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article/chapitre/communication
In response to the European Community Nitrate Directive (91/676) a catchment scale Geographical Information System (GIS) model of nitrate leaching has been developed to map nitrate vulnerability and predict average weekly fluxes of nitrate from [...]article/chapitre/communication
H. Kankanen ; A. Kangas ; T. Mela ; AL Et | 1998Seven field trials at four research sites were carried out to study the effect of incorporation time of different plant materials on soil mineral N content during two successive seasons. Annual hairy vetch (Vicia villosa Roth), red clover (Trifo[...]rapport
ouvrage
article/chapitre/communication
The influence of soil properties on microbiological processes is often examined by comparing the behaviour of taxonomically disparate soils. One of the limitations of this approach is that the results can be confounded by the unmeasured properti[...]article/chapitre/communication
K. Ewel ; J. Bourgeois ; T. Cole ; S. Zheng | 1998Understanding differences among fringe, riverine, and basin zones in mangrove forests may assist mangrove scientists in clarifying the relationships between tree distributions and environmental characteristics, and may assist resource managers i[...]article/chapitre/communication
article/chapitre/communication
Q. Bai ; T. Sinclair ; J. Ray | 1996Wheat (Triticum aestivum L.) is commonly grown in regions that are subject to water-deficit conditions. To maximize yield potential, it is necessary to optimize use of the water that is received. Two plant traits that are important in this optim[...]article/chapitre/communication
article/chapitre/communication
K. Gill ; S. Jalota ; S. Prihar ; T. Chaudhary | 1977article/chapitre/communication
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H. Taylor ; B. Klepper | 1974article/chapitre/communication