Comparison of organic fertilizers on potatoes (Solanum tuberosum L.) — Ankazondrano, Amoron'i Mania
This study compares the effect of three organic fertilizers — poultry manure (T1), cattle manure (T2), and compost (T3) — on potato (Solanum tuberosum L. var. bandy akama) at Ankazondrano (Amoron'i Mania region). Conducted in a randomized block design on ferralitic soil with minimal irrigation (10 L/m²/week), the trial assessed tuber number, weight, and diameter per plant. Poultry manure (T1) proved the best-performing fertilizer, yielding 9.75 tubers per plant, an average weight of 22.16 g, an
15 Jun 2026
Valorization of coal waste on the petsaï (Brassica rapa var. chinensis) — Alaotra-Mangoro
This study evaluates the effect of wood charcoal residues, alone or combined with cattle manure, on the growth and yield of petsai (Brassica rapa var. chinensis) in the Alaotra-Mangoro region. Three treatments were compared in a randomized block design: T1 = cattle manure alone (10 t/ha), T2 = cattle manure + charcoal residues (5 t/ha), T3 = charcoal residues alone (5 t/ha), with irrigation at 30 L/m²/week. Treatment T2 (manure + charcoal residues) produced the highest aerial biomass (916 g/pla
15 Jun 2026