The management of plant cover on mine wastes in Zimbabwe: fertilizer trials on slimes dams

Abstract

Factors limiting plant growth on mining wastes containing total values of 1 980 ppm arsenic, 1 180 ppm copper and 2 130 ppm nickel were investigated. Responses to 80 kg nitrogen/ha were significant (p = 0,01) on all wastes and mean increases in herbage dry matter were 5 410, 2 462 and 2 690 kg/ha respectively.

Keywords: management|plant cover|mine wastes|fertilisers|slime dams|rehabilitations|limiting factors|chemicals|arsenic|copper|nickel|responses|herbage yields|nitrogen|potassium|slimes|plants