Onwuchekwa-Henry, B. C., MICHAEL OKPARA UNIVERSITY OF AGRICULTURE UMUDIKE, Nigeria

• Journal of Sustainable Agriculture and the Environment (JSAE) Vol 16 No 2 (2015): JOURNAL OF SUSTAINABLE AGRICULTURE AND THE ENVIRONMENT - Articles/Crop & Soil Sciences
  Effects of Poultry Manure and Cropping Systems on Chemical Properties and Productivity of Ultisol in Umudike, Southeastern Nigeria
  Abstract  PDF