If one were to boil this whole process down, it is the system developed to produce the metal type that would prove to be the most innovative. Many of the processes used to print these books generally existed in one form or another, but the metal type is a stroke of genius as nothing like it had existed before.
Soil Conservation. Soil conservation is a combination of all methods of management and land use that safeguard the soil against depletion or deterioration by natural or human-induced factors.
Healthy soil is the foundation of the food system. It produces healthy crops that in turn nourish people. Maintaining a healthy soil demands care and effort from farmers because farming is not benign. By definition, farming disturbs the natural soil processes including that of nutrient cycling - the release and uptake of nutrients.