5.5 Irrigation methods
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19 Terms
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waterlogging
roots can not get enough oxygen: raises water table
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salinization
too much salt left behind through evaporation or salt water intrusion → toxic for plant growth
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efficiency
% of water that reaches the plant roots and is not lost to evaporation or runoff
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furrow
build trenches and fill with waterf
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furrow efficiency
65%
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furrow benefits
low effort and cheap
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furrow drawbacks
water logging and salinization
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flood
flood field and let water soak evenly
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flood efficiency
70-80%
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flood benefits
easy, cheap
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flood drawbacks
water logging and salinization
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spray
pumped through nozzles (sprinklers)
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spray efficiency
75-95%
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spray benefits
more efficiency
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spray drawbacks
more $$ and energy
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drip
slowly dripping hose, buried or on top
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drip efficiency
more than 95%
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drip benefits
more efficient, reduces weed growth, good for all perennials
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drip drawbacks
most expensive, might need to remove hoses to plow