Application Note LAQUAtwin is a series of pocket ION meters. Using Ion Selective Electrode (ISE) technology, they are available for measuring Conductivity, Calcium, Nitrate, Potassium, Sodium, Salt concentration and pH measurement. Using just a tiny amount of sample, the LAQUAtwin proprietary flat sensors can quickly and accurately measure the values of the chemical parameters in the field. Conductivity and Elephant’s Foot Testing Introduction A physiological disorder in greenhouse hydroponic sweet pepper (Capsicum annuum L.), where the base of the plant’s stem becomes swollen below the cotyledon level and wounds develop at the base of the stem’s epidermis has been named “Elephant’s Foot”. Sodium is a mineral constantly present in soil, but an excess of it concentrated at the

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