Claim · model-written summary
LPOST glyphosate gave higher grain yield than the untreated control, 6.4 vs. 3.2 Mg ha−1.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- LPOSTe7
- Interactor
- weedse1weed
- Outcome
- yielde7
- Direction
- highere7
- Value
- 6.4 vs. 3.2 Mg ha −1e7
- Comparator
- untreated controle1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn ( Zea mays L.) develops leaf area slowly and competes poorly with early emerging weeds in the northeastern USA”
e7“the LPOST treatment yielded higher (6.4 vs. 3.2 Mg ha −1 )”
e1“the LPOST and untreated control, which had 1363 and 653 weeds m −2 at the V5–V6 stage in 2003 and 2004, respectively, had the same LAI at silking (1.75–1.87)”
Title
Time of Weed Removal with Glyphosate Affects Corn Growth and Yield Components
William J. Cox; Russell R. Hahn; Paul J. Stachowski Agronomy Journal 2006. doi:10.2134/agronj2005.0078
Other claims from this paper (10)
- Intervention effect EPOST glyphosate gave dry matter accumulation similar to the weed-free treatment, 738 g m−2.
- Intervention effect EPOST glyphosate gave leaf area index at silking similar to the weed-free treatment, about 3.50.
- Intervention effect EPOST glyphosate gave kernels per plant similar to the weed-free treatment, 528–549.
- Intervention effect EPOST glyphosate gave grain yield similar to the weed-free treatment, 11.1 Mg ha−1.
- Intervention effect MPOST glyphosate gave 35% less LAI at silking in corn.
- Intervention effect MPOST glyphosate gave 39% less dry matter accumulation at silking in corn.
- Intervention effect MPOST glyphosate gave 21% fewer kernels per plant in corn.
- Intervention effect MPOST glyphosate gave 25% less grain yield in corn.
- Intervention effect LPOST glyphosate gave the same LAI at silking as the untreated control, 1.75–1.87.
- Recommendation Growers should apply glyphosate by the V3–V4 stage in corn to avoid yield losses from early season weed competition.