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Growth Performance of Tomato Varieties as Influenced by Rates and Time of Poultry Manure Application in the Savanna Zone of Nigeria
Abstract
A field experiment was conducted at the Teaching and Research Farm, Federal University Dutsin-Ma, Badole and Danja in the Sudan and Northern Guinea Savanna zones of Nigeria, respectively, to assess the influence of rates and time of poultry manure application on the growth performance of two tomato varieties. The treatments made of factorial combinations of two tomato varieties (UTC GRAPTOR and SUDANA), four rates of poultry manure (0, 5, 10, and 15t ha-1), and three times of poultry manure applications (two weeks before transplanting, at transplanting, and two weeks after transplanting). The design for the experiment was a randomized complete block design (RCBD) and the experiment was replicated three times. The varietal effect was significant (P<0.05) on growth parameters measured where UTC GRAPTOR variety produced significantly (P<0.05) higher growth performance than SUDANA variety. Application of poultry manure significantly (P<0.05) increased growth parameters, such as number of leaves, branches, plant height, stem girth, dry weight, and leaf area index, where application of 15t ha-1 of poultry manure produced significantly (P<0.05) higher values of the growth parameters than other rates of poultry manure. Time of poultry manure application significantly (P<0.05) increased growth parameters measured where applying poultry manure at two weeks before transplanting gave significantly (P<0.05) higher values of these measured parameters than other times of poultry manure application. Conclusively, the application of 15t ha-1 of poultry manure at two weeks before transplanting on soil grown with UTC GRAPTOR variety of tomato was the most suitable for the study areas.
