The present invention discloses system and method for crop yield forecast of various fruit and vegetable plants grown for industrial purposes. The system forecasts actual crop yield, namely present and future yield, considering the particular efficiency of forecasted and actual radiation intensities of natural and possibly artificial lighting applied to the greenhouse on a specific plant species. The system and method are employed for planning including cost-effective management of a greenhouse including scheduling of operations intended for the planting, growing, harvesting, picking, shipping and marketing of selected amount of crops in a selected season of a particular year.
