na INLIS000000000026314 Ind 0010-1218008152 Assessment of fertilizer nitrogen requirements of potatoes and sugar beet NEETESON, J.J. J.J. Neeteson Wageningen Internationaal Agrarisch Centruum 1981 114 p. : ill. ; 24 cm. 114 p. : ill. ; 24 cm. 635.21-184NEEa Disertasi(Dr)-Landbouwwetenschappen te Wageningen, 1981 635.21-184 SOLANUM TUBEROSUM SUGARBEET NITROGEN FERTILIZERS 1372/DTS/89-mfn28170