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The study was carried out on the impact assessment of the form and nature of the different nitrogen sources used in culture on growth and nodulation of pigeon pea (Cajanus cajan (L.) Millsp) during 3 months of observation on sandy soil of Mount Amba (at the University of Kinshasa in the Democratic Republic of Congo). Height and collar diameter growth, underground and total biomass dry weight, number and dry pea nodules and nodulation index have been evaluated at 4, 6, 8, 10 and 12 weeks of growth to assess the response of the legume to mineral nitrogen and organic nitrogen from chickens manure and pig feces. After observations, it appears that all the treatments soil showed different effects on growth and nodulation of pigeon pea. Therefore, only the soil received 1 kg of pig feces stimulated (p ≤ 0.05) the development of pigeon pea which resulted in good growth (nodulation 116.8 nodules and nodulation index of 5.0) and biomass production (25.3 gr per plant) while the addition of chicken manure, whatever the dose, reduced them.

american journal of plant sciences

Effect of the Form and Nature of Nitrogen on Growth and Nodulation of Pigeon Pea (&amp;lt;i&amp;gt;Cajanus cajan&amp;lt;/i&amp;gt; (L.) Millsp) on Sandy Soil of Mont-Amba, in Democratic Republic of Congo