FAO联合国粮农组织：2024年土壤中硼测定的标准操作程序：热水提取报告（英文版）

The hot water-soluble B procedure is the most commonly used method for predicting the concentration of B that will be available to plants in a soil solution. Hot water-soluble B is commonlyused because the water-soluble B extracted by the hot water method correlates positively to plant growth response, as it measures B from the adsorbed, organic, and soluble pools of the soil at boiling temperatures. The aim of this SOP is to guide users on the determination of hot water-soluble B in soils th