The comparison of different tillage and planting methods for wheat in shahr-e-rey region

In order to reach stable development, it is necessary to consider productivity in alldimensions, including agro-organizations which agricultural machineries are involved bymany of these organizations. Quantitative and qualitative study on function of currentmachineries of tillage and cultivation is important for several factors: first one is economicfactor, second one is accessibility and easy usage by farmers of each region and the thirdone, the most important, is the protecting its structure - earth - against erosion anddestruction. Different models of tillage and cultivation (18 models) are considered by thisstudy consisting of several agricultural machineries.Different methods for tillage after harvesting feeding corn in order to cultivate water fallwheat as main factor in 6 levels were evaluated and compared as below:- Moldboard plow + two times disks + Leveler;- Moldboard plow + one time disk + Leveler;- Chisel plow + two times disks + Leveler;- Perpendicular, two times disks + Leveler;- Rotivator + Leveler;- Chisel plow + Rotivator + Leveler;And different methods for harvesting water fall wheat as secondary factor in three levelswere evaluated and compared:- Grain drill centrifuge + furrow opener- Taka grain drill + furrow opener- Hamedan grain drill.Results of conical penetration index, weight average of earth and functional componentsof yield have shown that the best main treatment is Chisel plow + two times disks; and thesecondary treatment is Hamedan grain drill with total time of 5.6 hours in one hectare inorder to prepare and cultivate earth.