[PDF] Top 20 Directory UMM :Data Elmu:jurnal:S:Soil & Tillage Research:Vol57.Issue4.Jan2001:

... Cotton FHs, CC, and root biomass as in¯uenced by tillage systems and N levels at 2-week intervals during 1997 and 1998 growing seasons are presented in Figs. 2 and 3. Drier weather and higher temperature in the ... Lihat dokumen lengkap

... conservation tillage systems known for their improvement in yield, no-till technology was found to in¯uence soil quality as ...well. Soil quality indices are also affected by wheat rotations at ... Lihat dokumen lengkap

... Lemunyon Predicting soil erosion in conservation tillage cotton production systems using the revised universal soil loss equation RUSLE.. Deckers Tillage erosion on slopes with soil c[r] ... Lihat dokumen lengkap

... A plot of PCA scores (1) against scores (2) is shown in Fig. 2. This pairing of scores showed the maximum separation of the data, splitting the data set according to location. The data appear to lie ... Lihat dokumen lengkap

... the soil had about the same water content at all measuring times (data not ...sandy soil at Korntved and the sandy loam at Ballum, the tillage system had only minor effects on the vane shear ... Lihat dokumen lengkap

... of soil loss occurred in ...the soil loss balance in part of the study ...of tillage parallel or oblique to the maximum slope gradient increased soil ... Lihat dokumen lengkap

... It is important to consider the yield potential and sensitivity to hydrothermal regimes of wheat cultivars recommended for different dates of sowing while studying their response to moisture conservation treat- ments. ... Lihat dokumen lengkap

... reduced tillage is the increased sorption of herbicides under NT ...surface soil under NT conditions. However, differential effects of tillage management on herbicide degradation have been reported ... Lihat dokumen lengkap

... intact soil cores were taken from CT and NT ®eld plots, respectively. Each soil core from CT ®eld plot was crushed gently and visible residues were picked out by hand, and 1 gm of 14 C- labeled corn leaf ... Lihat dokumen lengkap

... by tillage after either 1 ...signi®cant tillage effects after 1 year may be due the short-term nature of the treatment ...last tillage operation. In the interim, the soil may have settled, ... Lihat dokumen lengkap

... evaluating soil management sys- tems affecting soil quality and therefore agricultural sustainability (Doran and Parkin, 1994; Sollins et ...of tillage methods on decomposition rates of organic ... Lihat dokumen lengkap

... of soil structure were used for demonstrat- ing the spatial arrangement of macropore ...mm soil cores (plastic cylin- ders) taken twice as mentioned above were used for X- ray computer ... Lihat dokumen lengkap

... clay soils could not be supported by statistically signi®cant results in the experiments presented here. In four long-term experiments, there were no signi®- cant differences in soil compaction or in saturated ... Lihat dokumen lengkap

... all tillage systems and re¯ect the history of manure application at this ...by tillage P ˆ 0 : 002† and were higher for the ridge till system (89 mg kg ÿ1 ) than either the moldboard (58 mg kg ÿ1 ) or ... Lihat dokumen lengkap

... Numerous studies have indicated that crop residues such as wheat straw (Gue'rif, 1979), corn residue (Gupta et al., 1987), peatmoss (Ohu et al., 1985), and slightly and highly humi®ed peats (Zhang et al., 1997) decrease ... Lihat dokumen lengkap

... dimensional soil cutting not withstanding, the mechanism of shear failure has received considerable attention and the shear parameters, cohesion c and angle of internal shearing resistance f have been used to ... Lihat dokumen lengkap

... in¯uence the type of turning furrow. Some studies do not describe the support mode and it is known that this in¯uences the soil movement, e.g. in a trailed harrow disc we can regulate the power draught of the ... Lihat dokumen lengkap

... on soil aggregate ...on soil aggregate ...that soil erodibility was greater under agricultural land use than under ...agricultural soil. For both lands uses, climate in¯uenced soil ... Lihat dokumen lengkap

... established soil orders, are clay soils with unusual and interesting ...this soil order and the challenges of management involved in its effective use for agricul- tural ... Lihat dokumen lengkap

... Diversity and dominance indices, with exception of Berger and Parker values, also suggested uniformity among treatments (Table 3). Shannon and Wiener and evenness values indicated that the patterns of species composition ... Lihat dokumen lengkap