Claim · model-written summary
Yield differences among fertilizer sources in field experiments were not significant.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the observed differences in the crop yield of the field experiments were not significant”
t0“maize (Zea mays L.)”
Title
E. P. Papanicolaou; V. D. Skarlou; C. Nobeli; et al. The Journal of Agricultural Science 1983. doi:10.1017/s0021859600038715
Other claims from this paper (12)
- Intervention effect Phosphorus alone had no effect on maize yield.
- Intervention effect Nitrogen alone increased maize yield.
- Intervention effect Combined nitrogen and phosphorus increased maize yield.
- Intervention effect Ammonium sulphate gave the highest maize yields in the pot experiment.
- Intervention effect Nitrogen increased maize utilization of phosphorus fertilizer.
- Intervention effect Incorporation placement was superior in the pot experiment.
- Intervention effect Incorporation placement showed a similar superior trend in field experiments except for ammonium phosphate-sulphate.
- Observation Ammonium fertilizer was better utilized than nitrate fertilizer.
- Observation Urea fertilizer was better utilized than nitrate fertilizer.
- Association Higher nitrogen utilization was associated with higher yields.
- Intervention effect Phosphorus fertilizer benefited nitrogen fertilizer utilization.
- Intervention effect Adding 120 kg N/ha enhanced soil nitrogen taken up in maize grain by 53%.