Concept of space agriculture is developed for habitation on Mars. Space diet is designed and evaluated with nutritional point of view. Combination of rice, soybean, sweet potato, green-yellow vegetable (represented by Komatsuna), silkworm pupa, and loach was found to fill the nutritional requirements.
Application of insects is discussed for pleasant living in closed space environment. Insects are useful in various way. Some insects are quite effective to process metabolic waste and dead body of animals. Larvae of flies are candidate insect useful in space agriculture. Because of shorter life cycle of fly compared to silkworm, its proliferation rate is much greater than silkworm. It is a problem of culture whether the consumption of fly larvae to recycle dead human body could be acceptable in space agriculture.