Question: Which two reasons below help to explain the relatively high rates of nitrogen fixation in flooded rice paddy soils? Select the best two answers from

Which two reasons below help to explain the relatively high rates of nitrogen fixation in flooded rice paddy soils? Select the best two answers from the choices below.

organic matter content is high

oxygen levels in soil are extremely low

organic matter mineralization rates are high

nitrification rates are high

Rice form symbiotic relationships with nodule

-

forming Rhizobia

Which two reasons below help to explain the

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