农业科学
平原
ResultThe high content of nitrogen,phosphorus and potassium are mainly distributed in plains and low slope areas,and low contents are in hilly,low mountains and hillock plain.
结果中、高含量的碱解氮、有效磷和速效钾主要分布在平原及低坡度区;低含量的碱解氮、有效磷和速效钾主要分布在丘陵、低山、岗埠地带。
地球科学
平原
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