Claim · model-written summary
Analysis of blades of older leaves in June is recommended as the procedure for diagnosing boron requirement in sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Outcome
- analysis of blades of older leaves in Junee1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“to sugar beet at seeding”
e1“The analysis of blades of older leaves in June when it is not too late to take the necessary corrective action, is the best procedure for sugar beet”
Title
Effects of soil and foliar applications of sodium borate to sugar beet
J. H. Hamence; P. A. Oram Journal of the Science of Food and Agriculture 1964. doi:10.1002/jsfa.2740150811
Other claims from this paper (16)
- Intervention effect Sodium borate applications were effective in controlling, but not always eliminating, boron-deficiency symptoms in sugar beet.
- Intervention effect Boron treatments had no detrimental influence on germination, population or growth of sugar beet.
- Intervention effect Boron treatments increased yields of roots and sugar, and sugar content, significantly only at severely deficient sites.
- Intervention effect Boron treatments did not improve juice purity in sugar beet.
- Intervention effect Boron treatments did not reduce noxious nitrogen in sugar beet.
- Intervention effect The trials give no support to a specific value of boron addition for increasing sugar content where soils have a normal boron supply.
- Intervention effect Boron treatment increased leaf weight more consistently than root yield in sugar beet.
- Association Serious boron deficiency in sugar beet is more prevalent in drier years and on lighter soils.
- Association No consistent differences in sugar beet were observed between liquid and solid boron applications.
- Intervention effect August boron treatment gave no good results in sugar beet.
- Method / resource Soil analysis of total or available boron is an unreliable means of diagnosing boron requirement in sugar beet, compared with analysis of older leaf blades.
- Association Boron contents of soils or plants are not reflected in sugar beet roots, nor are the results of boron addition.
- Observation Available boron in soils and total boron in sugar beet plants are highest in late summer.
- Observation Residual effects of August boron addition in sugar beet are small and well below the safety margin for less tolerant crops.
- Recommendation A routine application of borate to all sugar beet crops grown on lighter soils is a wise precaution.
- Intervention effect A foliar spray applied in June or after singling is just as effective as a fertiliser applied to the seed bed in sugar beet.