Claim · model-written summary
In a wet year, the 120 cm water table gave the highest corn yield.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- water table at the 120 cm depthe0
- Outcome
- yielde0
- Direction
- higheste0
- Qualifier
- In a wet yeare0
- Comparator
- that at the 60 cm depthe0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Yield and Nutrient Uptake”
e0“In a wet year, water table at the 120 cm depth gave the highest and that at the 60 cm depth the lowest yield”
Title
Corn Yield and Nutrient Uptake as Affected by Water‐Table Depth and Soil Submergence1
T. N. Chaudhary; V. K. Bhatnagar; S. S. Prihar Agronomy Journal 1975. doi:10.2134/agronj1975.00021962006700060004x
Other claims from this paper (11)
- Intervention effect In a wet year, the 60 cm water table gave the lowest corn yield.
- Intervention effect In a relatively dry year, corn yield decreased with deeper water tables.
- Intervention effect In a relatively dry year, corn yield was highest with water tables at 60 and 90 cm depths.
- Recommendation A water table at 120 cm depth is desirable for corn.
- Association Soil water depletion from the upper 30 cm before irrigation, ground water contribution and oxygen diffusion rate at 15 cm depth accounted for 79% of the variation in corn yields across water tables.
- Intervention effect N, P and K concentrations in corn grain and stover were not significantly affected by water-table treatments.
- Intervention effect Grain yields of corn were significantly reduced by submergence exceeding 1 day.
- Intervention effect For comparable durations, yield reductions were smaller for single than for repeated submergence.
- Intervention effect Submergence during early growth was more harmful to corn than during late growth.
- Intervention effect Prolonged soil submergence significantly reduced N, P and K concentrations in corn grain.
- Recommendation For optimum corn production, excess water should be drained from the root zone within 1 day of soil submergence.