Weed control efficiency was higher under pre-emergence pendimethalin followed by atrazine plus 2,4-D amine salt.

atrazine · weed · Zea mays (maize)Results differ

196 papers in the same direction as this claim · 5 in the opposite direction

1. negative
   Reducing atrazine and metolachlor to one-fourth the rate in the absence of cover crop reduced weed control in three of four years compared with the standard treatment.

   Reduced-Herbicide Weed Management Systems for No-Tillage Corn (Zea mays) in a Hairy Vetch (Vicia villosa) Cover Crop · 1993 · compared with the standard treatment

   Opposite direction

2. negative
   Early preplant atrazine and/or metolachlor gave reduced late season weed control in no till corn compared with preemergence or sequential application.

   Early Preplant Atrazine and Metolachlor in Conservation Tillage Corn (Zea mays) · 1991 · compared with preemergence and early preplant/preemergence sequential treatments

   Opposite direction

3. negative
   Atrazine applied at 21 DAS failed to control the weeds satisfactorily.

   Atrazine as Post-emergence Herbicide for Weed Control in Maize (Zea mays L.) · 1994

   Opposite direction

4. no effect
   Restricting atrazine to 1.5 pounds of active ingredient per acre generally would not reduce weed control in corn production.

   Alternatives to Triazine Herbicides in Iowa Corn Production · 1991

   Opposite direction

5. no effect
   Additional atrazine did not decrease winter weed densities in corn systems at either site.

   Influence of Spring Herbicide Applications on Winter Weed Emergence in Corn and Soybean Production Systems · 2012

   Opposite direction

6. positive
   Atrazine, simazine and paraquat was consistently satisfactory for weed control in no-tillage corn.

   Control and Ecology of Weeds in Continuous Corn Grown Without Tillage · 1972

   Same direction

7. positive
   Half rates of atrazine and metolachlor reduced total weed density more effectively with no cover crop than with hairy vetch.

   Weed Control and Sweet Corn (Zea maysvar.rugosa) Response in a No-till System with Cover Crops · 1996 · compared with hairy vetch

   Same direction

8. positive
   Atrazine at 1.1 kg a.i. ha −1 greatly reduced weed growth versus no herbicide.

   Integrating Mechanical Weeding with Reduced Herbicide Use in Conservation Tillage Corn Production Systems · 1995 · compared with no herbicide use

   Same direction

193 papers more in this group

amine · weed · Zea mays (maize)Results agree

4 papers in the same direction as this claim

1. positive
   The 2,4-D amine plus dicamba treatment provided supplemental annual weed control.

   Herbicides for No-tillage Corn in Alfalfa Sod · 1976

   Same direction

2. positive
   Pendimethalin (PE) followed by 2,4-D amine (PoE) was significantly superior in reducing weed density and dry weight of weeds in maize.

   Chemical weed management in maize using pre and post emergence herbicides · 2020 · compared with weed free and weedy check

   Same direction

3. positive
   Second grass amine controlled maize field weeds.

   Test Study on Preventing and Killing off Coeno-species Field Weeds in Maize Inbred Line and Hybrids Field · 2004

   Same direction

4. positive
   Pendimethalin followed by 2,4-D amine significantly reduced weed density.

   Protein and starch content in maize (Zea mays L.) as influenced by herbicidal weed management · 2021

   Same direction

herbicide · weed · Zea mays (maize)Positive and negative results

359 papers in the same direction as this claim · 36 in the opposite direction · 10 reporting no difference from an alternative

1. negative
   GMHT management increased weed biomass in maize.

   Responses of plants and invertebrate trophic groups to contrasting herbicide regimes in the Farm Scale Evaluations of genetically modified herbicide–tolerant crops · 2003 · compared with conventional treatments

   Opposite direction

2. negative
   Without herbicide, weed control was poor regardless of row spacing or population.

   Influence of Narrow Row/High Population Corn (Zea mays) on Weed Control and Light Transmittance · 1995

   Opposite direction

3. no effect
   Weed diversity was little affected by treatment in all three crops except immediately after herbicide use.

   Weeds in fields with contrasting conventional and genetically modified herbicide–tolerant crops. I. Effects on abundance and diversity · 2003

   Opposite direction

4. no effect
   Weed cover and grain yields in corn after banded herbicide plus cultivation were equivalent to broadcast herbicide with or without cultivation.

   Integrating Mechanical and Chemical Weed Management in Corn (Zea mays) · 1994 · compared with broadcast herbicide with or without cultivation

   Opposite direction

5. negative
   Combining hairy vetch and preemergence herbicides provided 24 to 61% grass control compared with hairy vetch alone.

   Influence of hairy vetch residue on atrazine and metolachlor soil solution concentration and weed emergence · 2003 · compared with hairy vetch alone

   Opposite direction

6. no effect
   Prior-year weed treatments had little effect on next-year corn weed control and yield.

   Field evaluation of a bioeconomic model for weed management in soybean (Glycine max) · 1997

   Opposite direction

7. negative
   Compared with broadcast applications, herbicides applied in a band resulted in increased weed populations at 8% of the locations.

   On-Farm Evaluation of Mechanical and Chemical Weed Management Practices in Corn (Zea mays) · 1993 · compared with broadcast applications

   Opposite direction

8. negative
   A quarter of the herbicide rate alone insufficiently controlled weeds.

   Weed control in maize (Zea mays L.) with effective minimum rates of foramsulfuron · 2009

   Opposite direction

397 papers more in this group