Claim · model-written summary
Fertilization treatments NPK, NP, NK and PK significantly reduced weed species number and the Shannon-Wiener index relative to the unfertilized control.
- Taxon
- wheat
Triticum aestivume5 - Treatment
- NPK, NP, NK, and PK fertilizatione1
- Interactor
- weed speciese1weed
- Outcome
- Numbers of weed species present and the Shannon-Wiener indexe1
- Direction
- lowere1
- Comparator
- fertilization-free control treatment (CK)e1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Numbers of weed species present and the Shannon-Wiener index were significantly lower under NPK, NP, NK, and PK fertilization treatments than under the fertilization-free control treatment (CK)”
e5“in the wheat-soybean rotation system studied”
Title
Junfeng Pan; LiGan Zhang; Li Wang; et al. Global Ecology and Conservation 2019. doi:10.1016/j.gecco.2019.e00870
Other claims from this paper (6)
- Observation Species richness and the Shannon-Wiener index of the weed seed bank decreased with increasing soil depth.
- Observation The Pielou index of the weed seed bank increased with increasing soil depth.
- Observation The relationship of the Simpson index with soil depth was complex and unclear.
- Observation The vertical distribution of dominant weed species differed among fertilization treatments.
- Recommendation The authors recommend PK fertilization for suppressing weeds in the wheat-soybean rotation.
- Recommendation The authors state that effects of fertilization treatments on weeds warrant careful attention.