Anda belum login :: 23 Nov 2024 09:25 WIB
Detail
Artikel Microbial Biomass In A Soil Amended With Different Types Of Organic Wastes  
Oleh: Jedidi, Naceur ; Hassen, Abdennaceur ; Cleemput, Oswald van ; M’Hiri, Ali
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Waste Management & Research vol. 22 no. 2 (Apr. 2004), page 93-99.
Topik: Soil; organic wastes; microbial biomass; fumigationextraction; wmr 613–6
Fulltext: 93.pdf (750.46KB)
Isi artikelApplication of different types of organic wastes may have a marked effect on soil microbial biomass and its activity. The objective of this study was to quantify the amount of microbial biomass in a loamy-clayey soil, amended with different types of organic waste residues (composts of municipal solid waste of different ages, sewage sludge and farmyard manure) and incubated for 8 weeks at 25C and two-thirds of field capacity, using the fumigation–extraction method. Both microbial biomass-C and -N (BC and BN, respectively) appeared to be dependent on the type of organic waste residues, on their degree of stability, and on their chemical characteristics. In general, organic wastes increased the microbial biomass-C content in the soil and the microbial BC was positively correlated with the organic C content, the C/N, neutral detergent fibre/N (NDF/N) and acid detergent fibre/N (ADF/N) ratios. The microbial biomass content decreased according to the period of incubation, especially when the compost used was immature. The microbial biomass-N was positively correlated with the total N and percentage of hemicellulose. The microbial biomass-C was linearly related with the microbial biomass-N and the ratio BC/BN was exponentially related with the BC.
Opini AndaKlik untuk menuliskan opini Anda tentang koleksi ini!

Kembali
design
 
Process time: 0.015625 second(s)