نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار پژوهش، بخش تحقیقات فنی و مهندسی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خوزستان، سازمان تحقیقات، آموزش و ترویج کشاورزی،
2 عضو هیات علمی مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی خوزستان
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
One of the effective ways to reduce agricultural operations as well as production costs is to use cobined machines. In this study a seed-fertilizer drill has been combined with a heavy disk and evaluated in field condition and compared with other reduced and no till methods. Main plots were four tillage-planting methods included of: designed combine machine (T1), no tillage with direct drill (T2), two pass disk fallowing with grain drill (T3), chisel packer fallowing with grain drill (T4). Subplots were seed rated at three levels included of: 150, 175 and 200 kg/ha. The results show that treatments were significantly different from view point of technical indices however they were not significantly different from view point of agronomy indices except Percentage of Emergence Percentage of Emergence. The highest and lowest rates of fuel consumotion assigned to T4 and T1 with 38.4 and 14.5 l/ha, respectively. Also T1 tretment fallowed by T2 treatmet had the second grade in field capacity with 1.66 ha/h rate. The combined machine could save in operation time and fuel consumtion related to T4 with 17.6% and 62.2% rates, respectively. The results of evaluation of seed rates showed that seed rates upper than 150 kg/ha didn,t have significant difference from view point of agronomy indices exceot to spike numbers per m2. According to these results, this combined machine (fertilizer -seeder equiped with heavy disk harrow) is suitable for conservation tillage and seeding of wheat.
کلیدواژه‌ها [English]
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