Received:February 04, 2020;   Published: February 18, 2020

DOI: 10.32474/CIACR.2020.08.000283

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Abstract

An experiment was conducted at Michael Okpara University of Agriculture, Umudike soil science Laboratory to study the effects of poultry manure and wood ash on soil exchangeable potassium and soil pH. The aim was to compare the effects of poultry manure and wood ash on soil pH and the rate of potassium- release with time, from an acid ultisol in Umudike, Abia State. The organic amendments were poultry manure and wood ash which were applied at the rates of 0, 5 and 10 tons per hectare. The treatments were replicated three times in a completely randomized design (CRD). During the experiment, soil samples were collected from the incubated samples and analyzed for pH and exchangeable potassium at day 1, day 14, day 28 and day 42. The results showed that poultry manure and wood ash had good effects by improving the soil pH and exchangeable potassium. 10 tons/ha rate of application of both gave highest values of soil exchangeable potassium and pH at one time or the other throughout the incubation period. 10 tons/ha of poultry manure and wood ash were therefore recommended.

Abstract| Introduction| Objective of the Study| Materials and Methods| Effects of Poultry Manure and Wood ash on the Soil Exchangeable Potassium and PH in the Incubation Experiment| Conclusion| References|