Kozioł, Dorota; Zieliński, Wojciech - In: Problems of World Agriculture / Problemy Rolnictwa … 09 (2009) 24
The problem of optimization of the term of planting greenhouse lettuce is considered. The main aim was maximization of a profit function (economic surplus). Profits from lettuce production and sale in dependence of the term of planting were observed. The problem consists is in estimation of the...