Claim · model-written summary
Increasing nitrogen levels raised maize ear length, diameter, and weight.
- Treatment
- increasing nitrogen levelse0
- Outcome
- ear length, ear diameter, ear weighte0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“ear length, ear diameter, ear weight, grain weight/ear, number of row/ear, number of grain/row, 100-grain weight and grain yield (ardab/fed.) were significantly increased by increasing nitrogen levels”
t0“MAIZE”
Title
INFLUENCE OF MINERAL AND NITROGEN FERTILIZATION ON MAIZE YIELD AND ITS COMPONENTS
Magda A. Ewais; Amina M. Abd El-Latif; Dalia A. Sayed Journal of Soil Sciences and Agricultural Engineering /Journal of Soil Sciences and Agricultural Engineering 2009. doi:10.21608/jssae.2009.100733
Other claims from this paper (13)
- Intervention effect Combined organic and mineral nitrogen gave the greatest maize yield and yield components.
- Intervention effect Combined organic and mineral nitrogen gave the greatest maize NPK concentration and uptake.
- Association Increasing nitrogen levels raised maize chlorophyll a, b, and total chlorophyll content.
- Association Increasing nitrogen levels raised maize grain weight per ear, rows per ear, and grains per row.
- Association Increasing nitrogen levels raised maize 100-grain weight and grain yield.
- Intervention effect Nitrogen fertilizer up to 120 kg N/fed. increased maize nitrogen concentration and uptake.
- Intervention effect Nitrogen fertilizer up to 120 kg N/fed. increased maize protein content.
- Intervention effect Applying 120 kg N/fed. increased maize phosphorus concentration and uptake.
- Association Nitrogen levels up to 120 kg N/fed. increased maize oil percentage and oil yield.
- Association Nitrogen levels up to 120 kg N/fed. increased maize grain total carbohydrate percentage.
- Intervention effect Ammonium sulphate with compost at 120 kg N/fed. was the better treatment for maize grain yield and its components.
- Intervention effect Compost combined with inorganic nitrogen was more effective for maize yield than either fertilizer alone.
- Recommendation The authors conclude that organic manure improved maize yield and saved mineral fertilizer.