[PDF] Top 20 Directory UMM :Data Elmu:jurnal:A:Agriculture, Ecosystems and Environment:Vol78.Issue3.May2000:

... crop and grass variables from Table 1 (so not including total tillage, total agricultural land or livestock variables), but dividing total grass into permanent and tempo- rary grass (the change in ... 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

... being a traditional practice, agroforestry has not been able to flourish in the Hills due partly to open access to forests and ...(Thapa and Weber, 1990). A strategic agro- forestry promotion ... Lihat dokumen lengkap

... sand and organic soils at Jokioinen, southern Finland in 1985–1988 and found that trifluralin was the most ...Eleftherohorinos and Kotoula-Syka (1990) also found that trifluralin was persistent in ... Lihat dokumen lengkap

... (galactose and mannose) and deoxysugars (rhamnose and fucose) (Guggenberger et ...rhamnose and fucose) compared to the other fractions, while the sand size separates were depleted in these ... Lihat dokumen lengkap

... practices. A shift to susceptible cul- tivars, widespread increase in nitrogen application (es- pecially inorganic nitrogen), and increased planting densities are all factors known to increase blast inci- ... 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

... plants and forest (Fox, 1953; Conklin, ...consistent and complete indigenous systems of plant taxonomy and ...for a single species, and many uses, including medicines, aromatics, ... Lihat dokumen lengkap

... crops and the potential risk for leaching of the possible nitro- gen surplus in the ...grass and clover ...grass and clover roots corresponded to the average distribution of the above-ground plant ... Lihat dokumen lengkap

... cattle and their improvements for nesting waterfowl is ...system and cover improvement did not result in a greater overall nest density in 1993, changes in nest distribution occurred and ... Lihat dokumen lengkap

... to agriculture and/or mining as a major economic activity and a major component of exports, the selected countries also have other ‘developing na- tion’ characteristics which include: ... Lihat dokumen lengkap

... be a strength) is that it tries to collect relevant information from very different sources to make the ...in a highly specialized scientific language, the book is time consuming to ...interesting ... Lihat dokumen lengkap

... tion and that of the potential vegetation should be short, owing to time of sampling of the seed ...have a greater number of seeds of this ...erectus and Phleum pratense among others are only present ... Lihat dokumen lengkap

... In addition, Hawthorne et al. (1998) showed that un- cropped wildlife strips could enhance the abundance of polyphagous predators within the field because they can act as an additional source of colonizing individu- als ... Lihat dokumen lengkap

... have a range of direct and indirect effects on plant community ...trampling and seed dispersal in ...scrapes and middens can result in dramatic but localised impacts on vegetation composition ... Lihat dokumen lengkap

... sucrose and fructans in the culm after ozone exposure — as compared with the control — already mirrors the obvious inadequate carbon supply for the growing ...sucrose and fructan content of the in- ternodes ... Lihat dokumen lengkap

... land and cereal fields was caused by the widespread abundance of four win- tering ...leaves and seeds for A. arvensis and A. pratensis, and soil invertebrates for ...apricaria ... Lihat dokumen lengkap

... as a winter ...wheat and dandelion grown over the winter will result in greater VAM fungal inoculum potential, soil aggregation and subsequently maize P content and yield in comparison with ... Lihat dokumen lengkap

... or a mere recycling of nutrients depends on the source of the nutrients with regard to the boundaries of the system being consid- ...1986) and some maize–teff farming systems of the Ethiopian highlands ... Lihat dokumen lengkap

... treatment and soil depth. On a profile basis, the soil receiving the highest rate of P ...established a relationship between levels of added P (from manure) and soil residual ... Lihat dokumen lengkap