YIELD AND CHEMICAL COMPOSITION OF CORN (ZEA MAYS L.) AS AFFECTED BY BORON MANAGEMENT
|Adem Günes1, Nizamettin Ataoğlu1, Aslıhan Esringü1, Oğuzhan Uzun2, Sinan Ata1, Metin Turan1*
|Corresponding Author: Metin Turan, Atatürk University, Faculty of Agriculture, Department of Soil Science, 25240, Erzurum / TURKEY,E-mail: [email protected]/ +905339352756|
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Boron (B) deficiency is widespread in the Anatolia region of Turkey. This could impact production and quality of corn (Zea mays L.) A 2-yr field experiment was conducted for determine the optimum economic B rate (OEBR), critical soil test and tissue B values for yield and quality response of corn to B fertilizer soil application (SA) at 5 doses (0, 1, 3, 9 and 12 kg B ha-1). OEBR of SA ranged 7.7 kg B ha-1 with an average yield of 75.10 Mg ha-1. The average soil B content at the OEBR was 1.02 mg kg-1while leaf tissue B content amounted to 20.61 mg kg-1 and shoot B content amounted to 13.43 mg kg-1. Boron application increased shoot and leaf tissue N, Ca, Mg, P, K, and Mn but decreased tissue Fe, Zn, and Cu content. We conclude a B addition of 7.7 kg ha-1 for soil application is sufficient to elevate soil B levels to non-deficient levels. Similar studies with different soils and initial soil test B levels are needed to conclude if these critical soil test values and OEBR can be applied across the region.