[PDF] Top 20 Directory UMM :Data Elmu:jurnal:A:Agriculture, Ecosystems and Environment:Vol77.Issue3.Feb2000:

... Levels and Moors ESA forms the largest remaining lowland wet grassland or grazing marsh system in England and is consequently of out- standing environmental interest (MAFF, 1991a, ...is a ... Lihat dokumen lengkap

... human and tsetse populations, there will be exceptions to this ...pallidipes, a savanna fly, survived in low numbers in heavily cultivated areas among remnant trees in Tanza- nia (Swynnerton, ...forest ... Lihat dokumen lengkap

... buntings and other steppe species (Potts, 1997). In part of Alentejo, a zonal plan under EU regulation 2078/92 provides for economic mea- sures to maintain arable management on environmen- tal and ... Lihat dokumen lengkap

... retention and reduces soil losses by erosion (Choudhary et ...(Ross and Hughes, 1985), and increases organic matter and nutrient levels (Francis and Knight, ...Choudhary and ... Lihat dokumen lengkap

... extensification and the factors influenc- ing this ...for a long time (Ritschel-Kandel, 1988; Oesau, ...be a remaining soil nitrogen supply caused by former ...(Haas and Streibig, 1982; Mahn, ... Lihat dokumen lengkap

... over a two-month period, from April to June ...boundaries and field boundaries, in open uncultivated areas and in the relatively open landscape, whereas they were least frequent in forest and ... Lihat dokumen lengkap

... swards and fertilization dates and rates used in this study were the same as in an ongoing MIG study on this ...+ A) or Ladino white clover ( + WC), or receiving N fertilization ( + ...the ... Lihat dokumen lengkap

... be a major factor in determining the na- ture of vegetation change and a tool for land manage- ...1989) and increase grass cover and forage pro- duction (Fierro et ...landscape ... Lihat dokumen lengkap

... Best and Beegle, 1977; Lund and Turpin, 1977; Brust and House, 1988; Manley, 1992; Cardina et ...telbach and Gross, 1984; Thompson, 1985; Louda, 1989; Louda et ...Boman and Casper, ... Lihat dokumen lengkap

... labor and time ...fuel and maintenance costs associ- ated with no-till may be overshadowed by the higher cost of new no-till ...are a consequence of the fewer trips across a field with ... Lihat dokumen lengkap

... concentration data combined with the incorpora- tion of 2520 kg ha −1 above-ground biomass plus the 970 kg ha −1 below-ground biomass yields an esti- mate of 30 kg ha −1 of phenolic C added to the green ... Lihat dokumen lengkap

... that a myc- orrhizal perennial weed (dandelion) could be used as a winter vegetative cover to improve the mycorrhizal inoculum potential and establishment of the follow- ing crop of ...had a ... Lihat dokumen lengkap

... as a key factor in raptors conservation (Butet and Leroux, 1993; Plesnik and Dusik, ...found a strong cor- relation between tick infestation on white-tailed deer and the occurrence of ... Lihat dokumen lengkap

... Pell and Pearson, 1984). Pell et al. (1980) reported a reduced number and weight of tubers as well as solids after fumigating two cultivars with 200 ppb ozone for 3 h every 14 days for a total ... Lihat dokumen lengkap

... in a mixture with pea and ryegrass, which in July was harvested green for silage ...September and win- ter wheat was ...with a harrow for weed control, until the following spring when fodder ... Lihat dokumen lengkap

... was a 6 year crop rotation with fodder beets (Betae vulgaris ...‘Lenka’ and ‘Etna’) undersown with a mix- ture of perennial ryegrass (Lolium perenne ...‘Borvi’ and ‘Tivoli’) and white ... Lihat dokumen lengkap

... Slash-and-burn agriculture is a sequence of interactions between farmers and ecosystems, which includes forest, cropping, fallow, and cropping after ...ants, and larger ... Lihat dokumen lengkap

... as a result of cul- tivation was relatively ...play a very important role in SOM stabilization of these soils in the semi-arid ...However, a considerable decline in the stable SOM especially from the ... Lihat dokumen lengkap

... maize and are marketed easily in most tropical countries, including ...under a wide range of situations. With markets generally being liberalised and opportunities for farm- ers to sell farm produce ... Lihat dokumen lengkap

... families, and the number of weevil species as separate response variables, and with the number of sweeps, the number of harvests, percent cover alfalfa, field age, field perimeter, and amount of ... Lihat dokumen lengkap