[PDF] Top 20 Directory UMM :Data Elmu:jurnal:S:Soil & Tillage Research:Vol54.Issue3-4.Apr2000:

... the soil was very ...to tillage and gas ¯ux ...collect soil samples from adjacent area for estimates of soil water content and total N and C ...Six soil cores were collected and ... Lihat dokumen lengkap

... of soil compaction on Central Anatolian soils in the recent years demonstrate the need for a detailed analysis of tillage system ...different tillage systems and subsequent wheel traf®c on the ... Lihat dokumen lengkap

... Worldwide, soil compaction is said to affect 68 million hectares of land principally from vehicular traf®c (Flowers and Lal, ...context, soil compaction has been ranked as the great- est problem in terms of ... Lihat dokumen lengkap

... Three soil subsamples were taken randomly within each plot and mixed to make a composite ...The soil structural stabi- lity was assessed using a variation of the wet sieving method (Yoder, ... Lihat dokumen lengkap

... affect soil structure and in®ltration, therefore in¯uencing agricultural ...on soil structure at the surface of chisel-plowed or ridge-tilled cropping systems in Pike County, OH, planted to corn (Zea mays ... Lihat dokumen lengkap

... The SN treatment is the optimum system for redu- cing overland ¯ow which is in line with other research. Contour tillage is known to diminish runoff and retain soil water (Yoo et al., 1995; Dana et ... Lihat dokumen lengkap

... The soil sampling sites were located between the cities of Sari and Neka and were about 20 km from the Caspian ...The soil samples possessed uniform characteristics (regarding clay content and type) and ... Lihat dokumen lengkap

... traditional tillage which implies frequent ploughing down to 15 cm (6±10 times/year) to maintain the soil free of ...representative soil types in the area (Table ...reduced tillage (natural ... Lihat dokumen lengkap

... percentage soil mass in the four largest macroaggregate fractions was signi®cantly higher in the compost-treated soil (Table ...the soil in large quantities and close to the plant stem had a positive ... Lihat dokumen lengkap

... needle. The heater resistance (R) was 300 O m ÿ1 . The temperature sensor consisted of copper±constantan thermocouple junction, which was pulled into and centered in the needle. With the heater and thermo- couple in ... Lihat dokumen lengkap

... chapter gives an overall view on the causes of soil degradation and the measures that can be adopted to sustain soil fertility or to remediate degraded soils. Topics mentioned include drought, ... Lihat dokumen lengkap

... the soil properties of an unploughed Eutric ...unsaturated soil incorporating a recently developed constitutive law. Model data were compared to the ®eld ...the soil was compacted down to a ... Lihat dokumen lengkap

... For this experiment, we used four plots of 4 m4 m, grouped by pairs into two larger rainfall simulation plots of 5 m10 m. The rainfall simulation plots were called K and M. Two letters were used to call each ... Lihat dokumen lengkap

... of soil microbial biomass C (MBC) and N (MBN), N-mineralization rate and available-N concentration were studied in rice±barley supporting tropical dryland (rainfed) agroecosystem under six combinations of ... Lihat dokumen lengkap

... . Data shown to have significant differences were further analysed using Tukey’s ...test. Data was analysed by ANOVA, rather than as a blocked design, because variation between blocks was not ...each ... Lihat dokumen lengkap

... smaller estimate of N e N e s 13.6, 95% CIs 2,81 than the presumed census popula- tion size. This trend was qualitatively reinforced by the bigger variance of allelic frequencies between the EPT-g 2 and COP stocks ... Lihat dokumen lengkap

... Brookfield Engineering Laboratories, USA , capable of shear rates from 2.3–450 s . The temperature range of the sample cup was regulated to 15.0" 0.28C using a circulating water bath. Calibration of the ... Lihat dokumen lengkap

... These size classes include fish from 17 to 33 cm in total body length. From Daen et al.’s paper, one would expect rays of this size to feed principally on invertebrates. However, small demersal fish are taken too, ... Lihat dokumen lengkap

... can be used to deliver essential lipids Coutteau et al., 1996; Caers et al., 1998, 1999 . Essential PUFA composition of spats was affected but to a lesser extent than the sterols. Only 20:5ny 3, along with 22:6 ny 3, the ... Lihat dokumen lengkap

... contract requires $6 compensation for every unit less than contractual. The warehouse can receive maximum 4 units. The ®rm wants to minimize the total cost ± transportation cost plus penalties for unsatis®ed ... Lihat dokumen lengkap