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Asian Journal of Plant Sciences
Year: 2002  |  Volume: 1  |  Issue: 4  |  Page No.: 476 - 477

Response of Maize to Applied Soil Zinc

M. Tariq, M. A. Khan and S. Perveen    

Abstract: A field experiment was conducted to study the response of maize to varying levels of applied zinc. Zinc was applied @ 0, 5, 10, 15 and 20 kg ha -1 along with 120 N, 90 P2O5 and 60 K2O kg ha -1. Results indicated that the yield and yield components were significantly increased with applied zinc over control (with out fertilizer) and NPK alone treated plots. Zinc concentration in soils, in leaves and total uptake by maize also significantly increased with applied zinc, indicated zinc was deficient in the test soil. Therefore, zinc fertilization is necessary for maize crop under prevailing conditions. Moreover, the extraction capacity of AB-DTPA > DTPA for soil zinc and showed close correlation with plant zinc, suggested former method is suitable for extracting available zinc in calcareous soils.

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