Claim · model-written summary
Under raingrown conditions a grain yield asymptote of 1600 kg/ha was reached with 50 kg N/ha.
- Treatment
- 50 kg N/hae2
- Outcome
- grain yield asymptotee2
- Direction
- was reachede2
- Value
- 1600 kg/hae2
- Setting
- Under raingrown conditionse2
SorghumNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum hybrids E57 and Goldfinger”
e2“Under raingrown conditions, a grain yield asymptote (1600 kg/ha) was reached with 50 kg N/ha, but rates higher than 150 kg N/ha (2700 kg/ha) would be required to achieve maximum yields under irrigation”
Title
DE Hibberd; J Standley; PS Want; et al. Australian Journal of Experimental Agriculture 1991. doi:10.1071/ea9910525
Other claims from this paper (12)
- Intervention effect Rates higher than 150 kg N/ha would be required to achieve maximum grain yields of 2700 kg/ha under irrigation.
- Intervention effect Rates of 10-20 kg P/ha in the raingrown experiment produced maximum yields for both hybrids.
- Intervention effect Phosphorus rates greater than 40 kg/ha would be required to achieve maximum yields under irrigation.
- Intervention effect The highest P rate of 40 kg/ha lowered apparent recovery of fertiliser P at anthesis in the raingrown experiment.
- Observation Apparent nitrogen recovery was much higher in the irrigated experiment than in the raingrown experiment.
- Observation No significant differences in apparent nitrogen recovery were found between N treatments in the irrigated experiment.
- Observation Goldfinger initially produced higher dry matter yields than E57.
- Observation E57 produced higher grain yields than Goldfinger.
- Observation Factors affecting grain yield ranked, in decreasing order of importance, as N, water and P.
- Observation Mean grain yield of control plots in the raingrown experiment was 1150 kg/ha.
- Observation Mean grain yield of control plots in the irrigated experiment was 1190 kg/ha.
- Observation Only the 75 kg N/ha treatments on the raingrown site showed an increase in soil nitrate a month after harvest.