Recommended chemical soil test procedures: for the North Central Region /

I tiakina i:
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Kaituhi matua: Brown, J. R.
Hōputu: Pukapuka
I whakaputaina: Columbia, MO: Missouri Agricultural Experiment Station, c1998.
Putanga:Rev. ed.
Rangatū:North Central Regional Research Publication No. 221 (Revised)
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