Claim · model-written summary
Optimal nitrogen rates increased grain yield by 10.5% versus 50–70% optimal rates.
- Taxon
- wheat ( Triticum aestivum L.)/maize ( Zea mays L.)
Triticum aestivume1 - Treatment
- ONRe0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 10.5%e0
- Comparator
- 50–70% ONR treatmente0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The ONR increased grain yield by 10.5% in comparison with the 50–70% ONR treatment and achieved yields comparable to the 130–150% ONR treatment.”
e1“wheat ( Triticum aestivum L.)/maize ( Zea mays L.) double cropping system.”
Title
Long‐term optimization of crop yield while concurrently improving soil quality
Junxiao Pan; Ling Zhang; Xiaoming He; et al. Land Degradation and Development 2019. doi:10.1002/ldr.3276
Other claims from this paper (8)
- Intervention effect Optimal nitrogen rates produced yields comparable to 130–150% optimal rates.
- Intervention effect Optimal nitrogen rates reduced applied nitrogen by 38.5% relative to farmer practice without yield loss.
- Intervention effect Soil organic carbon stocks and carbon sequestration rates were highest under optimal nitrogen rates.
- Intervention effect Soil microbial biomass carbon was highest under optimal nitrogen rates.
- Intervention effect Optimal nitrogen rates significantly increased soil aggregate weight diameter relative to control.
- Intervention effect Optimal nitrogen rates reduced fungal richness and diversity relative to control.
- Intervention effect Optimal nitrogen rates reduced bacterial richness relative to farmer practice.
- Association Soil microbial community structure was significantly related to soil organic carbon, organic carbon input, and inorganic nitrogen.