September 14, 2015 Journal article Open Access

Biruk Masrie; Nigussie Dechassa; Tamado Tana; Yibekal Alemayehu; Bekele Abebie

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        <foaf:name>Biruk Masrie</foaf:name>
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        <foaf:name>Nigussie Dechassa</foaf:name>
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        <foaf:name>Tamado Tana</foaf:name>
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        <foaf:name>Yibekal Alemayehu</foaf:name>
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    <dct:title>The Effects of Combined Application of Cattle Manure and NP Fertilizers on Yield and Nutrient Uptake of Potato in North-Eastern Ethiopia</dct:title>
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    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#gYear">2015</dct:issued>
    <dct:issued rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2015-09-14</dct:issued>
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    <dct:description>&lt;p&gt;Potato (Solanum tuberosum L.) is a short season crop that thrives best under&lt;br&gt; sufficient nutrient supply. However, in Ethiopia the yield of potato is quite low&lt;br&gt; as it is produced with little or inappropriate rates of fertilizer application.&lt;br&gt; Therefore, a field experiment was conducted for two seasons (2012 and 2013) at&lt;br&gt; Kobo substation of Sirinka Agricultural Research Centre to elucidate the&lt;br&gt; combined effects of cattle manure (CM) and NP fertilizers on growth, yield&lt;br&gt; components, yield and nutrient uptake of the crop. The treatments consisted of&lt;br&gt; three rates each of CM (0, 15 and 30 t ha-1), nitrogen (0, 60 and 120 kg N ha-1) and&lt;br&gt; phosphorus (0, 46 and 92 kg P2O5 ha-1), combined factorially and laid out in&lt;br&gt; randomized complete block design with three replications. Growth parameters&lt;br&gt; (growth rate, and leaf area), average tuber weight and marketable and total tuber&lt;br&gt; yield of potato were significantly (P &amp;le; 0.05) influenced by the interaction effects&lt;br&gt; of chemical and organic fertilizers. Uptake of N and P were higher with&lt;br&gt; treatments in which 30 t ha-1 CM was applied combined with 120 kg N and 92 kg&lt;br&gt; P2O5 ha-1 as compared to the control treatment. Harvest index, total tuber yield,&lt;br&gt; N uptake and P uptake were significantly increased by 134%, 257%, 2446% and&lt;br&gt; 1186%, respectively, over the control treatment in response to the combined&lt;br&gt; application of 120 kg N, 92 kg P2O5 ha-1 and 30 t ha-1 CM. In conclusion, the&lt;br&gt; results revealed that integrated application of chemical and organic fertilizers&lt;br&gt; could be the best strategy to restore highly depleted soils and to enhance&lt;br&gt; economical production of potato in Kobo district and similar agroecologies.&lt;/p&gt;</dct:description>
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