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University of Guelph (1995)

Inoculation of selected agroforestry tree species with rhizobium and subsequent crop and soil Nitrogen responses

Kimiti, Jacinta M.

Titre : Inoculation of selected agroforestry tree species with rhizobium and subsequent crop and soil Nitrogen responses

Auteur : Kimiti, Jacinta M. 

Université de soutenance : University of Guelph

Grade : Master of Science, 1995

Résumé
This study was conducted to test the effect of rhizobium inoculation on 4 tree legumes : Leucaena leucocephala, Calliandra calothyrsus, Sesbania sesban (commonly used in intercropping systems in Kenya) and Robinia pseudoacacia (a temperate tree legume). Early growth patterns, intercropping interactions, decomposition and mulching characteristics were investigated with respect to soil and plant nitrogen (n) nutrition. It was found that rhizobium inoculation increased : shoot n concentration in all species (72%, 86%, 68% and 34% respectively), shoot total n content in L. Lucocephala and C. Calothyrsus, nodule number and nodule weight in C. Calothyrsus and nitrate in soils in which R..Pseudoacacia was grown. In barley intercropped with C. Calothyrsus and S. Sesban, barley ear nitrogen concentration, total n content, grain yield, n concentration and n content were also increased. Inoculation also increased decomposition of L. Lucocephala and R..Pseudoacacia leaves and barley ear N concentration and N content in soil mulched with mixed leaves of L.leucocephala.

Sujets : Agroforestry/Nitrogen/Soils/Leucaena leucocephala/Calliandra calothyrsus/Sesbania sesban/Robinia pseudoacacia/Plant growth/Rhizobium/ ;

Présentation

Page publiée le 20 octobre 2016, mise à jour le 1er février 2018