Claim · model-written summary
Soil nitrate at 15‐ to 30‐cm depth at planting indicated apparent nitrate use during microbial decomposition of cowpea residue.
- Taxon
- broccoli
Brassica oleracea var. italicae0 - Treatment
- cowpea crop residuese0
- Outcome
- Soil nitrate levelse0
- Qualifier
- 15‐ to 30‐cm soil depthse0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil nitrate levels at 15‐ to 30‐cm soil depths at the time of broccoli planting were consistent indicators of apparent nitrate utilization by microbial decomposition of cowpea crop residues.”
Title
Utilization of Cowpea Crop Residues to Reduce Fertilizer Nitrogen Inputs with Fall Broccoli
Judith L. Schroeder; Brian A. Kahn; J. Q. Lynd Crop Science 1998. doi:10.2135/cropsci1998.0011183x003800030021x
Other claims from this paper (8)
- Intervention effect Cowpea residues alone did not supply enough nitrogen for optimum marketable broccoli production.
- Intervention effect Marketable broccoli yields sometimes did not differ significantly between controls and cowpea residue plots receiving 84 kg ha −1 fertilizer N.
- Intervention effect Broccoli transplant mortality tended to increase in cowpea residue plots.
- Intervention effect Cowpeas negatively affected broccoli stand establishment in the fourth study.
- Association Cowpeas and trifluralin interacted in their effects on broccoli yield.
- Intervention effect Broccoli following cowpeas with reduced fertilizer N usually had lower petiole N than controls.
- Observation Cowpea–broccoli succession did not consistently reduce fertilizer N without adverse effects on broccoli.
- Recommendation The authors do not recommend cowpea residues to reduce fertilizer N in fall broccoli.