This study is aimed to evaluate the effect of multiple tillage practices on the wheat yield in rainfed fields. The\nexperiment was conducted in three field preparation and planting treatments including conventional tillage (moldboard plow,\ndisc harrow, and centrifugal seed spreader) indicated as T1, chisel plow, disc harrow, and planting with deep drill as T2, and\nconservation tillage (plowing with heavy disc on last year�s crop residues, and planting with deep drill) as T3.The\nperformance characteristics as well as agronomic and crop yield parameters were measured and analyzed for two consecutive\nyears. The design of experiments was carried out base on Randomized Complete Blocks Design with four replications. The\nanalysis of results showed that the conservation tillage had desirable effects on soil moisture content, field capacity, energy\nconsumption, seed distribution uniformity, number of grains per spike, number of spikes per unit area, grain yield and\nproduction cost when compared to the other treatments. As a comparable result, the minimum field efficiency and the\nminimum field capacity belonged to T1 as 0.57 and 0.39 ha/h, respectively. While the maximum values were recorded for T3\ntreatment as 0.72 and 0.58 ha/h, respectively. The fuel consumption for T3 was measured 23.3 L/ha as the lowest fuel\nconsumption due to reduce of tillage and planting practices. Furthermore, T2 operation condition consumed diesel fuel at an\naverage range of 39.2 L/ha. Besides, the maximum fuel consumption (46.7 L/ha) was in T1 treatment owing to use the\nmoldboard plow.
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