Response from Glycine max (L.) Merrill) - TSHIBANGU BAKABABENESHA, Emmanuel;LUMPUNGU KABAMBA, Christophe
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The soil used for our investigations is an extremely acidic ferralsol, to which we applied organic matter based on Tithonia diversifolia, proposed as a possible solution for restoring the fertility of this type of soil. The general aim was to evaluate its impact on soybean crops sown in pots on two soils, from 0-20 cm and 20-40 cm in a bifactorial experimental set-up. Three doses, equivalent to 0 kg (D0), 3 kg (D1) and 6 kg MO.m-2 (D2) were tested. The 3 kg MO.m-2 treatment was the best in all cases, particularly in terms of yield, which was equivalent to 3.72 Mg.ha-1 on the surface soil and…mehr

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Produktbeschreibung
The soil used for our investigations is an extremely acidic ferralsol, to which we applied organic matter based on Tithonia diversifolia, proposed as a possible solution for restoring the fertility of this type of soil. The general aim was to evaluate its impact on soybean crops sown in pots on two soils, from 0-20 cm and 20-40 cm in a bifactorial experimental set-up. Three doses, equivalent to 0 kg (D0), 3 kg (D1) and 6 kg MO.m-2 (D2) were tested. The 3 kg MO.m-2 treatment was the best in all cases, particularly in terms of yield, which was equivalent to 3.72 Mg.ha-1 on the surface soil and 3.48 Mg.ha-1 on the deep soil. The 0 kg MO.m-2 treatment, which had borne only a few nodules (8), had only given a yield of 0.486 Mg.ha-1. Proof of Rhizobium inactivity in this type of soil. With the 6 kg MO.m-2 dose, a drop in yield was observed (1.642 Mg.ha-1 on average), probably due to excess nitrogen. Nevertheless, the results obtained were comparable for the two soil levels studied (0-20cm and 20-40cm).
Autorenporträt
Doktorand und Masterstudent an der Universität Kinshasa, Fachbereich Bodenkunde. Forschungsgebiet: Suche nach dem wirksamsten Mittel zur Lösung des Problems der Degradation tropischer Böden; Nachweis der Wirksamkeit organischer Stoffe als Düngemittel und ihrer Fähigkeit, den im Boden vorhandenen Phosphor zu mobilisieren; Aufwertung von Rohphosphat.