter. Manual seed drill required 11.3 man-h/ha more than the groundnut planter.

Keywords

Groundnut, Seed Drill, Planter, Seed Rate, Seed to Seed Spacing, Man-h/ha

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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

Abstract

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 54.5^o, 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 4^o, 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.

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