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Uum Umiyati
Departemen Agronomi, Fakultas Pertanian, Universitas Padjadjaran
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Journal : Journal of Tropical Soils

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Allelopathic Inhibition of Nitrifying Bacteria by Legumes Uum Umiyati
JOURNAL OF TROPICAL SOILS Vol 22, No 2: May 2017
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2017.v22i2.125-130

Abstract

The study aimed at understanding the competitive ability of legumes Vigna radiata L. and Mucuna pruriens with weeds and their effects on the activity of nitrifying bacteria in soils and the contents of organic-N in legumes and weeds. The experiment was arranged in a randomized block design with three factors and four replications. The first factor was soil order, i.e. Inceptisol and Vertisol; the second factor was types of legumes, i.e. Vigna radiata L. cultivar Sriti and Mucuna pruriens; and the third factor was weed management, i.e. with weed management and without weed management. The results showed that Vigna radiata L. and Mucuna pruriens indirectly influence the supply of available nitrogen in soils that can be taken up by the coexisted plants or weeds via the inhibition of the growth of Nitrosomonas and Nitrobacter in soils. As a results, the organic-N content in weeds decreases, which is in contrast to the increasing amount of organic-N in Vigna radiata L. and Mucuna pruriens. The results indicated that Vigna radiata L. and Mucuna pruriens are considered as allelophatic legumes, resulting in low organic-N content in weeds.  Keywords: Allelopathic, Mucuna pruriens, Nitrosomonas, Nitrobacter, Vigna radiata 
Co-Authors Apong Sandrawati Citra Berta W Gultom Danny Hajayogaswara Deden Deden Dedi Widayat Denny Kurniadie Denny Kurniadie Denny Kurniadie Diyan Herdiyantoro Dukat Dukat Evi Entang Fatimah Farida Farida Ida Marina M. Syamsul Maarif Maharani Maharani Mieke Rochimi Setiawati Mira Ariyanti Nurdetik Salarti Pujawati Suryatmana Reza Yudha Fadillah Sarah Shabirah Sri Ayu Andayani Umar Dani Vivi Erfhia Rachmawati Yayan Sumekar Yuyun Yuwariah