[PDF] Top 20 Directory UMM :Data Elmu:jurnal:S:Soil Biology And Chemistry:Vol32.Issue13.Nov2000:

... countries and contained ten symposia devoted to the activ- ities, ecology and applications of enzymes in soil and aqua- tic ...environments. Soil microbiologists, marine biochemists ... Lihat dokumen lengkap

... vegetables and crustaceans, studies dealing with estimations in soil are ...(1973) and Bollag et al. (1987) used purified soil extracts to determine the phenolase activity but only Duxbury ... Lihat dokumen lengkap

... autumn and early ...rains and AEEs increased sharply in both systems ...dried and were re- oxygenated during the dried ...flooding and drought could reduce the concentration of inhi- bitory ... Lihat dokumen lengkap

... wetland soil is supplemented with complex carbon, microbial metabolic resources are directed away from sulphur acquisition, to carbon ...(Spier and Ross ... Lihat dokumen lengkap

... 1995a) and humic acid– invertase (Maignan, 1983) complexes all had significantly higher activities when prepared in the presence than in the absence of Fe, Al and/or Cu ...The data in Table 1 ... Lihat dokumen lengkap

... adjustment and those still needing additional lime ...manure and alfalfa residues) increased the AlkP/AcdP ratios to approximately ...effective soil pH and liming ... Lihat dokumen lengkap

... mm and a mean annual temperature of 14 8 ...a soil (Typic haploxeralf ) with a sandy texture and low organic matter content (Dı´az-Marcote and Polo, ...of soil, compost and cow ... Lihat dokumen lengkap

... (Breland and Hansen, 1996; Nacro et ...(Billen and Fontigny, 1987), bacteria take up low molecular weight nitrogen compounds, ...bacteria and their repressive effect on the synthesis and ... Lihat dokumen lengkap

... muscorum and Tolypo- thrix tenuis, produce extracellular enzymes that decompose organic residues (Hussein et ...content and microbial activity of soil (Storni de Cano et ...of soil ... Lihat dokumen lengkap

... For all PMEase activity assays 0.3 ml of filtered ( , 0.22 mm) 1 mmol l 2 1 pNPP solution were added to 2.7 ml of water sample. Samples were incubated for 3 to 6 h at 25 8 C. The substrate concentration at the start of ... Lihat dokumen lengkap

... (0.021 mg N m 2 3 , Fig. 1c). The concentrations of total nitrogen (0.92–1.9 mg N m 2 3 ) and phosphorus (0.036– 0.059 mg P m 2 3 ) followed the changes in chlorophyll a concentration (Chl a), which had a maximum ... Lihat dokumen lengkap

... cellulose and xylan are among the first decomposed ...cellulose and xylan were not exhausted even though lignin degradation had started ...L.) and chestnut (Quercus prinus ... Lihat dokumen lengkap

... Nc and Nc/Nk (the last mentioned as a percentage), for each of the samples studied in this ...the soil at all three sites, especially the site later polluted with hydrocarbons; these results are not ... Lihat dokumen lengkap

... acid-mist application. On this basis, rather than assaying all soils at a fixed pH in a buffered solution, we performed non-buffered assays in order to make pH conditions resem- ble the observed pattern of soil pH ... Lihat dokumen lengkap

... biotic and abiotic properties of the ...of soil organic ...N, and available S in the surface 12 cm soil than the plantations that had mature 3-year old pineapple plants on them (Table ... Lihat dokumen lengkap

... urease–HA and 400 mM urea as a ...added and the acidity constants of the products of urea hydrolysis, using the procedure suggested by Blakeley et ... Lihat dokumen lengkap

... biological and biochemical parameters were measured in a range of intensively farmed soils in SE Spanish Mediterranean region, which had been abandoned ...(WSC) and carbohydrates, microbial biomass ... Lihat dokumen lengkap

... zinc-dependent, and has been used extensively as a biomarker for lead (Pb) exposure and ...Pb and other toxic ...700097 and [Pb] (Pearson correlation coefficient ˆ ... Lihat dokumen lengkap

... Deng and Tabatabai (1995) stated that metal ions might depress enzyme activity by reacting with the substrate, or the protein-active groups of enzymes, or enzyme–substrate ...the soil clay and kaolin ... Lihat dokumen lengkap

... (Vancura and Kunc, ...grassland soil consist almost exclusively of the vesicular±arbuscu- lar type (Frey et ...(Salmanowicsz and Nylund, ...reported and are in most cases hampered by an ... Lihat dokumen lengkap