Claim · model-written summary
Available nutrients declined with soil depth to 60 cm.
- Taxon
- Cotton
Gossypium hirsutumt0 - Outcome
- 速效养分含量e0
- Direction
- 下降e0
- Setting
- 0~60 cm土壤各层e0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0~60 cm土壤各层速效养分含量随深度的增加呈下降的趋势”
t0“Cotton”
Title
Zhi-Bin YANG ACTA AGRONOMICA SINICA 2008. doi:10.3724/sp.j.1006.2008.01393
Other claims from this paper (14)
- Observation At both sites under N0, soil alkali hydrolyzable nitrogen first declined then rose with development.
- Observation Under the other four treatments, soil alkali hydrolyzable nitrogen fell, rose after topdressing, fell again, then recovered after boll opening.
- Observation Available phosphorus at both sites initially declined and later increased.
- Observation Available potassium at both sites initially declined and later increased.
- Association At Nanjing under N1 to N4, alkali hydrolyzable nitrogen declined with horizontal distance from cotton.
- Association At Nanjing under N1 to N4, available phosphorus declined with horizontal distance from cotton.
- Observation N0 showed no clear horizontal variation.
- Association Nanjing showed greater spatiotemporal variation in alkali hydrolyzable nitrogen than Anyang.
- Association Anyang showed greater spatiotemporal variation in available phosphorus than Nanjing.
- Association Available potassium declined with distance at 0 to 60 cm in Nanjing and 20 to 60 cm in Anyang.
- Association At 0 to 20 cm in Anyang, available potassium showed the opposite distance trend.
- Intervention effect At Anyang, 360 kg hm-2 N gave the highest lint yield and favorable yield components and fiber traits.
- Intervention effect At Nanjing, 240 kg hm-2 N gave the highest lint yield and favorable yield components and fiber traits.
- Recommendation Fertilizer rates should be set by nutrient variation during flowering and boll stage in each ecological region.