TITLE:
Effect of the Form and Nature of Nitrogen on Growth and Nodulation of Pigeon Pea (Cajanus cajan (L.) Millsp) on Sandy Soil of Mont-Amba, in Democratic Republic of Congo
AUTHORS:
Georges Mupala Muyayabantu, Nicolas Mutamba Mulaja Kabwe, Jean Michel Tshibamba Mutombo, Kadiata Bakach Dikand
KEYWORDS:
Mineral and Organic Nitrogen, Growth, Nodulation, Pigeon Pe
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.10 No.8,
August
29,
2019
ABSTRACT: 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.