National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Proper tillage, precise placement and optimum coverage of seeds and fertilizers in the moist zone of soil are most critical for successful crop establishment. The present work was therefore taken up to study the soil coverage in the furrow with a developed furrow covering device with shovel and shoe type furrow opener. Experiments were conducted in the test soil bin with the three types of furrow openers like plain shovel, shovel with shoe and shovel+shoe+covering attachment with load of 5 kg to determine the performance on soil coverage and draft requirement. The draft requirement of the developed device with shovel and shoe type furrow openers were studied in sandy loam soil with a moisture content of 10 -11 % (wet basis) at a constant speed of 2.1 km/hr and at a depth of 80 mm. Soil strength was maintained between 300-400kPa throughout the experiment. From the experiment draft requirement for shovel, shovel with shoe and shovel+shoe+covering device with 5kg load was found to be 36.6 N, 41.0 N, 49.8N, respectively under the test conditions. The soil coverage data revealed that the developed furrow covering device resulted in best furrow coverage leaving the soil surface levelled both in the test soil bin and test under field condition. Although the attachment of the developed furrow covering device has draft requirement of 8.8N; considering the soil coverage which is very important in performance of seed-cum-fertilizer drill, the developed unit was found to be best in functional requirement of a tractor operated 9 tyne seed-cum-fertilizer drill.
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