Solutions of the time dependent moisture flow equation with plantwater extraction are primariry obtained by numerical techniques. Analytical solutions are, by necessity, subject to more restrictive assurnptions, but are generally easy and inexpensive to evaluate. They provide exact answers for whlich round-off and computational errors are negligibl...
To a large extent the results of a farmer's efforts to get higher crop yields will be determined by the prevailing environmental conditions, i.e. by the existing complex of physical, chemical and biological factors. The possibilities of an efficient use of these factors are enlarged by our knowledge of their effects on agricultural production. Such...
