Abstract
Field experiment was conducted during 1980–81 on the Indo-Gangetic alluvial soil of Pura, Kanpur to study the effects of added potassium and zinc on dry-matter production and uptake of these nutrients by potato crop. Increasing supply of potassium and zinc significantly increased the dry-matter production and concentration and uptake of respective nutrients in different crop components. The effects of combined application of potassium and zinc was positive in influencing the dry-matter production and K, Zn uptake by potato crop. Increasing supply of potassium showed beneficial effect on the absorption and translocation of zinc in plant system indicating thereby greater utilization of fertilizer zinc by the crop. Increasing supply of zinc, however, could not influence the concentration of potassium.
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