Claim · model-written summary
Following phosphorus depletion, lucerne yield showed a linear response up to 80 kg/ha P.
- Taxon
- Lucerne
Medicago sativat0 - Treatment
- 80 kg/ha Pe2
- Outcome
- linear yield responsee2
- Direction
- increaseinferrede2
- Qualifier
- Following this depletione2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nutrition of irrigated crops on an alkaline brown clay soil at Trangie, New South Wales. 1. Lucerne”
e2“Following this depletion a linear yield response up to 80 kg/ha P was found (experiment 2)”
Title
Nutrition of irrigated crops on an alkaline brown clay soil at Trangie, New South Wales. 1. Lucerne
DK Muldoon Australian Journal of Experimental Agriculture 1986. doi:10.1071/ea9860445
Other claims from this paper (9)
- Intervention effect Omitting phosphorus reduced first-year lucerne yields to less than 14 t/ha.
- Observation Lucerne yields decreased in the second year as the applied phosphorus was depleted.
- Intervention effect Omitting phosphorus fertiliser reduced lucerne plant phosphorus concentration from 0.23 to 0.21% when sampled 15 months after sowing.
- Intervention effect Omitting zinc reduced the plant zinc concentration of lucerne.
- Intervention effect Omitting nitrogen, potassium, sulfur or zinc from the fertiliser had no effect on lucerne yields.
- Observation Plant phosphorus concentration of lucerne decreased with time in all treatments.
- Observation Available soil phosphorus decreased to 6-7 ¦g/g after 6 months from an initial 12 ¦g/g.
- Observation Available soil phosphorus decreased further to 2 ¦g/g after 30 months.
- Intervention effect Fertiliser phosphorus raised soil phosphorus level, but this was depleted to 2-3 ¦g/g in 30 months.