Claim · model-written summary
Subsoil nutrient status was closely correlated with topsoil nutrient status.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e1“Rather close correlation of subsoil nutrient status with that of the topsoil was noted”
e3“Fertilizer yield response data for small grains in the case of phosphorus verified the laboratory observations”
Title
The Significance of Subsoil and Soil Series in Nebraska Soil Testing1
R. A. Olson; A. F. Dreier; R. C. Sorensen Agronomy Journal 1958. doi:10.2134/agronj1958.00021962005000040005x