Claim · model-written summary
At the full nitrogen rate, controlled-release fertilizers cost four times as much as conventional fertilizer.
- Treatment
- CRFs at the full N ratee0
- Outcome
- cost of fertilizing citruse0
- Direction
- four timese0
- Value
- four timese0
- Comparator
- conventional fertilizere0
CitrusNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cost of fertilizing citrus with CRFs at the full N rate was four times the conventional fertilizer cost, whereas the return was 15% greater.”
t0“YIELD AND RELATIVE COST OF CONTROLLED-RELEASE FERTILIZER ON YOUNG BEARING CITRUS TREES”
Title
YIELD AND RELATIVE COST OF CONTROLLED-RELEASE FERTILIZER ON YOUNG BEARING CITRUS TREES
Robert E. Rouse Proceedings of the Florida State Horticultural Society 1999
Other claims from this paper (9)
- Intervention effect Prokote Plus, Nutricote, and Sierra produced 4.9 to 4.8 boxes per tree over four years, versus 4.3 with conventional fertilizer.
- Intervention effect Prokote Plus and Sierra produced higher solids yield than conventional fertilizer.
- Intervention effect Prokote Plus and Sierra produced higher gross returns than conventional fertilizer.
- Intervention effect Prokote Plus exceeded Escote in fruit and solids yield.
- Intervention effect Prokote Plus exceeded Escote and Meister in dollar return.
- Observation The critical nitrogen rate for conventional fertilizer was 76% of the full rate at 26.9 pounds solids per tree.
- Observation The critical nitrogen rate for Prokote Plus, Nutricote, and Meister was 100% of the full rate.
- Intervention effect At the full nitrogen rate, controlled-release fertilizers had 15% greater return.
- Recommendation Current controlled-release fertilizer prices make them uneconomical as the main nutrient source for citrus.