Effect of combined application of fortified poultry manure with ash and NPK fertilizer on some soil properties in Sokoto, Nigeria

Abstract

A field trial was conducted to determine the effect of combined application of fortified poultry manure with ash and NPK fertilizer on some soil properties in Sokoto, during 2018/2019 dry season in Chimola (Gwadabawa LGA) and Wurno (Wurno LGA). The treatments consisted of three (3) levels of fortified poultry manure with ash (1:3 ratio) at 5, 10 and 15t ha^-1, and three (3) levels of NPK at 30, 45 and 60kg ha^-1 which were combined and laid-out in a randomized complete block design (RCBD) replicated three (3) times. Sakanal onion variety was used as a test crop.Data on particle size, pH, organic carbon, total nitrogen, available phosphorus, CEC and exchangeable bases were collected on and after hrvest. The data generated were subjected to analysis of variance (ANOVA) procedure for RCBD using SPSS version 23.0. The results revealed that fortified poultry manure with ash and NPK fertilizer significantly (P<0.05) affected chemical properties of the soils such as organic carbon, organic matter, available phosphorus, exchangeable calcium, magnesium, electrical conductivity and cation exchange capacity in Chimola and Wurno, respectively. Exchangeable potassium was significantly (P<0.05) affected by the application of fortified poultry manure with ash and NPK fertilizer in Chimola location. The results of the study revealed that application of 15 tons fortified poultry manure with ash and 60 kg/ha NPK fertilizer significantly improved the physical and chemical properties of the soils in the study area.