The spread of sugar cane and the technology required for its cultivation and conversion encountered obstacles—mostly rain and seasonal temperature fluctuations. As we have seen, sugar cane is a tropical and subtropical crop with a growing season that may be in excess of twelve months; it requires large amounts of water and labor. Though it can flourish without irrigation, it does far better (and increases its sugar content) when it is watered regularly and when its growing season is not subject to sharp and sudden declines in temperature.

