Response of Tef (<i>Eragrostis tef</i>(Zucc.) Trotter) to Balanced Fertilizer in Wolaita Zone, Southern Ethiopia

• 作者: Desta Ekero Wassie Haile Alemu Lelago Mesfin Bibiso
• 来源期刊: 农业化学和环境(英文)
• 学科: 经济
• 关键词: Balanced Fertilizers TEF Yield Soil Fertility
• 年，卷（期）: 2021,（1）
• 页码范围: 124-142
• 页数: 19页
• 分类号: F42

摘要

Tef is grown as<span> an</span><span> important domestic cereal in Ethiopia. Currently</span><span>,</span><span> global attention is given for it particularly as a </span><span>“</span><span>health food</span><span>”</span><span> due to the absence of gluten and gluten like proteins in its grains. Regardless of its wider adaptation, productivity of tef is low in the country with the national average grain yield of 1.379 tons·ha</span>^{<span style="vertical-align:super;">-1</span>}<span>. This is mainly because of low soil fertility and severe organic matter depletion intensified by low rate of chemical fertilizer application. This study was conducted to evaluate effects of balanced fertilizers on the yield, yield components of tef and to determine economic feasibility for tef production in Wolaita. The experiment was laid out in a randomized complete block design (RCBD) with sixteen treatments replicated three times. The treatments consist of factorial combinations of four rates of K (Potassium) (0, 25, 50, and 100 kg/ha) and four rates of NPSB (Nitrogen, Phosphorus, Sulfur and Boron) (0, 50, 100, 200 kg/ha) fertilizers. Fertilizer types such as urea (46-0-0), NPSB (18.9-37.7-6.95-0.1) and K (0-0-60) were used as a source of nutrients. The soil analysis result indicated that, most of the nutrients are below optimum level to support the potential crop production. This may be related with reduced farm management practices and continuous cropping with little or no fertilizers input. In this study</span><span>,</span><span> it was found that, the combined application of NPSB and K fertilizers had </span><span>a </span><span>significant effect on growth, yield and yield components of tef. Among the treatments studied, NPSB (100</span><span> </span><span>Kg/ha) and K (50</span><span> </span><span>Kg/ha) gave greater grain yield. Furthermore, this treatment enhanced growth and yield related parameters compared to the control treatment. Thus, it is conceivable to recommend each to attain greater grain yiel