نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Crop yield is influenced by seeding quality. In this study, some effective parameters on seeding quality have been surveyed. For this purpose, by use of split-split plot experiment, based on a randomized complete block design with three replications, effect of tillage method, planter type and travel speed on seeding quality indices like skip, single seeding, multiple seeding and seeding precision. Main plots were related to different tillage methods including; 1-mouldboard plow + one pass disk plow (T1), 2-mouldboard plow + two pass disk plow (T2) and 3-mouldboard plow + two pass disk plow + land leveler (T3). Sub plots were related to planter types including; 1- mechanical planter (P1) and 2-pneumatic planter (P2). Sub–sub plots were related planter travel speed including; 1- 4 km/h (S1), 2- 5.5 km/h (S2) and 3- 7 km/h (S3). Variance analysis showed that, tillage method had significant effect on all of the parameters except single seeding index and seeding precision. However, planter type and travel speed have significant effect on none of the parameters. Interaction between tillage method and planter type, have significant effect on all parameters except single seeding. With regard to seeding precision, the best treatment was T1P1 followed by T2P2. Therefore, using T2P1S3 treatment, speed and precision of seeding could be increased.
کلیدواژهها [English]
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