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ARS Home » Pacific West Area » Pendleton, Oregon » Columbia Plateau Conservation Research Center » Research » Publications at this Location » Publication #166618
Title: DEVELOPMENT AND EVALUATION OF A RESIDUE MANAGEMENT WHEEL FOR NO-TILL DRILLS

Author
item Siemens, Mark
item WILKINS, DALE - RETIRED USDA-ARS
item Correa, Robert

Submitted to: ASAE Annual International Meeting
Publication Type: Proceedings
Publication Acceptance Date: 6/15/2003
Publication Date: 7/28/2003
Citation: Siemens, M.C., Wilkins, D.E., Correa, R.F. 2003. Development and evaluation of a residue management wheel for no-till drills. ASAE paper No. 03-1019, 10 pp. St. Joseph, Mich.:ASAE.

Interpretive Summary: Adoption of conservation tillage systems in the Pacific Northwest lags behind that of the United States, due in part to the lack of trouble-free seeding equipment for planting into heavy crop residue. Commercial shank- and disc- type no-till drills were developed for low residue conditions and for crops planted in wide rows. In heavy crop residue or when row spacing is narrow, shank-type drills tend to rake the residue and cause drill plugging. Disc-type openers are prone to pushing the crop residue into the seed zone or they may ride over the crop residue and deposit seed on the soil surface which results in poor stand establishment. To overcome this problem, an attachment was developed to improve the residue handling capabilities and performance of hoe-type no-till drills. The patented device (US 6,345,671) is designed to attach to the tool bar of hoe-type no-till drills and positioned next to the furrow opening shank. When seeding, the ground driven rubber fingered wheel pins crop residue to the soil surface, preventing it from building up on the furrow opener and seed tube. The invention was evaluated in 2000 and 2001 in northeastern Oregon and southeastern Washington. Results from these experiments showed that depending on residue treatment, the residue management wheel was found to significantly increase seedling stand count of winter canola by 44-53%, spring barley by 24%, mustard by 41%, lupin by 9%, spring wheat by 15-34%, and winter wheat by 17-20% as compared to the standard drill. Use of the residue management wheel also increased the yield of wither canola by 12%, spring barley by 3%, mustard by 5%, lupin by 8%, and spring wheat by 6-7%. By increasing stand establishment and crop yield, utilizing this technological development will help increase the profitability therefore adoption of soil and water conservation farming practices.

Technical Abstract: Adoption of conservation tillage in the Pacific Northwest lags that of the United States in part due to the lack of reliable seeding equipment for planting into the heavy residue encountered in this region. To overcome this problem, an attachment was developed to allow a hoe-type no-till drill to handle large amounts of residue and improve drill performance. The patented device (U.S. 6,345,671) consists of a fingered rubber wheel, a rubber inner ring, and a spring loaded arm which pivots about vertical and horizontal axis. The unit is designed to attach to the tool bar of hoe-type no-till drills and positioned so that the inner ring is next to the furrow opening shank. When seeding, the ground driven rubber fingered wheel and inner ring hold down and "walk" through crop residue, preventing it from building up on the shank and seed tube. The device was evaluated in 2000 and 2001in Oregon and Washington. Test site locations varied significantly in the amount and condition of crop residue and were planted to a variety of different crops. The results showed that as compared to the standard drill, the residue management wheel was found to increase seedling stand count of small seeded crops such as Canola and mustard by over 40 percent and large seeded crops such as wheat and barley by 16 percent. These differences were found to be statistically significant. Increases in stand generally resulted in increases in crop yield of 6-8 percent, but these differences were not always statistically significant.