Effect of application of different levels of urea and ammonium sulphate at differernt proportions on soil pH, soil phosphorus and micro-nutrients availability in tea soil

Tennakoon, T.M.M.M.2020-09-082020-09-082009https://dl-susl.nsf.gov.lk/handle/1/31149Physical SciencesEffect of application of different levels of urea and ammonium sulphate at differernt proportions on soil pH, soil phosphorus and micro-nutrients availability in tea soilResearch ReportAP-PHY-012BSc04/AS/083