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Report, 1992

Ekoodlaren: en studie av ett kombinationsredskap för sådd och ogräshackning, utförd våren och sommaren 1991

Tobiasson, Mats


The Ekoodlaren (Eco cropper) is a new implement constructed to prepare the seedbed, to seed, to fertilize and to row weed in single or combined operations. The main purposes for the construction is to save time and money, and to reduce excessive packing of the soil. Its drilling and row hoeing qualities were examined at the Department of Soil Sciences in three series of field trials during 1991. Two of the series, 'Seed coulters: Different tillage methods' (Rl-5015) and 'Seed coulters: Minimized tillage' (R2-5016), were carried out on the Ultuna property. The third (R2-S017), concerning row hoeing in small grains, was carried out in the county of Östergötland. In R2-5015, the use of Ekoodlaren and three other drills were compared after three different seedbed preparations. The seedbed treatments were seeding after mouldboard plowing and harrowing, stubble cultivation and harrowing and direct drilling. In R2-S016, three different drills were compared after three different seedbed preparations (zero, one and three harrowings) in both autumn ploughed and shallow cultivated plots. In R2-5017, the work of Ekoodlaren was compared with a drill equipped with hoe coulters in one treatment. The other treatments concerned row hoeing and fertilizing with Ekoodlaren. The shape of the frame of the Ekoodlaren is a T. The seed box emanates from a Tive air drill. The load carrying wheels are mounted on bogies, where the working depth regulation mechanism and the coulters (duckfoot shovels) are also mounted. The placement of the seeds was carried out nearly as well by the Ekoodlaren as by the reference machines equipped with hoe coulters. Then number of emerged plants was slightly higher than for the reference drill in the row weeding trials. The stands of wintering weeds and volunteer plants were strongly decreased by the drill operation of the Ekoodlaren. The effect on annual weeds depended upon the conditions during the seeding operation. Rainy weather delayed the row weeding to a time when the crop was too developed for normal weeding operations in practical farming. Row weeding small grains did decrease the weed stand. The shovels did not remove any grain plants, but weeding did decrease the yield compared to the unworked Ekoodlaren treatment. The abnormal weather conditions (unusually wet) prevented any attempts to interpret the results for a more normal year. No notable yield differences occurred in the Ultuna trials, while in the row weeding trials, seeding with Ekoodlaren gave a higher yield in all treatments. In the Ultuna trials, the overall variances were small. This was not the case in the Östergötland trials due to a considerable weed stand (developed during previous cropping seasons) and unusually wet weather conditions. Results of other research, partly with the Ekoodlaren, concerning fuel consumption and required time for field work have shown slightly lower costs compared to conventional tillage methods and clear possibilities of saving time and fuel


jordbearbetning; kombinationsredskap; Ekoodlaren; fältförsök; såbäddsberedning; ogräs; bränsleförbrukning

Published in

Meddelanden från Jordbearbetningsavdelningen
1992, number: 2
Publisher: Institutionen för markvetenskap, Jordbearbetningsavdelningen, Sveriges lantbruksuniversitet

    SLU Authors

UKÄ Subject classification

Agricultural Science

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