text Groningen Drukkerij v/h Koeh Knuttel 1948 Ind 55 p.: ill.; 22 cm. 55 p.: ill.; 22 cm. Thesis (Dr.)- Faculteit der Wisen Natuurkunde te Verdediogen off Vrijdag, 1948.-- Bibl.: p. 598-601 ALBERDA MAIZE PHOSPHATE FERTILIZERS NUTRIENT UPTAKE 633.15 633.15ALBi INLIS000000000007950 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)