BORON-SUPPLYING POWER OF SEVERAL SOUTH CAROLINA SOILS

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Abstract
Eight crops of sunflowers grown in virgin soil of 19 important agricultural soil series to determine boron-supplying power. Organic matter content had more effect on water-soluble boron in uncropped soils than either texture or pH. With one exception, all the soils released boron to plants. To evaluate boron-supplying power of soils, both amount boron released and percentage decrease in water-soluble boron must be considered. Other factors equal, heavier textured soils will maintain rate of release for longer period than light soils.