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Determining Mehlich-3 and DTPA extractable soil zinc optimum economic threshold for maize
(Wiley, 2020-09-16)Maize (Zea mays L.) is one of the most susceptible crops to zinc (Zn) deficiency. However, in much of the world, soil Zn tests are poorly calibrated, and thus determining a critical soil test, level for Zn is challenging. ...