Fig. 3From: Di-ammonium phosphate (DAP) and plant density improve grain yield, nodulation capacity, and profitability of peas (Pisum sativum L.) on ferralsols in eastern D.R. CongoGrain yield variations under effects of DAP dose (a), plant density (b), interaction DAP dose × variety (c), and across seasons and years (d) in Miti, Kabare, eastern DRC. E1, E2, E3: plant densities corresponding to: 100,000, 166,666 and 250,000 plants ha−1, respectively, ADEI and C.R are variety names, A and B refer to the long and short cropping seasons in the study area, respectivelyBack to article page