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All Journal Journal of Tropical Soils International Journal on Food, Agriculture and Natural Resources (IJFANRES)
Sebnie, Workat
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Agriculture, Biological Sciences & Forestry Environmental Science

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Potassium, Zinc, and Boron Nutrients Effect on Sorghum (Sorghum bicolor L. Moench) Yield in Wag-Lasta, Northern, Ethiopia Esubalew, Tilahun; Sebnie, Workat
International Journal on Food, Agriculture and Natural Resources VOL 5, NO 2 (2024): IJ-FANRES
Publisher : Food, Agriculture and Natural Resources - NETWORKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46676/ij-fanres.v5i2.323

Abstract

In Ethiopia using inorganic fertilizer started in the early 1970s. But it still depended solely on urea and DAP. Today, according to ATA and Ministry of Agriculture and Natural Resources K, Zn, B, S, and Cu are in deficit in Ethiopia and Amhara Region as well as in Wag-Lasta areas. But some studies conducted in Wag-Lasta and throughout the region in different crops indicate that these nutrients had no response on crop yields. So, this experiment was conducted in 2017 rain feed cropping season on five farmers’ parcels per location to verify the response of sorghum to potassium, zinc, and boron nutrients. The treatments were: NPS, NPSK, NPSZnB, and NPSZnBK, with the recommended rate of 46 and 23 kg ha-1 N and P2O5,respectivelyfor Sekota,23 kg ha-1N, andP2O5 for Lasta. Moreover, 150, 1.47, and 0.07 kg ha-1 KCl, Zn, and B, respectively used uniformly in both locations. The experiment was laid out in randomized complete block design (RCBD) with three replications. The collected data were analyzed by SAS software version 9.0. Analysis of variance revealed that the application of potassium, zinc, and boron had no significant effect (P ≤0.05) on sorghum yield and yield components at all sites. The exchangeable potassium content in the soil of the study sites is above the critical value level. The result disagrees with the soil fertility map which showed more than 98% of potassium deficiency and more than 80% NPSZnB deficiency. Hence, the application of K, Zn, and B nutrients had no yield advantage over the recommended N and P nutrients in the Wag-Lasta areas. Therefore, currently to increase production and productivity of crops in Wag-Lasta areas using of recommended rate of nitrogen and phosphorous with organic fertilizer sources for each district is the best option rather than using K, Zn, and B nutrients.
Determination of Nitrogen and Phosphorus Fertilizer Rates for Sorghum (Sorghum bicolor L. Moench) Production in Wag-Lasta, Ethiopia ashebir, merse mengesha; Sebnie, Workat
International Journal on Food, Agriculture and Natural Resources Vol 6, No 1 (2025): IJ-FANRES
Publisher : Food, Agriculture and Natural Resources - NETWORKS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46676/ij-fanres.v6i1.419

Abstract

The decline in soil fertility due to topsoil loss caused by erosion, leaching, and continuous crop residue removal is a major challenge for crop production in the Wag-Lasta areas of Ethiopia. To address this issue, a field experiment was carried out in Lasta and Sekota districts, Eastern Amhara, Ethiopia, during the main rainy season in 2014 and 2016. The purpose of the experiment was to determine the optimal nitrogen and phosphorus fertilizer rates for Sorghum bicolor production. The experiment involved four nitrogen rates (0, 23, 46, 69 kgha-1N) and three phosphorus rates (0, 23, 46 kg kgha-1 P2O5) arranged in a randomized complete block design with three replications in a factorial arrangement. Soil samples were collected from 0–20 cm to determine selected soil properties, and agronomic data were collected following standard procedures. The data were then analyzed using SAS software version 9.0, and significant treatment means were separated using the least significant difference at 5% significance level. The results showed that nitrogen and phosphorus rates significantly affected sorghum yield and yield components at both locations. Specifically, applying 23 kg ha-1 N and 46 kg ha-1 P2O5 increased sorghum yield by 60% compared to the control at Sekota, while 23 kg ha-1 N and 23 kg ha-1 P2O5 gave a 125% yield increment over the control at Lalibela. Therefore, it was recommended to apply 23 kg ha-1 N and 46 kg ha-1 P2O5 for sorghum production in Sekota and 23 kg ha-1 N and 23 kg ha-1 P2O5 in Lalibela.
Optimizing Nitrogen Fertilizer for Wheat Production in Moisture-Deficit Areas of Northern Ethiopia Sebnie, Workat; Melak, Ewunetie; Esubalew, Tilahun; Lamesgn, Haymanot; Asmelie, Tesfa; Abera, Messay
JOURNAL OF TROPICAL SOILS Vol. 29 No. 2: May 2024
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2024.v29i2.59-66

Abstract

Depleting soil nutrients is among the significant factors affecting production and productivity in Ethiopia. From the nutrients, nitrogen is the most yield-limiting, which governs wheat production. Therefore, the study was conducted to examine the effect of nitrogen on the yield and yield components of bread wheat varieties. The experiment was implemented in the 2019 and 2020 cropping seasons at Sekota and Lasta districts on the farmers’ field. The treatments consisted of a factorial combination of four levels of nitrogen (0, 46, 69, and 92 kg ha-1) and two varieties of wheat (Sekota-1 and Hibst), which were replicated three times in a randomized complete block design. Each treatment was provided with 23 kg ha-1 triple supper phosphate (P2O5). The study’s results indicated that grain and yield-related traits were significantly affected by nitrogen application. The increasing rate of nitrogen up to 92 and 69 kg ha-1 increases wheat grain and biomass yield by (150.3% and 54.1%) and (95.9 and 60%) in Sekota and Lasta districts, respectively. The highest grain yield (2562 and 2980 kg ha-1) was obtained from applying 92 and 69 kg ha-1 N at Sekota and Lasta, respectively. Therefore, applying 92 and 69 kg ha-1 N is the appropriate rate and recommended for the Sekota and Lasta districts, respectively.
Co-Authors Abera, messay ashebir, merse mengesha Asmelie, Tesfa Esubalew, Tilahun Lamesgn, Haymanot Melak, Ewunetie