Claim · model-written summary
Combined sheep manure and fertilizer produced much higher yield than manure alone or no fertilizer.
- Treatment
- sheep manure combined with the chemical fertilizere0
- Outcome
- yielde0
- Direction
- much highere0
- Comparator
- pure sheep manure and no fertilizere0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of sheep manure combined with the chemical fertilizer is much higher than that of pure sheep manure and no fertilizer.”
t0“maize”
Title
Chun Yang; Wenbin Du; Lili Zhang; et al. Complexity 2021. doi:10.1155/2021/4330666
Other claims from this paper (18)
- Intervention effect Unfertilized maize had the lowest yield, followed by sheep manure alone.
- Intervention effect The 15% manure combination yielded highest among combined treatments.
- Intervention effect The 30% manure combination yielded lowest among combined treatments.
- Observation Yield did not vary obviously among combined treatments.
- Intervention effect T3 raised maize kernel fat content 8.9% relative to chemical fertilizer alone.
- Intervention effect T4 raised maize kernel fat content 5.6% relative to chemical fertilizer alone.
- Intervention effect T3 raised maize kernel protein content 2.3% relative to chemical fertilizer alone.
- Intervention effect T4 raised maize kernel protein content 2.5% relative to chemical fertilizer alone.
- Intervention effect T5 raised maize kernel protein content 2% relative to chemical fertilizer alone.
- Intervention effect T3 increased partial nitrogen fertilizer productivity 3.7% relative to T2.
- Intervention effect T5 increased partial nitrogen fertilizer productivity 0.8% relative to T2.
- Intervention effect T3 increased agronomic nitrogen utilization 10.9% relative to T2.
- Intervention effect T5 increased agronomic nitrogen utilization 1.6% relative to T2.
- Intervention effect Manure alone performed much worse than T2 for nitrogen efficiency.
- Observation Soil nitrate nitrogen increased 30.4% at 40–60 cm.
- Observation Soil nitrate nitrogen increased 56.5% at 60–80 cm.
- Observation Soil nitrate nitrogen increased 11.6% at 80–100 cm.
- Mechanism Authors infer that mixed fertilizer limits nitrate movement to deep soil and groundwater pollution.