+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Impact of subsurface tillage on weed dynamics in the Central Great Plains



Impact of subsurface tillage on weed dynamics in the Central Great Plains



Weed Technology 18(1): 186-192



Maintaining crop residues on the soil surface has changed cropping practices in the Central Great Plains. Where previously winter wheat-fallow was the prevalent rotation, producers now grow warm-season crops in sequence with winter wheat and fallow. Controlling weeds during fallow with herbicides eliminates the need for tillage, thus conserving more crop residues. However, producers are considering subsurface tillage as an option to manage herbicide-resistant weeds. We reviewed the impact of subsurface tillage with the sweep plow on weed dynamics and crop growth compared with no-till systems. Cropping systems studies show that rotations can be designed to reduce weed community density severalfold; tillage lessens this rotational effect by burying weed seeds and prolonging their survival in soil. Crop residues on the soil surface reduce weed seedling establishment in no-till systems, but tillage eliminates this effect. Crops also yield less after tillage compared with no-till in this semiarid climate. Tillage may help in managing herbicide resistance, but it also may increase weed density as well as reduce crop yield.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 066184379

Download citation: RISBibTeXText

DOI: 10.1614/wt-03-095r1


Related references

Long-Term Tillage Impacts on Soil Aggregation and Carbon Dynamics under Wheat-Fallow in the Central Great Plains. Soil Science Society of America Journal 77(2): 594-605, 2013

Weed control challenges with conservation tillage in the Great Plains. Agricultural chemicals of the future: invited papers presented at a symposium held 16-19-1983 at the Beltsville Agricultural Research Center BARC Beltsville yland James L Hilton editor: 209, 1985

Weed control challenges with conservation tillage in the great plains usa. Hilton, J L (Ed ) Beltsville Symposia in Agricultural Research, Vol 8 Agricultural Chemicals Of The Future; Meeting, Beltsville, Md , Usa, May 16-19, 1983 Xv+464p Rowman And Allanheld Publishers: Totowa, N J , Usa Illus 199-210, 1985

Atrazine carryover and its soil factor relationships to no-tillage and minimum tillage fallow-winter wheat cropping in the Central Great Plains. Technical Bulletin, Colorado State University Experiment Station (144): 4, 1982

Atrazine carryover and its soil factor relationship to no-tillage and minimum tillage fallow-winter wheat cropping in the Central Great Plains Herbicides, stand reduction, clay soils. Technical bulletin Colorado State University Experiment Station: 82 (144), 1982

Ecofallow--replacement of some tillage with herbicides in the Central Great Plains. 1976

Mechanical tillage for conservation fallow in the semiarid Central Great Plains. 1976

Soil environment resulting from tillage for wheat in the central great plains usa. Soil & Tillage Research 8: 361-362, 1986

Crop rotation and tillage effects on phosphorus distribution in the central Great Plains. Soil Science Society of America Journal 61(5): 1418-1422, 1997

Soil and water conservation with minimum tillage in the semiarid Central Great Plains USA. Proceedings of symposia: IX International Congress of Plant Protection Washington DC USA August 5-11-1979 editor Thor Kommedahl: 2, 1981

Cost and yield effects of reduced tillage systems used in the northern and central Great Plains. 1984

Weed control in Central Great Plains tree plantations. Proc. 20th N. cent. Weed Control Conf, 37-9. bibl. 8, 1964

Weed population dynamics as influenced by tillage, fertilizer and weed management in wheat (Triticum aestivum L.) cropping systems of Central Ethiopia. Kasetsart Journal, Natural Sciences 38(3): 290-304, 2004

Weed Dynamics and Management Strategies for Cropping Systems in the Northern Great Plains. Agronomy Journal 94(2): 4-85, 2002

Weed dynamics and management strategies for cropping systems in the northern Great Plains. Agronomy Journal 94(2): 174-185, 2002