The aim of this experimental work was to investigate the effect of utilizing different rates of dried biogas digester residue as organic fertilizer and solar energy for heating greenhouse on growth, development, productivity, and fruit quality of tomato hybrid (Agiad 7) during winter of two following growing seasons (2013 and 2014). Two similar gable-evenspan greenhouses were functioned at EL-Sabahia Horticultural Research Station. The seedlings of tomato hybrid Agiad 7 were planted on the 1 st week of December during the two growing seasons under two different greenhouse microclimates. The first greenhouse (GH1) was equipped with a complete heating system utilizing the solar energy, while, the second greenhouse (GH2) was mechanically ventilated during daylight without heating system. Referring to the effect of the solar heating system on the greenhouse microclimate, the obtained results revealed that, the maximum and minimum indoor air temperatures of greenhouse (GH1) were (24.