In recent years, a soil test for nitrogen has been developed and widely used in humid regions in predicting how much nitrogen will need to be applied to supplement natural mineralization in the soil. This test is called the:

A) diagnosis and recommendation integrated system (DRIS).
B) pre-sidedress nitrate test (PSNT).
C) soil nitrogen partial analysis (SNPA).
D) Differential Nitrate Extraction Test (DNET).
E) Mehlich II nitrogen test.


B

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