Abstract
The results of field experiments demonstrated a poor parforrna-once of a power tiller for wheat crop. Bullocks and a small !size tractor of 12 H„P. being uncomfortable, llowsr, ineffective and outlier were considered inappropriate. A medium size tractor of about 50 H.P. wal euggested for wheat oultivlation as a .suit able mode of power because of its favourable effect' on soil strength, seedling emergence and coil of operation. I NTRODUCT ION A diversified opinion on the use of small tractors for general use in our agriculture continues to exist. Often the use of .111111 di or large tractors is advocated entirely on the basis of economic considerations. with utter disregard to their technicsl perforthance.. • .This situation has 6-ivied m.any setback" during the past, in addition to de.esioping apprehensions among the country farmers with regard to the merits of different modes of power in our agriculture. 'The present study was. accordingly, undertaken to experimentally compare tte effects of various modes of farm power on soil-crop parameters. MATERIALS AND METHODS The following power unit' (treatments) with their associated tillage imple-ment" were used with a view to assess their effects on the quality of seedbed preparation, seedling emergence, etc; 1. Bullock' with 'Minna' (an indigenous) plow 2. Chinese powsr tiller Mom Peng, 12 }LP.) with rotavator 3. Chinese power tiller Moog Pang, 12 H.P.) with double plow 4. Holder AM.2 (German, 12 H.14'.). a small tractor with retavator 5. Massey Ferguson (M.F-136, 47 HIP.). a medium alai tractor with disk barrow

Jehangir Khan Sial, Ghulam Sarwar Sheikh. (1988) Medium size tractor for wheat cultivation, , Volume 25, Issue 2.
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