Evaluation of on Farm Soil Chemical Analysis Using Soil Testing Kit

ABSTRACT
Farmers commonly applying fertilizers without assessing the soil inventory.which leads toadverse effects on crop production. Additionally,the scarcity of affordable soil laboratoryfacilities poses a challenge for many resource-poor farmers in the Savannah ccology.Inrecent times, the Nigerian Institute of Soil Science(NISS) has been advocating for widespreadsoil testing. distributing this valuable resource to extension agents and some farmers.Thisprojec aims to assess the effectiveness of on-farm soil chemical analysis through theutilization of soil testing kits. The study involves collection of soil samples using simplerandom sampling technique at a depth of 0-15cm,from Usmanu Danfodiyo University DryLand Teaching and Research Farm Sokoto. The research compares traditional laboratorymethods with on-farm soil testing kits,considering the cost implications for local farmers andthe potential of these kits to offer immediate, site-specific insights. The study delves into theefficiency of laboratory-based and on-farm soil analysis. Comparative resultsrevealanalytically similar pH and percentage nitrogen but disparities in available phosphorous andexchangeable potassium. The research underscores the potential of on-farm soil testing kits asa practical alternative to traditional laboratory procedures in evaluating soil properties. Whilethe findings suggest a moderate level of reliability, it is crucial not to solely depend on thesckits for comprehensive assessments. Consequently, it is advisable, when feasible, for farmersto align favorable time conditions with available laboratory resources to conduct thoroughcalibration checks. This precaution ensures the accuracy of colormetry methods acrossdiverse soil types and conditions,ultimately enhancing the efficacy of on-farm soil chemicalanalysis. Such an approach can significantly contribute to well-informed fertilizer applicationdecisions, particularly benefiting resource-poor farmers in the Savannah ccology.