DEVELOPMENT OF BELT TYPE SEED METERING MECHANISM.
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Date
2018-08-21
Authors
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
Seed sowing is an important and time bound operation for crop cultivation. At present, the sowing operation is done manually by broadcasting, dibbling, putting seed behind the plough and other methods or with the help of manual, animal or tractor drawn seed drills/planters. These have lower efficiency, poor quality seed placement and high cost of cultivation. Presently, among different sowing techniques, precision sowing by pneumatic seed metering is preferred, since it provides more uniform seed spacing than other methods for sowing. For sowing of soybean seed most commonly seed drill either bullock drawn or tractor drawn are used and they have some limitations in sowing of soybean seeds. Considering lack of precision in seed metering in case of existing sowing equipments and the very high initial cost involve in the existing precision pneumatic planters the efforts are made to develop a belt type seed metering mechanism for soybean crop which will help to minimize the problems and reduce the cost of existing soybean planting machines.
The physical properties of soybean seed variety (JS-335) in terms of equivalent length, sphericity, Surface area, bulk density, angle of repose, angle of friction and thousand seed weight were observed as 6.69 mm, 83.76%, 93.89 mm2 ,703.52 g/m3, 22.77˚, 23˚ and 102.01 g, respectively. The belt type seed metering mechanism was tested for its quality parameters by taking the three levels of forward speed (2.5 km/h, 3.5 km/h, 4.5 km/h) and at three inclination angle (00, 100, 200) of seed metering belt. The overall best results were obtained at the forward speed of 2.5 km/h and at an 00 inclination angle of seed metering belt with seed missing index (29.70%), multiple index (0%), quality of feed index (60.70%), precision index (26.70%) and uniformity index (50%). The forward speed for this type of mechanism should be minimum with minimum inclination angle for getting better results and may be used for other seeds with different groove size on seed metering belt.
Description
For soybean seed sowing there is limited sowing machines are there. For sowing of soybean most commonly seed drill either bullock drawn or tractor drawn are used and there are some limitations seen in sowing of soybean seed by drilling method. In case seed drills the seed to seed distance is not maintained, it is time consuming, the cost and labour requirement is high, etc. The present study has been undertaken to develop a belt type seed metering mechanism suitable for metering of soybean and also for other crops. A very less research has found on belt type planter. The principle of the belt type seed metering device is that the single seed is carried by the specified groove around the belt, which may never damage the seed and save the quantity of seed which is not seen in drilling method of sowing.
Keywords
Crops, Soybean, Glycine max, Agricultural engineering, Equipment, Mechanization, Animal power, Postharvest management, Postharvest technology, Legumes, Statistics and experimentation, Experimentation, Laboratory experimentation, Statistical methods, Design, Data analysis, Soybean seed spacing missing index, Soybean seed spacing multiple index, Soybean seed spacing quality feed index, Soybean seed spacing precision index, Soybean seed spacing uniformity index, belt type seed metering mechanism,
Citation
MORE, MAYAVATI SATYABHAN. (2018). Development of belt type seed metering mechanism. Department of Farm Power and Machinery, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Tech. 2018. Print. xii, 69p. (Unpublished).