J. Lagemann

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The characterization and evaluation of agroforestry systems is exemplified for the Acosta-Puriscal region in Costa Rica. After the physio-biological and socio-economic description of the study region, it was stratified into two homogenous areas, and the prevailing agroforestry systems classified into the principal groups: 1. coffee and trees, 2. pasture and(More)
The concentrations of sodium, potassium, and chloride in various control sera were determined by reference methods. The reference method values were compared with the corresponding method-dependent assigned values. Sodium: Measurements by flame photometry and ion selective electrodes differed on the whole by less than 1% from the reference method value;(More)
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