Claim · model-written summary
Routine protective spray application increased total yield of Majestic potato by 2.1 tons per acre at the second farm.
- Taxon
- potato
Solanum tuberosume0 - Material
- Majestice0
- Treatment
- Routine protective spray applicatione0
- Outcome
- total yielde1
- Direction
- increasese1
- Value
- 2.1 tons per acree1
Not reportedGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Routine protective spray application to commercial Majestic potato crops on two farms”
e1“gave highly significant average increases in total yield of 1.2 and 2.1 tons per acre (3.0 and 5.3 tonnes per ha) respectively in rows not affected by tractor wheels”
Title
Potato blight control in east and south‐east Scotland 1959–68
A. E. W. BOYD Annals of Applied Biology 1973. doi:10.1111/j.1744-7348.1973.tb07721.x
Other claims from this paper (16)
- Intervention effect Routine protective spray application increased total yield of Majestic potato by 1.2 tons per acre.
- Intervention effect Yield increases from spraying exceeded 1 ton per acre in 6 and 7 years.
- Intervention effect The yield increases from spraying were composed almost entirely of ware tubers.
- Intervention effect There was no average yield difference whether the first spray was applied when the haulm closed in the rows or after the first general forecast.
- Intervention effect The total yield reduction in rows affected by tractor wheels tended to offset the benefit of spray application.
- Intervention effect With an eight-row spray boom, tractor wheel effects halved the potential overall yield increase.
- Observation The yield reduction from tractor wheels was confined to the ware fraction.
- Observation Spraying of King Edward potato over a shorter period in eastern Scotland generally had little consistent effect on yield.
- Observation Considerable yield gains were obtained in Majestic potato even when blight first appeared in mid-August in some seasons.
- Observation Over 10 years there were 5 blight years, compared with 1 in 10 years for the north of England.
- Association Spread of blight from local sources interfered with the timing of spray applications and with the effectiveness of the general forecast.
- Observation Infection of Majestic tubers was generally low.
- Intervention effect Spraying significantly decreased overall average tuber infection at one Majestic site.
- Intervention effect Spraying significantly decreased overall average tuber infection in the King Edward series.
- Association Tuber blight varied inversely with tuber size in Majestic potato.
- Association Tuber blight varied inversely with tuber size in King Edward potato.