July 29, 2025 Thesis Open Access

NIGUSU DEBEBE

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{
  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "description": "<p>Potato (Solanum tuberosum L.) is one of major crops grown in Bule district, Southern Ethiopia. The soil in the area is poor in most of the available nutrients due to intensive soil erosion and soil acidity. Thus, soil and crop test-based fertilizer rate recommendations should be used in the area for sustainable crop production to enhance food production and household food security. Therefore, a field experiment was conducted during the main cropping season from June to October 2018 to evaluate the effect of lime and potassium fertilizer on yield and yield components of potato. The treatments were consisted of a combination of four level of lime (0, 2.1, 4.2 and 6.3t/ha) and four level of potassium (0, 75, 150 and 225kg/ha). The experiment was laid out in factorial randomized complete block design (RCBD) with three replications. An available improved potato variety called Gudenie was used for the experiment. Analysis of variance revealed that both lime and potassium had significant effect on days to flowering. Days to flowering was earlier (66 days) in plots applied with 4.2 t/ha lime. Days to maturity was delayed by 3 days with the application of 75kg K/ha. The main effect of Potassium had significant effect on plant height and leaf area index. The highest plant height (72.67cm) was recorded with the application of 225 kg K/ha. Higher leaf area index (3.87) was recorded at the application of 225kg K/ha. Lime and potassium had significant effect on large size tuber, medium size tuber, average tuber weight, marketable yield, and total tuber yield. The large size tuber (11.03 t/ha) and medium size tuber (23.4 t/ha) was recorded at the application of 225 and 150 kg K/ha, respectively as a result 177% and 71 % were recorded compared with control treatments. With application of 150 kg K/ha a higher marketable yield (39.99 t/ha) and tuber yield (44.03 t/ha) was recorded; which was increased by 75.4% and 65%, respectively. The application of 0 t lime +150kg K/ha and 2.1 t lime/ha potassium and lime rate gave the maximum economic benefit (Birr 213,819 / ha, and 206,005.5 /ha ) with marginal rate of return (2065 % and 1091 % ) respectively. Therefore, plots received 0 +150kg k/ha and 2.1tlime/ha +150kg K/ha rates recommended for potato production in the study area. However, as the results are limited to one season, further study should be done over more season and location to establish the scientific recommendation using different varieties so as to improve the production and productivity of potato in the study area.</p>", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "creator": [
    {
      "@type": "Person", 
      "name": "NIGUSU DEBEBE"
    }
  ], 
  "headline": "Response of Irish Potato (Solanum tuberosum L.) to Lime and Potassium Application rate in Acidic Soil at Bule wereda, SNNPR, ETHIOPIA.", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2025-07-29", 
  "url": "https://nadre.ethernet.edu.et/record/13720", 
  "version": "Version 1", 
  "keywords": [
    "Lime, Potassium, Potato and Soil acidity"
  ], 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.20372/nadre:13720", 
  "@id": "https://doi.org/10.20372/nadre:13720", 
  "@type": "ScholarlyArticle", 
  "name": "Response of Irish Potato (Solanum tuberosum L.) to Lime and Potassium Application rate in Acidic Soil at Bule wereda, SNNPR, ETHIOPIA."
}