Dear Jin Wu,
Hello. Be informed that the definition of NO3(L) and NH4 (L) which is soil nitrate (ppm or ug /g soil) and ammonium respectively in layer L refer to per unit weight of soil (g-1 soil) and NO3(L) is soil concentration.
Best regards,
M.E. Asadi
M. E. Asadi,Ph.D, Research Scientist
Tel: 0098-171-3354868 (office)
Mobile phone: 0098-0911-175-2719
Fax: 0098-171-3359813
Mailing Address:
Mr. Asadi, Mail Box 49175-639, Gorgan, Iran
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