Influence of plant density on variability of soil fertility and nutrient budgets in low input East African highland banana (Musa spp. AAA-EA) cropping systems - Ndabamenye, T.; Vanlauwe, Bernard; Asten, Piet J.A. van; Blomme, Guy; Swennen, Rony L.; Uzayisenga, Bellancile; Annandale, J.G.; Barnard, R.O. (Springer, 2013)