Which limiting factor decreased maize yield in ancient terraced agricultural systems despite successful soil conservation?

💡 Explanation

When continual planting occurs without nutrient replenishment, terraced soils lose essential elements because water runoff facilitates nutrient leaching down terraces, ultimately depleting the nutrient profile in the upper plots. Therefore, yield suffers due to nutrient leaching, rather than pest, frost, or pollination issues, which are distinct and separate limiting factors.

• Which mechanism was crucial in enabling accurate celestial navigation using a Kamal during the medieval Islamic period?
• Which risk increases when ancient Mesopotamian bronze sickle blades are repeatedly used to harvest reeds in brackish water?
• Which limitation constrained the productivity of Aztec chinampa agriculture systems, despite their innovative design?
• Which mechanism limited cutting tool effectiveness despite widespread bronze axe blade use by Mesopotamians?
• Which risk increased when medieval siege engines launched quicklime against stone fortifications?
• Which outcome resulted from the ancient Andean civilizations' usage of terrace farming on steep slopes experiencing heavy rainfall?