[PDF] Top 20 Directory UMM :Data Elmu:jurnal:A:Agricultural Water Management:Vol44.Issue1-3.Apr2000:

... is a wide range of validity needed to accept leaching modelling as a versatile and credible risk assessment ...such a study in Europe, and the outcome of it is presented in this special ...and ... Lihat dokumen lengkap

... Vredepeel data. Hosang and Klein tested PELMO against the Tor Mancina data (Francaviglia and Capri, 2000), ErzgraÈber, Resseler, SchaÈfer and Klein used the Vredepeel data set (Boesten and van der ... Lihat dokumen lengkap

... drainage water did not vary much with flow rate of water during the event and only declined gradually with ...in a specific attempt to simulate this independence from flow rate. Such a high ... Lihat dokumen lengkap

... calibrated water flow parameters). This resulted in a good fit of the total amounts of ethoprophos in the soil profile after 278 and 474 ...about a week (starting from day 250) the desorption from ... Lihat dokumen lengkap

... soil water contents of the order of 0.06 m 3 m ÿ3 , which were only slightly larger than the values obtained when fitting to actual measured ...real data are available, it is recommended that these ... Lihat dokumen lengkap

... field data is ...As a result, currently used models within the EU registration process have a vague validation status (Boesten et ...where a chemical is exposed to all of the dynamic processes ... Lihat dokumen lengkap

... using a data set describing results from field and laboratory experiments performed in the Netherlands (Boesten and Van der Pas, ...of a European modelling validation exercise supported by the COST ... Lihat dokumen lengkap

... NJ used another site than Field Plot VIII for estimation and calibration of hydraulic parameters for MACRO. This may explain why the calculation of soil moisture 1993/ 1994 with the calibrated model is worse compared to ... Lihat dokumen lengkap

... against a data-set of high quality was of interest so that the ability of the model to forecast the behaviour of pesticide and the confidence of the simulations could be ...same data-set, and this ... Lihat dokumen lengkap

... had a large effect resulting in considerable variability in the parameters for both pesticides (especially for ...regression). A limited part of the variability was not the result from modeller subjectivity ... Lihat dokumen lengkap

... paper, a validation study is reported of the mechanistic±deterministic leaching model WAVE (Vanclooster et ...on a dataset collected on a sandy and a loamy soil (Vredepeel site: Boesten and ... Lihat dokumen lengkap

... the data base for the estimation of degradation parameters was too small in some cases for obtaining reliable ...have a great influence on the quality of simulation result: the user experience (Botterweg, ... Lihat dokumen lengkap

... From the laboratory studies with bentazone and the soil from the 0±25 cm layer, a half- life of 206 days was derived at 58C and of 37.6 days at 158C. The variation coefficient of the rate coefficient at 58C was ... Lihat dokumen lengkap

... test a blank with chemical solution with no soil was used to check possible losses of active ingredient, and also for the correction of the initial ...and a solution aliquot was drawn for HPLC ...eluent ... Lihat dokumen lengkap

... degradation of IPU under three different temperature (5, 15, and 258C) and up to eight different moisture regimes (5±100% of maximum water holding capacity, MWHC 4 ) in soils from sites I and III (sampling depth: ... Lihat dokumen lengkap

... The data chosen were for the winter period of 1990/91, and for Plots 6 and ...to a single pass with a power ...leaching data from this plot thus relate to the residual pesticide from the ... Lihat dokumen lengkap

... such a `user-specific variability', good modelling practices (GMPs) are ...models. A `high level' model test will, therefore, not only include the evaluation of the applicability of the model concept, but ... Lihat dokumen lengkap

... 2 a and b), so the models were conclusive about the leaching potential of ethoprophos (which is ...using a higher distribution ...from a pesticide registration point of view, as kinetic sorption may ... Lihat dokumen lengkap

... soil water drainage curve ...soil water is extracted by the roots. The former mechanism causes the water to reside longer in the top layers where it is available for evapotranspiration, while the ... Lihat dokumen lengkap

... initial water contents at the site, which is especially critical for such short-term simulations, where the initial conditions may greatly influence the ...of water table position were considered less ... Lihat dokumen lengkap