Claim · model-written summary
Nitrogen fertilization decreased corn root radius in two of three years.
- Taxon
- corn
Zea mays subsp. mayse1 - Treatment
- Nitrogen fertilizatione0
- Outcome
- root radiuse0
- Direction
- decreasede0
- Qualifier
- 2 of the 3 yre0
- Comparator
- 0e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization decreased milligrams per meter of root and root radius in 2 of the 3 yr, allowing root length to increase in response to N without altering the weight of roots.”
e1“The objective was to compare corn ( Zea mays L.) root morphology and distribution in plots under minimum tillage (MT) for 7 yr to conventional tillage (CT) at N fertilization treatments of 0 and 180 kg N/ha.”
Title
Corn Root Growth and Distribution as Influenced by Tillage and Nitrogen Fertilization1
E. L. Anderson Agronomy Journal 1987. doi:10.2134/agronj1987.00021962007900030029x
Other claims from this paper (10)
- Observation Roots collected to 0.6 m accounted for 82% of total postharvest root weight.
- Intervention effect Tillage had no significant effect on corn plant growth or grain yield.
- Intervention effect Conventional tillage increased corn root dry weight in only one year.
- Intervention effect Minimum tillage increased corn root weight in the top 0.07 m in two of three years.
- Intervention effect Nitrogen fertilization increased corn root weight in the top 0.07 m in two of three years.
- Observation Corn root mass decreased 90% between row and 0.19 m away in the topsoil.
- Intervention effect Nitrogen fertilization decreased corn milligrams per meter of root in two of three years.
- Intervention effect Nitrogen increased corn root length without altering root weight.
- Observation Corn roots grew under drought and nitrogen stress while shoot growth and yield were limited.
- Observation The most rapid corn root development occurred in the eight weeks after planting.