[PDF] Top 20 Directory UMM :Data Elmu:jurnal:A:Agriculture, Ecosystems and Environment:Vol80.Issue1-2.Aug2000:

... Keer and Maelfait (1988) found small differences in habitat preferences of ...spring and summer, but those of ...provide a base for active prey cap- ture (Alderweireldt, 1994)), this (and ... Lihat dokumen lengkap

... fertilizers and the quantities of plant nutrients in food products (Granst- edt, 1992a, ...phosphorus and potassium in the form of in- organic fertilizer strongly increased in relation to their outputs in ... Lihat dokumen lengkap

... table and the sat- urated aquifer. Van der Werf and Zimmer (1998) cite several methods which can be used to assess this risk as a function of soil characteristics only ...Goss and Wauchope, ... Lihat dokumen lengkap

... 3-year and annual crop rotations with a wheat (Triticum aestivum ...rotation and found the former more profitable. Different crops and crop- ping systems have been shown to exhibit marked ... Lihat dokumen lengkap

... using a Minolta chlorophyll meter, model SPAD-502 (Minolta Camera, 3-13, 2-Chrome, Azuchi-Machi, Chuo-Ku, Osaka 541, ...meter and used to estimate the chlorophyll content of the leaves ...cm 2 ... Lihat dokumen lengkap

... of a decline in plant species richness dur- ing succession, the diversity of leafhoppers did not change as ...maintained a diverse and abundant leafhopper ...abundance and species richness ... Lihat dokumen lengkap

... 25 and 50% artificial shade than in CTd maize during S94/95 ...growth and the periodic removal of the basal branches, which progressively increased the distance between ground level and the base of ... Lihat dokumen lengkap

... short and informative, and the book has a cohesiveness that would reflect the team effort of the STEEP ...book and interest of the subject material, I am sure it will have a wide ... Lihat dokumen lengkap

... (p≤0.1) and conventional plots ...1997 and 1998 growing ...had a significantly higher per- centage of stable aggregates than the conventional plots (Table ...(Tisdall and Oades, ... Lihat dokumen lengkap

... productivity and large environmental ...three and a half years of vegetable cropping and discusses the implications for ...sustainability. A vegetable farming-systems experiment began ... Lihat dokumen lengkap

... Lepsämänjoki and Yläneenjoki spring cereals are the most common crops (59 and 65% of the total cultivated area, ...Yläneenjoki and 7% in ...(pigs and poultry) (Table 1) in ...densities, ... Lihat dokumen lengkap

... are a good starting point for a more complete (biophysical, socio-economic and policy) evaluation of AF ...(1995) and formulated the hypothesis that biophysical yield ad- vantages can only be ... Lihat dokumen lengkap

... acidic, and have low to very low fertility (Table ...of a nearby similar ...with and without nitrogen (urea), and with and without phos- phorus (Single Super Phosphate) ...was a ... Lihat dokumen lengkap

... height and diameter at breast height ...abundance and density of shade species were divided into live form classes: herbs as tall as or taller than the coffee bushes; shrubs or trees <10 cm ...cm. ... Lihat dokumen lengkap

... Only a few species of birds, such as the skylark (Alauda arvensis) and lapwing (Vanellus vanellus), are restricted to agricultural land, and several studies have shown that these have suffered ... Lihat dokumen lengkap

... Africa and Hungary was measured on suscepti- ble and resistant South African wheat cultivars and a susceptible Hungarian barley ...‘Betta’, and ‘Isis’) tested in both countries, ... Lihat dokumen lengkap

... herbaceous and wooded riparian strips, the overlap index of small mammal communities in these habitat types was lowest, indicative of differences in ...fields and prairies in the United States (Hooper, ... Lihat dokumen lengkap

... Bedford and Usher, ...farmland and are thought to be a supply of weed seeds (Forman and Baudry, 1984; Burel, ...support a greater abundance and species richness of Carabidae ... Lihat dokumen lengkap

... parameters and indices that gov- ern decomposition and nutrient release in natural ecosystems were identified by Swift et ...(1982) and Schlesinger and Hasey ...decomposition, ... Lihat dokumen lengkap

... spatial and temporal distribution of floral resources in ...resources and consequently pollen flow within and between patches of flowering ...to a particular site or patch, both within ... Lihat dokumen lengkap