Dermiyati, - and Wulan, tety Rahmi and Arif, Mas Achmad Syamsul and Nugroho, Sutopo Ghani (2006) Perubahan Aktivitas Mikroba Tanah Akibat Pemberian Herbisida Diuron pada Tanah Ultisol yang Diberi Pupuk Berkelanjutan. Journal of Tropical Soils, 12 (1). pp. 55-60. ISSN 0852-257X

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Soil microbial activities indicated by soil respiration and soil microbial biomass carbon (C-mik soil) in Ultisols soil as affecting by application of diuron herbicide and long-term fertilizers applications were studied. A factorial experiment in a Randomized Block Design with two replications was established. The first factor was dosages of diuron herbicide which are 0 mg kg-1 (without diuron) and 10 mg kg-1 (with diuron). The second factor was fertilizers applications which are without fertilizer (control), 100% chicken manures (dosage 20 ton ha-1), 100% green manures (leaves of Glyricidium sp., dosage 20 ton ha-1), 100% chemical fertilizers (300 kg Urea ha-1, 200 kg SP-36 ha-1, 100 kg KCl ha-1), combination of 50% chicken manures and 50% chemical fertilizers, and combination of 50% green manures and 50% chemical fertilizers. After treatments, soils were incubated in a dark room at 25oC. Soil respiration and C-mik soil were measured at 0, 3, 7, 14, and 28 days after herbicide application (AHA). The results showed that long-term fertilizers applications increased soil respiration and C-mik soil. A diuron herbicide application did not increase soil respiration and C-mik soil, except at 28 days AHA, soil without herbicide increased C-mik soil. There was not interaction between herbicide and long-term fertilizers applications in relation to soil respiration and C-mik soil. It was recommended to use diuron herbicide wisely as it affecting soil microbial activities.

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Pertanian (FP) > Prodi Ilmu Tanah
Depositing User: DERMIYATI
Date Deposited: 11 Nov 2016 01:08
Last Modified: 11 Nov 2016 01:08

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