MBONU, O. A. and ARIFALO, S. (2006). Growth and Yield of Amaranthus (Amaranthus cruentus L.) as Affected by Organic Soil Ammendments. Nig. J. of Hort Sci. vol.11:42-46.
Abstract:
The growth and yield of Amaranthus cruentus L. as affected by different combinations of organic materials were analyzed. The treatments which consisted of 5tons/ha of poultry manure, 5tons/ha of wood ash, mixture of 1.7 and 3.3 tons/ha of wood ash and poultry manure respectively, mixture of 3.3 and 1. 7tonsiiza of wood ash and poultry manure respectively and a control of no manure, were laid out in a completely randomized block design, replicated three times. Results showed that plant heights ranged from 28.7 to 34.2cm for all treatments against a plant height of 25.2cm for the control The number of leaves was in the order 16, 17, 17, and 18 for plots treated to 5tons/ha of wood ash, the control, mixture of 3. 3tons/ha of wood ash and 1.7tonsñia of poultry nanure,5tons/ha of poultry manure and mixture of 1.7tons/ha of wood ash and 3.33tons/ha of poultry manure respectively. The mixture of 1.7tons/ha of wood ash and3.33tonsiha of poultry manure gave the highest leaf area , 1.71.50cm2, followed by that of the mixture of 3.3tons4ia of wood ash and 1. 7tons/ha of poultry manure of 69.70cm2 as against 54.94cm2 for the control. However in terms of fresh and dry matter yields, the 5tons/ha of wood ash treatment gave the highest weight of 2.Stonstha followed by mixture of 3.3tonsiha of wood ash and 1. 7tons/ha of poultry manure and the mixture of 1. 7tons/ha of wood ash and 3.33tons/ha of poultry manure with 2.01 and 1.83 tons/ha respectively; which were not significantly different from each other Results also showed ‘hat the fresh leaf weight correlated with leaf area with r (correlation coefficient) values ranging between 0.41 and 0.86.
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