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Journal: NEW FINDINGS IN AGRICULTURE | Year:1388 | Volume:3 | Issue:4 (12) | Start Page:403 | End Page:411

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Title

EFFECT OF SEED INOCULATION WITH NITRAGIN AND DIFFERENT LEVELS OF UREA ON PHYSIOLOGICAL TRAITS AND BIOLOGIC YIELD OF MAIZE, CV. 704 GROWN IN COLD AND SEMI-ARID REGIONS

Pages

 Start Page 403 | End Page 411

Abstract

 In order to study effect of seed inoculation with NITRAGIN and different levels of urea rate on physiological traits and biologic yield of maize (Zea mays L.), cv. 704, a factorial experiment was conducted based on RBCD. Treatments were six levels of urea rate (0, 30, 60, 90, 120, 150 kg/ha) and seed inoculation with NITRAGIN or non-inoculation. Based on results, when seeds inoculated with NITRAGIN, LAI in CORN reduced from 2.4 to 2 in non-inoculated seeds. Treatment of inoculated seeds×application of 60 kg/ha urea had the highest LAI (3.4). The highest CHLOROPHYLL content index obtained from interaction of inoculation with NITRAGIN+120 kg/ha urea. Treatments of 150, 120 and 90 kg/ha urea with 212, 202 and 191 g/m2 dry weight of ear had significant difference with control and 30 kg/ha urea rate. Ear weight in inoculated seeds was 10% greater than non-inoculated ones. Biologic yield in CORN was affected by seed inoculation and urea rate. The highest CORN biomass (27t/ha) obtained from treatment fertilized with 150 kg/ha urea. It is recommended that in order to improvement of forage yield, CORN must be inoculated with NITRAGIN and fertilized with 150 kg/ha urea.

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