Weed Control and Plant Residue Maintenance with Various Tillage Treatments in a Winter Wheat‐Fallow Rotation<sup>1</sup>

Fenster, C. R.; Domingo, Concha; Burnside, O. C.

doi:10.2134/agronj1969.00021962006100020024x

Cited by 18 publications

(12 citation statements)

References 3 publications

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“…In field experiments where yield responses of wheat have been reported with respect to tillage treatments, yield increases were the result of better soil moisture storage and less weeds obtained on deep-tilled soil. Deeper tillage (mold-board plowing, chiseling) resulted in improved soil water storage in annual cropped wheat and in wheat-fallow systems in comparison with shallow tillage (sweep tillage) and no-tillage (3,9,13). However, in a long-term experiment, this ad-617 vantage of deeper tillage with respect to shallow tillage had been reduced with adequate N-fertilizer application (18).…”

mentioning

confidence: 98%

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat¹

Stibbe¹,

Kafkafi

1973

Agronomy Journal

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Because of different climatical conditions during the growing season from those of reported experiments in literature and the relatively few data about annual cropped winter‐grown wheat (Triticum aestivum L.) yield response to depth of tillage and to incorporation of previously broadcasted P‐fertilizer, a 2‐year field trial was conducted to evaluate the effects of three tillage depths, 10, 20, and 40 cm; and three P‐fertilizer rates on grain yields and dry matter production. The three P‐fertilizer rates were: no P‐fertilizer, 12 kg P/ha per 10 cm depth of tilled soil, and a flat 60 kg P/ha rate. The field trial had a randomized split plot design with four replications and was simultaneously conducted on two soils of different texture. Grain yields, dry matter production, and P‐uptake over 2 years were not influenced by depths of tillage. Initial development of wheat plants was better on shallow tilled soil. Added P‐fertilizer markedly increased grain yields, dry matter production, and P‐uptake. P‐fertilizer rates based on volume of tilled soil were as effective as the flat P‐fertilizer rate. Dry matter production response to P‐fertilizer was influenced by soil texture, indicating limiting P‐availability with decreasing clay content of soil. From the data obtained it can be concluded that increasing depth of tillage has no significant effect on annual cropped winter‐grown wheat yields and secondly that there is no need to incorporate P‐fertilizer deeper than the top soil layer of 10 cm. Therefore, if plowing a wheat stubble becomes necessary, P‐fertilizer rate can be based on the P‐availability of the sampled top soil layer after plowing and adjusted to the depth of the planned seedbed preparation to keep P‐availability at the recommended level for wheat growing.

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mentioning

confidence: 98%

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat¹

Stibbe¹,

Kafkafi

1973

Agronomy Journal

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“…Stubble mulch, which maintains residues on the soil surface, provides protection of soil against wind and water erosion (9) and may increase soil water storage efficiency as compared with bare fallow (7). Stubble mulch tillage, however, has not always provided adequate control of shallow-1066 rooted weeds (4,5). Thus, interest in using herbicides has increased because it provides weed control with little or no-tillage.…”

mentioning

confidence: 99%

Grain Yields, Soil Water Storage, and Weed Growth in a Winter Wheat‐Corn‐Fallow Rotation¹

Hoefer¹,

Wicks²,

Burnside

1981

Agronomy Journal

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This research involves factors affecting crop production in a no‐till crop rotation of winter wheat (Triticum aestivum L.)−corn (Zea mays L.)−fallow. Experiments were conducted in the field at North Platte, Nebr. during 1974 to 1977 on a Holdrege silt loam (fine−silty, mixed, mesic Typic Argiustolls) to determine the effect of weed control in growing winter wheat and stubble after harvest on annual weed growth, soil water storage, and winter wheat and corn yields. Winter wheat was an excellent competitor to weeds. Winter wheat allowed to grow until harvest (10 July) reduced weed weight taken 7 weeks after harvest (1 September) 56% as compared with plots where winter wheat and weeds were removed on 22 May. Weed competition reduced winter wheat yields by 15% in 1975 but not in 1976 when weeds succumbed to drought and competition from winter wheat. Glyphosate [N−(phosphonomethyl)glycine] applied after winter wheat harvest did not immediately kill weeds which resulted in unnecessary soil water loss when compared to plots receiving tillage. Volunteer wheat and weeds emerged after an application of glyphosate or one tillage after harvest. A residual herbicide should be applied to prevent these weeds from using soil water. Weeds in plots that were allowed to produce viable seed in the winter wheat or in the stubble after harvest significantly reduced weed control in corn planted the following spring as compared with plots in which weeds were not allowed to produce viable seed. Escaped weeds that produce seed during any period of a crop rotation will provide competition to subsequent crops. Standing stubble trapped snow which increased corn yields as compared to plots where tillage had knocked stubble down. Removal of winter wheat stubble after corn planting caused less brace root penetration, more lodging. and reduced corn yields 15% as compared to plots where stubble was left undisturbed.

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“…Schillinger (2001) reported 11 to 64% greater surface residue in sweep‐tillage compared to conventional tillage systems. Fenster et al (1969) also reported 25% greater crop residue in sweep tilled compared to disk‐tilled fallow systems.…”

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confidence: 92%

Comparison of Fallow Tillage Methods in the Intermediate Rainfall Inland Pacific Northwest

et al. 2010

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Winter wheat (Triticum aestivum L.) is usually grown in the Pacific Northwest (PNW) intermediate rainfall zone following tilled or chemical summer fallow. Studies were conducted near Davenport, WA and Helix, OR over two fallow–winter wheat cycles to evaluate the efficacy of reduced or no‐tillage fallow compared to conventional fallow and compare the efficacy of herbicides applied using a light‐activated sensor‐controlled (LASC) applicator to broadcast applications. Six treatments included conventional primary tillage followed by rodweeding; sweep‐tillage followed by rodweeding, broadcast, or LASC herbicide application; and no‐tillage followed by broadcast or LASC herbicide application. Broadcast and LASC herbicide applications controlled weeds similarly in no‐tillage treatments. However, LASC applications used from 45 to 70% less herbicide than broadcast applications to attain similar weed control. No‐tillage or sweep‐tillage systems with herbicide application had from 15 to 30% greater surface residue cover than the conventional tillage system. Available soil moisture in both the root‐zone and seed‐zone soil profiles at time of planting was similar among tillage systems. There were no differences in wheat quality parameters across treatments. The conventional tillage system had similar wheat grain yield as sweep‐tillage systems followed by rodweed or broadcast herbicide application, but yields were up to 21% greater than sweep‐tillage with LASC applied herbicides and no‐tillage systems. Reduced tillage systems using sweep‐tillage and broadcast herbicide application could potentially replace more tillage intensive fallow systems in the PNW.

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Weed Control and Plant Residue Maintenance with Various Tillage Treatments in a Winter Wheat‐Fallow Rotation¹

Cited by 18 publications

References 3 publications

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat¹

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat¹

Grain Yields, Soil Water Storage, and Weed Growth in a Winter Wheat‐Corn‐Fallow Rotation¹

Comparison of Fallow Tillage Methods in the Intermediate Rainfall Inland Pacific Northwest

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Weed Control and Plant Residue Maintenance with Various Tillage Treatments in a Winter Wheat‐Fallow Rotation1

Cited by 18 publications

References 3 publications

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat1

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat1

Grain Yields, Soil Water Storage, and Weed Growth in a Winter Wheat‐Corn‐Fallow Rotation1

Comparison of Fallow Tillage Methods in the Intermediate Rainfall Inland Pacific Northwest

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Weed Control and Plant Residue Maintenance with Various Tillage Treatments in a Winter Wheat‐Fallow Rotation¹

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat¹

Influence of Tillage Depths and P‐Fertilizer Application Rates on the Yields of Annual Cropped Winter‐Grown Wheat¹

Grain Yields, Soil Water Storage, and Weed Growth in a Winter Wheat‐Corn‐Fallow Rotation¹