Amare, Tadele
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Soil Nutrient Inflow-Outflow Dynamics and Balance on Agricultural Cultivated Farms in Northern Ethiopia Esubalew, Tilahun; Amare, Tadele; Molla, Eyayu
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.v5i2.318

Abstract

Soil fertility is the controlling factor of  agricultural production worldwide including Waghimera zone, Ethiopia. However, it has been diminished from time to time and leads to low crop yield. Measuring of soil nutrient inflow-outflow affords necessary information about the current nutrient status of the soils, and to take appropriate nutrient management practices. The study was conducted to estimate the full soil nutrient balance of cultivated farms in the northern, of Ethiopia, in the 2020/21 main season. Inflow and Outflow of N, P, and K into, and out of farms were measured through the interview, field measurement, laboratory analysis, USLE model, and pedo-transfer functions. The full N balance of barley, tef, and wheat were -66.7, -8.9, and -47.1 kg ha-1 yr-1, respectively. P full balance was -5.4, 1.4, and -1.9 kg ha-1 yr-1 for barley, tef, and wheat farms, respectively. Whereas, K balance was also -12.4, -3.3, and -6 kg ha-1 yr-1 for barley, tef, a nd wheat, respectively. The balance quantification was done by subtracting nutrient outflows from the inflows. The results revealed that N, P, and K had negative balances except for P in tef. Grain yield and crop residue removal were the major paths of nutrient loss. To sustain, and boost agricultural production, reversing the imbalance between inflows, and outflows is critically essential for the study area. The current highly depleted nutrient should be corrected by adding sufficient organic, and inorganic nutrient sources, like in situ manuring, biochar, green manure, and remaining crop residue in the fields.
Quantification of vermicompost with nitrogen equivalence ratio on soil chemical properties and onion (Allium cepa L.) production in North Western Amhara Region Ethiopia Addis, Zelalem; Amare, Tadele; Feyisa, Tesfaye
International Journal on Food, Agriculture and Natural Resources Vol 5, No 4 (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.v5i4.402

Abstract

The experiment was conducted to determine the effects of vermicompost with equivalent nitrogen ratios on soil chemical properties and onion production in Northwestern Ethiopia. The experiment comprised six treatment levels: Control, Recommended Nitrogen, 75% Recommended Nitrogen + 25% Vermicompost, 50% Recommended Nitrogen + 50% Vermicompost, 25% Recommended Nitrogen + 75% Vermicompost, and 100% Vermicompost. These were arranged in a Randomized Complete Block Design (RCBD) with three replications. Data were analyzed using Analysis of Variance (ANOVA) via SAS software. The results showed that vermicompost combined with nitrogen affected the yield components of onions. However, soil properties, except for Total Nitrogen (TN) and Organic Carbon (OC), were not significantly affected by the treatments. The application of 50% vermicompost with 50% nitrogen resulted in the highest bulb yield (23.6 t/ha) compared to the control. Therefore, for a quick improvement in yield, applying 50% vermicompost with 50% nitrogen can be preferable in the study area and areas with similar agro-ecological conditions to achieve the highest net benefit.
Improvement of Soil Properties through Farmyard Manure and Lime for Barley Productivity in Acidic Hot Spot Areas of Ethiopia Addis, Zelalem; Amare, Tadele; Keribih, Betewlegn; Getaneh, Desaleign; Ambaw, Zimie; Awoke, Abrham; Tenaegn, Abere
Journal of Tropical Crop Science Vol. 12 No. 03 (2025): Journal of Tropical Crop Science
Publisher : Department of Agronomy and Horticulture, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jtcs.12.03.516-524

Abstract

The experiment was conducted to enhance barley productivity and improve soil properties in acid hotspots areas by applying farmyard manure and varying lime rates in the northwestern Amhara region, Ethiopia. The experiment comprised the combination of three levels of farmyard manure (0, 2, and 4 t.ha-1) and four levels of lime (0, 25, 50, and 100%) with one plot containing 92% N from urea and 69% P2O5 from TSP which was laid out in randomized complete block design with three replications. Data on soil physico-chemical properties and yield components of barley were collected and subjected to ANOVA. The individual application of farmyard manure and lime had a significant impact on the yield components of barley. Similarly, soil properties changed slightly under the treatments compared to the soil before planting. Sole application of 4 t.ha-1 farmyard manure and 100% lime ( 8.8 t.ha-1) gives the highest grain and above-ground biomass yield (1.7 and 3.5 t.ha-1) and (1.6 and 3.1 t.ha-1), respectively, than the control and the pilot treatments. Similarly, the application of sole 4 t.ha-1 scored the highest plant height (72.9 cm) compared to the control and pilot treatments. To achieve the highest net benefit within a short period, applying 4 t.ha-1 and 25% (2.2 t.ha-1) can be preferable for yield improvement in the study area and similar agro-ecological environments.