American Journal of Life Sciences
Volume 8, Issue 4, August 2020, Pages: 52-59
Received: Jul. 26, 2020;
Accepted: Aug. 5, 2020;
Published: Aug. 13, 2020
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Bizuwork Tafes, Ethiopia Institute of Agriculture Research, Debre Zeit Agricultural Research Centre, Debre Zeit, Ethiopia
Yibekal Alemayehu, Collage of Agriculture and Environmental Science, Haramaya University, Haramaya, Ethiopia
In order to investigation the effects of blended NPSB and N fertilizer rates on physiological and growth indices in durum wheat, a randomized complete block design in a factorial arrangement and replicated 3 times per treatment was conducted in research field of Debre Zeit Agricultural Research Center in 2017 and 2018 under rain-fed condition. The treatments consisted of 4 levels of blended (0, 50, 100, and 150 kg NPSB ha-1) and N (0, 46, 69 and 92 kg N ha-1) fertilizers. The results revealed that leaf area index (LAI) at 64 days after sowing (DAS), crop growth rate (CGR) at 34-64 and 64-94 DAS, relative growth rate (RGR) at 34-64 DAS were significantly (P<0.05) affected by the interaction effects of blended NPSB and N fertilizers. Chlorophyll content (CHL), plant height (PH), days to heading (DH), and days to physiological maturity (DPM) were significantly influenced only by N levels. The highest LAI (4.50), CGR (4.37 g m-2°Cdays-1) at 34-64 DAS and (14.81g m-2°Cdays-1) at 64-94 DAS and RGR (0.0077 g g-1°Cdays-1) at 34-64 DAS were observed at combined application of 150 kg blended NPSB with 92 kg N ha-1. The highest PH (89.4 cm), CHL (40.09), DH (60.92 days) and DPM (116.75 days) were noted in 92 kg N ha. On overall performance application of 150 kg NPSB with 92 kg N/ha levels showed better results on the growth and physiological traits of durum wheat as compared to other blended and N levels.
Physiological Growth Indices of Durum Wheat (Triticum turgidum L. Var. durum) as Affected by Rates of Blended and Nitrogen Fertilizers, American Journal of Life Sciences.
Vol. 8, No. 4,
2020, pp. 52-59.
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