K E Law-Ogbomo, A U Osaigbovo


Higher crop yield of jute mallow is desirable due to the increasing pressure to feed the ever increasing population from a decreased available agricultural land with low fertility stats arising from various environment factors such as erosion, desertification and intensive cultivation with poor soil management. The study was conducted in 2015 and 2016 at the Teaching and Research Farm of the Faculty of Agriculture, University of Benin, Benin City, Nigeria. The objective of the study was to evaluate the growth and yield performance of jute mallow (Corchorus olitorius L.) in response to nitrogen levels of cured poultry manure in an ultisol environment. The experiment was laid out in a randomized complete block design involving five treatments with three replications. The treatment is cured poultry manure at rates of 0,30,60,90 and 120 kg Nha-1.Data were collected on plant height, number of branches and leaves, leaf area index, herbage yield, dry weight and relative agronomic efficacy. The results showed that all variables measured were significantly (P <0.5) affected by the different nutrient levels. The tallest plants, largest number of leaves, branches and LAI were observed in plots treated with 120 kg N ha-1. The lowest values of all growth characters measured were recorded in untreated control plants. The highest yield value (herbage yield (16.48 and 16.22 t ha-1) and relative agronomy efficacy(204 and 168 %)) were obtained in plots treated with 90 and 120 kg N ha-1 and compared to the least values observed in the in the untreated control plants. Herbage yield had significant positive correlation with number of branches, number of leaves, and LAI with coefficients of 0.659, 0.750, and 0.825 respectively. Both the dry matter yield and relative agronomic efficacy also had significant positive correlation with number of branches, number of leaves and LAI. The results indicated that cured poultry performed better when used at the application of 90 kg N ha-1 and is suggested for jute mallow production in an ultisols environment.


jute mallow, N levels, poultry manure, ultisols.

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