Directory UMM :Data Elmu:jurnal:A:Agriculture, Ecosystems and Environment:Vol78.Issue3.May2000:
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Two short-term critical levels which incorporate ozone dose and air saturation vapour pressure deficit (VPD) were derived from the 1995 data. In general, the 1996 data supported
Insignificant differences in the metal concentrations between the females and the males of the same species of grasshoppers showed that both sexes could equally accumulate the
Distribution of (a) NaHCO3-Pi and (b) NaOH-Pi with depth in Le Bras silt loam soil amended with liquid pig manure over 14 years. 2) were significantly (p < 0.01) affected by the
Fresh manures and stored (dry) manures were not significantly different in nutrient concentrations although stored manures had slightly higher nutrient concentrations, probably as
Since many species in this genus produce volatile fatty acids and indole and more than half of the species have not been identified, the effect of this bacterial group in general,
The concentration of total N was slightly higher in the roots of the grass-red clover sward than in roots of the grass-white clover sward, resulting in total amounts of N
In the semi-arid part of northern Tanzania, the native tropical woodland is undergoing a rapid conversion into agricultural land. This has resulted in drastic ecological changes in
In many cases such fields were the last reserves for annual field plants — without regular ploughing annual weeds disappear and perennial plants take over (van Elsen and Gün-
