During early maize cultivation, which outcome resulted when crop rotation wasn't practiced?

💡 Explanation

Continuous maize cultivation without rotation exhausts soil nitrogen leading to decreased yields; this is due to nutrient drawdown. Farmers rotated crops to replenish nutrients, rather than dealing with declining harvests as nitrogen becomes deficient.

• Which risk increased within Sumerian canals if the flow velocity decreased below a critical threshold during irrigation?
• Which outcome would predictably occur if an ancient Mesopotamian canal's clay lining became saturated with saline groundwater?
• Which navigational error arises when 18th-century sextants experience thermal gradients?
• Which consequence arises when a Byzantine dromon overloads Greek fire?
• Which astronomical calculation was improved by the geared mechanism in medieval Islamic astrolabes?
• Which maintenance approach prolonged Roman roads using small continuously working repair teams (conductores)?