na INLIS000000000024657 20220717102100 0010-1218006495 220717 g 1 eng An experimental study of the influence of the microelements on the uptake of macroelements by plants / by Ahmed Fouad el Kholi KHOLI, Ahmed Fouad el Wageningen : Centre for Agricultural Publications and Documentation, 1961 78 p. : ill. ; 24 cm. 581.143 KHO a Thesis(Doctor)-Landbouw Hogeschool te Wageningen, 1961 581.143 PLANTS TRACE ELEMENTS 312/64 413/61