Abstract
Reduced-tillage peanut production is increasing due to reduced production costs and increased environmental and economic benefits compared to conventional systems. Experiments were conducted in Alabama and Georgia between 2005 and 2007 to evaluate a strip-tillage system utilizing a high-residue cereal rye cover crop, in comparison to a conventional tillage system. Six weed management schemes were evaluated including a preemergence (PRE) application of pendimethalin alone at 1.12 kg ai/ha or in combination with S-metolachlor at 1.36 kg ai/ha. Both PRE applications were applied alone or followed by (fb) a postemergence (POST) application consisting of a mixture of paraquat at 0.140 kg ai/ha plus bentazon at 0.56 kg ai/ha plus 2,4-DB at 0.224 kg ae/ha. The remaining two treatments consisted of a no-herbicide control and aforementioned POST-only application. In 2005 at the Alabama location, pendimethalin plus metolachlor with or without a POST application controlled all weeds >91% in the strip tillage treatment and controlled tall morningglory, yellow nutsedge, and common bermudagrass >83% in the conventional tillage system. Pendimethalin fb a POST application controlled all weeds > 97%, except large crabgrass (75%) and common bermudagrass (≤ 58%) regardless of tillage system. In 2007, pendimethalin and pendimethalin plus S-metolachlor followed by (fb) a POST application controlled smooth pigweed, tall morningglory, large crabgrass, Florida beggarweed, and sicklepod 70 to 99%, across tillage systems. In 2005 at the Georgia location, large crabgrass control was consistently reduced in strip-tillage compared to conventional tillage regardless of herbicide treatment. In 2006, pendimethalin plus S-metolachlor fb POST controlled common bermudagrass and yellow nutsedge 74 to 99%. Herbicide treatment effect on peanut yield varied with environment. Peanut yield was equivalent or greater by 25% or more in 3 of 4 site years utilizing strip-tillage indicating a yield advantage compared to conventional tillage. Peanut market grade was not affected by any herbicide treatments or tillage methods evaluated. Results show that producers can maintain weed control, equivalent grade and yield in reduced-tillage systems when utilizing a high-residue conservation agriculture system integrated with a PRE plus POST herbicide system.
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Claims 11
Claim · model-written summary
Pendimethalin plus metolachlor, with or without a POST application, controlled all weeds above 91% in strip tillage in Alabama in 2005.
- Taxon
- peanut
Arachis hypogaeat0 - Treatment
- pendimethalin plus metolachlore0
- Outcome
- all weedse0
- Direction
- controllede0
- Value
- >91%e0
- Qualifier
- with or without a POST applicatione0
- Setting
- Alabama locatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e0“In 2005 at the Alabama location, pendimethalin plus metolachlor with or without a POST application controlled all weeds >91% in the strip tillage treatment”
Claim · model-written summary
Pendimethalin plus metolachlor controlled tall morningglory, yellow nutsedge and common bermudagrass above 83% in the conventional tillage system in Alabama in 2005.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- pendimethalin plus metolachlore0
- Outcome
- tall morningglory, yellow nutsedge, and common bermudagrasse1
- Direction
- controllede1
- Value
- >83%e1
- Setting
- conventional tillage systeme1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e0“In 2005 at the Alabama location, pendimethalin plus metolachlor with or without a POST application controlled all weeds >91% in the strip tillage treatment”
e1“and controlled tall morningglory, yellow nutsedge, and common bermudagrass >83% in the conventional tillage system”
Claim · model-written summary
Pendimethalin followed by a POST application controlled all weeds above 97%, except large crabgrass and common bermudagrass, regardless of tillage system.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Pendimethalin fb a POST applicatione2
- Outcome
- all weedse2
- Direction
- controllede2
- Value
- > 97%e2
- Qualifier
- except large crabgrass (75%) and common bermudagrass (≤ 58%) regardless of tillage systeme2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e2“Pendimethalin fb a POST application controlled all weeds > 97%, except large crabgrass (75%) and common bermudagrass (≤ 58%) regardless of tillage system”
Claim · model-written summary
In 2007, pendimethalin-based programs followed by a POST application controlled smooth pigweed, tall morningglory and large crabgrass 70 to 99% across tillage systems.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- pendimethalin and pendimethalin plus S-metolachlor followed by (fb) a POST applicatione3
- Outcome
- smooth pigweed, tall morningglory, large crabgrasse3
- Direction
- controllede3
- Value
- 70 to 99%e3
- Qualifier
- across tillage systemse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e3“In 2007, pendimethalin and pendimethalin plus S-metolachlor followed by (fb) a POST application controlled smooth pigweed, tall morningglory, large crabgrass, Florida beggarweed, and sicklepod 70 to 99%, across tillage systems”
Claim · model-written summary
In 2007, pendimethalin-based programs followed by a POST application controlled Florida beggarweed and sicklepod 70 to 99% across tillage systems.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- pendimethalin and pendimethalin plus S-metolachlor followed by (fb) a POST applicatione3
- Outcome
- Florida beggarweed, and sicklepode3
- Direction
- controllede3
- Value
- 70 to 99%e3
- Qualifier
- across tillage systemse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e3“In 2007, pendimethalin and pendimethalin plus S-metolachlor followed by (fb) a POST application controlled smooth pigweed, tall morningglory, large crabgrass, Florida beggarweed, and sicklepod 70 to 99%, across tillage systems”
Claim · model-written summary
Large crabgrass control was consistently reduced in strip-tillage compared with conventional tillage in Georgia in 2005, regardless of herbicide treatment.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- strip-tillagee4
- Outcome
- large crabgrass controle4
- Direction
- reducede4
- Qualifier
- regardless of herbicide treatmente4
- Comparator
- conventional tillagee4
- Setting
- Georgia locatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e4“In 2005 at the Georgia location, large crabgrass control was consistently reduced in strip-tillage compared to conventional tillage regardless of herbicide treatment”
Claim · model-written summary
Pendimethalin plus S-metolachlor followed by a POST application controlled common bermudagrass and yellow nutsedge 74 to 99% in 2006.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- pendimethalin plus S-metolachlor fb POSTe5
- Outcome
- common bermudagrass and yellow nutsedgee5
- Direction
- controllede5
- Value
- 74 to 99%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e5“In 2006, pendimethalin plus S-metolachlor fb POST controlled common bermudagrass and yellow nutsedge 74 to 99%”
Claim · model-written summary
Herbicide treatment effect on peanut yield varied with environment.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- Herbicide treatmente6
- Outcome
- peanut yielde6
- Direction
- variede6
- Qualifier
- with environmente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e6“Herbicide treatment effect on peanut yield varied with environment”
Claim · model-written summary
Peanut yield under strip-tillage was equivalent or greater by 25% or more than under conventional tillage in 3 of 4 site years.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- strip-tillagee7
- Outcome
- yielde7
- Direction
- equivalent or greatere7
- Value
- 25% or moree7
- Qualifier
- in 3 of 4 site yearse7
- Comparator
- conventional tillagee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e7“Peanut yield was equivalent or greater by 25% or more in 3 of 4 site years utilizing strip-tillage indicating a yield advantage compared to conventional tillage”
Claim · model-written summary
Peanut market grade was not affected by any herbicide treatment or tillage method.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- any herbicide treatments or tillage methodse1
- Outcome
- market gradee1
- Direction
- not affectede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e1“Peanut market grade was not affected by any herbicide treatments or tillage methods evaluated”
Claim · model-written summary
Producers can maintain weed control, equivalent grade and yield in reduced-tillage systems with a high-residue conservation system integrated with a PRE plus POST herbicide program.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- high-residue conservation agriculture system integrated with a PRE plus POST herbicide systeme2
- Outcome
- weed control, equivalent grade and yielde2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strip-Tillage Peanut”
e2“Results show that producers can maintain weed control, equivalent grade and yield in reduced-tillage systems when utilizing a high-residue conservation agriculture system integrated with a PRE plus POST herbicide system”
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