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Answer:
D. Irrigation allowed for the movement of water to fields, even without rain.
Irrigation allowed for the movement of water to fields, even without rain.
What are irrigation sources?
The most common sources of irrigation water include rivers, lakes and ponds, and groundwater.
What is the level of irrigation water?
Concentration and the formation of soluble salts in water determine its irrigation quality. Four basic methods of measuring water quality for irrigation purposes are described, including water salt (EC), sodium hazard (sodium adsorption ratio (SAR), residual sodium carbonates (RSC), and ion toxicity.
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