Claim · model-written summary
NK reduced yield to near the unfertilized control level.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- N and K fertilizerse1
- Outcome
- yielde0
- Direction
- reducede0
- Qualifier
- similar to the level of CKe0
- Comparator
- no fertilizere2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulting in the reduced yield of NK similar to the level of CK”
e1“N and K fertilizers (NK)”
e2“no fertilizer (CK)”
t0“Winter Wheat”
Title
D. Jiang; T. Dai; Q. Jing; et al. Photosynthetica 2004. doi:10.1023/b:phot.0000046164.77410.ef
Other claims from this paper (9)
- Intervention effect Combined organic manure and inorganic fertilizer gave higher flag-leaf photosynthetic rate, photosystem 2 activity, chlorophyll content, and leaf area index at mid grain filling than inorganic fertilizers alone.
- Intervention effect Combined organic and inorganic fertilizer slowed the late grain-filling decline in flag-leaf photosynthetic traits relative to inorganic fertilizers alone.
- Intervention effect Combined organic and inorganic fertilizer produced higher canopy photosynthetic traits at mid grain filling than inorganic fertilizers alone.
- Observation The organic-plus-inorganic and inorganic-only treatments produced different grain yields.
- Intervention effect Within both fertilizer treatment classes, added N, P, and K raised flag-leaf and canopy photosynthetic abilities, except under NK.
- Intervention effect Within both fertilizer treatment classes, added N, P, and K raised yield levels except under NK.
- Observation NK increased soil N and K but decreased soil P.
- Mechanism The authors attributed reduced photosynthetic characteristics and leaf area index under NK to nutrient imbalance in soil.
- Mechanism The authors attributed the rapid decline in flag-leaf photosynthetic traits under NK to nutrient imbalance.