Title: The response of yam (<i>Dioscorea rotundata</i>) to fertilizer application in Northern Ghana
Abstract: Summary Field trials were carried out for three years in the savanna zone of northern Ghana to determine the fertilizer requirements of yam ( Dioscorea rotundata ). Under the conditions of the experiment, K was not important in yam fertilization. Release from the exchangeable reserves was adequate in meeting the crop demand. A small positive response to P applied at low levels (33·6 kg/ha) was observed and averaged only 5·6% increase in yield. N was the most important nutrient element and its application increased yields highly significantly. On the average, application of 33·6 kg/ha gave an increase of 13·5% and 67·2 kg/ha gave a 22·1% increase in yield. More N did not further increase yield.
Publication Year: 1973
Publication Date: 1973-04-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 9
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