Claim · model-written summary
Zinc fertilizer increased maize grain yield by circa 18 % (mean of three years) compared with NPK fertilization alone.
- Treatment
- zinc fertilizere0
- Outcome
- Grain yielde1
- Direction
- increasee1
- Value
- circa 18%e1
- Comparator
- treatment fertilized only with NPKe1
- Setting
- three-year field studye0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“verified within a three-year field study, where zinc fertilizer was applied to maize plants at the 5th leaf stage”
e1“Grain yield increase was circa 18% (mean of three years) as compared to the treatment fertilized only with NPK”
Title
Effect of zinc foliar application on grain yield of maize and its yielding compone
J. Potarzycki; W. Grzebisz Plant Soil and Environment 2009. doi:10.17221/95/2009-pse
Other claims from this paper (7)
- Intervention effect Maize grain yield responded significantly to zinc foliar application in two of three study years.
- Intervention effect The optimal zinc foliar spray rate for a significant grain yield response in maize was 1.0 to 1.5 kg Zn/ha.
- Intervention effect Zinc fertilizer at 1.0 kg Zn/ha significantly increased total N uptake and grain yield of maize.
- Intervention effect Zinc treatment increased the number of kernels per maize plant by 17.8 % compared with the NPK plot.
- Association Kernels per plant showed the highest dependence on N uptake among the yield components (R2 = 0.79).
- Association The length of cob significantly shaped the final grain yield of maize under the zinc treatment.
- Intervention effect Zinc fertilizer improved maize yield structure elements.