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Direct Research Journals
Direct Research Journal of Agriculture and Food Science:Vol.6 (1), pp. 33-39, January 2018
ISSN 2354-4147

Influence of the application of biochar on the growth of groundnut (Arachis hypogaea L.) grown on lead contaminated soil
Article Number: DRJA16911620
DOI: https://doi.org/10.26765/DRJAFS.2017.1620

Original Research Article


Alkali, B1., Yusif, S. A.,1 Umar, B1. and Haruna, S2.


1Department of Soil Science and Agricultural Engineering, Faculty of Agriculture, Usmanu Danfodiyo University, Sokoto, P.M.B 2346, Nigeria.

2Department of Forestry, Audu Bako College of Agriculture Thomas, Dambatta, P.M.B 3159, Kano State, Nigeria.

*Corresponding Author E-mail: yusif.sunusi@udusok.edu.ng


date Received: November 15, 2017     date Accepted: December 10, 2017     date Published: December 31, 2017

Abstract

This experiment was conducted at the screen house of Biological Science, Usmanu Danfodiyo University, Sokoto, Nigeria, to determine the influence of the application of biochar on the growth of groundnut (Arachis hypogaea L.) grown on lead contaminated soil. SAMNUT-24 was used as the test crop for this research. Lead (Pb) was inoculated at the rate of 515 mgkg-1 in the buckets containing 5 kg of top soil (thoroughly mixed) a week prior to biochar application. The biochar was applied two weeks before planting at the rates of 0, 2.5, 5, 7.5, 10 and 12.5 t/ha. The experiment was laid out in a completely randomized design and replicated three times. Data were collected on growth parameters (number of leaves and plant height), nodulation (effective and non-effective nodules) and yield (number of pods and number of kernels). Data collected were subjected to Analysis of Variance (ANOVA) and means were separated using Duncan’s Multiple Range Test at 5% level of significance. The results showed that 12.5 and 10 t/ha of biochar significantly (p<0.05) increased number of leaves, plant height, shoot dry weight and number of effective nodules. 12.5 and 10 t/ha of biochar rates gave the best results. It is therefore recommended that these rates should be tried in field experiment to validate the results obtained from this study. Further studies should also be conducted in order to analyze and determine the shoot N, P, K, and Na as well as Lead concentration in shoot, root and yield.


Keywords: Biochar application, Lead inoculation, contaminated soil, agronomic parameters.