[PDF] Top 20 Directory UMM :Data Elmu:jurnal:S:Soil Biology And Chemistry:Vol32.Issue2.2000:

... health and the en- vironment, alternative methods to control pests and diseases are being sought (Akhtar, ...Muller and Gooch (1982), Akhtar and Alam (1993b) and Akhtar and ... Lihat dokumen lengkap

... columns and ®eld cores were compared, only horizons from the top 20 cm of the columns were considered in order to be consistent with the 20 cm depth of the ...that soil from laboratory columns gassed with ... Lihat dokumen lengkap

... ÿ2 s ÿ1 ; temperature 18/148C (day/ night); relative humidity 65/70% (day/night) and wind speed ...m s ÿ1 ...experiment, soil water was kept at about 14% w/w (60±70% of ®eld capacity) by ... Lihat dokumen lengkap

... (Anderson and Domsch, ...1 and 3% of total soil organic C (Jen- kinson and Ladd, 1981; Anderson and Domsch, ...(0.40±0.43%) and no signi®cant di€erence was detected between the ... Lihat dokumen lengkap

... posed. However, improved N nutrition can derive from improved exploitation of soil N by more vigor- ous root growth due to amelioration of P-de®ciency. . Number or mass of nodules or acetylene reduction ac- ... Lihat dokumen lengkap

... experiments, soil was placed in 120 ml specimen cups. In Experiment 1, soil was collected immediately after the snow had receded in ...2 and 3, soil was collected in the ...38C and a ... Lihat dokumen lengkap

... root-free soil was placed in a 1-l Mason 2 jar and adjusted to and main- tained at 240 g water kg ÿ1 content by mass with de- ionized ...temperature) and 408C (water bath) for 48 ... Lihat dokumen lengkap

... Ambient soil inorganic N levels in the ®eld exper- iment were similar to those of the low soil N treatment in the laboratory incubation, with ...6.9 and 10.4 mg N g ÿ1 soil observed for the ... Lihat dokumen lengkap

... production and carbon storage in arctic ecosystems, but there are few studies coupling processes in the decomposer and microbial food web and the implications these processes have on the control of ... Lihat dokumen lengkap

... urea and the remaining served as ...¯owering and grain ®ll- ing stage at the rates of 40, 30 and 30 kg N ha ÿ1 , re- ...with and three without urea) were sown to rice while the other six ... Lihat dokumen lengkap

... high soil moisture contents are favourable to denitri®cation, and the variability of denitri®cation rate appeared to decrease because of a more even distribution of anaerobic sites in the soil after ... Lihat dokumen lengkap

... rate and ¯uorescence under UV radi- ...Rifampicin and kanamycin resistant (Rif r Kan r ) mutants of isolate 12 were generated by transposon mutagenesis (Anderson et ...mid and rifampicin resistant ... Lihat dokumen lengkap

... climate and wet Mediterranean climate (in the more general Holdridge life zone chart: the transition between cool temperate and warm temperate) is probably a key situ- ation, with an expected net ... Lihat dokumen lengkap

... in soil columns containing earthworm burrows was dependent on the presence or absence of active earthworms during interstorm ...atrazine and metabolites in leachate was approximately 2-fold greater with, ... Lihat dokumen lengkap

... maximum soil organic C was 37% greater under grazed tall fescue than under hayed hybrid ...store soil organic C than hybrid bermuda- grass, because of di€erences in plant architecture between grass species, ... Lihat dokumen lengkap

... communities and decay processes was investigated through a litter bag ...removed and quanti®ed for total length and percent ectomycorrhizal colonization by ...rates and N and P litter ... Lihat dokumen lengkap

... CT) and crop rotation (soybean, S/wheat, W/maize, M; S/W; M/W) ...yr and our objective was to investigate the e€ects of tillage and cropping systems on the bradyrhizobia ...system ... Lihat dokumen lengkap

... uum and the residue dissolved in 3 ml of the HPLC ...C-atrazine and 14 C- metabolites were analyzed using a Waters HPLC instrument (600E Multisolvent Delivery System, 717 Autosampler and a Novapak ... Lihat dokumen lengkap

... (McClaugherty and Berg, 1987; Aber et al., 1990; Magill and Aber, ...concentrations and treated lit- ter was signi®cantly lower than control litter in all but AB nitrate-treated samples ...These ... Lihat dokumen lengkap

... in soil leachate showed the biosensor re- sponse might be biased by the presence of soil par- ...remove soil particles, resulted in an underestimation of bioavailable mercury ...water and ... Lihat dokumen lengkap