Madagascar: Debate on Environmental Impact of Ammonium Sulphate
The distribution of improved ammonium sulphate fertilizers in Madagascar, intended to enhance agricultural yields and achieve food self-sufficiency, has sparked a debate regarding its environmental impact. While the government aimed to assure the public, concerns have been raised regarding the marketing of these fertilizers.
In February 2023, President Andry Rajoelina of Madagascar announced the official launch of the Improved Ammonium Sulfate Fertilizer Distribution Program. The fertilizer, derived from the nickel and cobalt production process at the Ambatovy mine, was provided to the Presidency by a mining corporation. This distribution of agricultural inputs to farmers was part of the President’s “Velirano” promises, aimed at attaining food self-sufficiency for the country.
However, the low-cost marketing of this fertilizer has raised significant ecological concerns. While agronomists agree that ammonium sulfate can boost yields, experts fear that its use on the island may lead to excessive soil acidification, rendering it infertile for cultivation. An agronomist, speaking anonymously, highlighted the danger of this situation, stressing that restoring the soil would require years of effort. The challenge is further compounded by the difficulty of effectively controlling and monitoring the distribution of these products throughout Madagascar.
The agronomist emphasized the need for caution regarding phytosanitary products, as they can travel, be exchanged, and give rise to parallel networks. Moreover, the attractiveness of these products due to their affordable price adds to the desire for their usage.
