Working Document Series Open Access Productivity of Solanum potato varieties and their yield responses to nitrogen fertilizer application rates in Eastern Rwanda C. Karemangingo Potatoes (Solanum tuberosum L.) is an important crop widely grown in cool and high moist conditions of Rwanda. This study explored the productivity of different potatoes varieties under increasing nitrogen fertilizer application rates in d… RUF-37017 2016 CC BY 4.0 18 Sep 2017