Section 14
Chapter 13,771

Nitrogen nutrition of citrus in the nitrate and ammonium forms. III. Effects of nitrate and ammonium nitrogen on the growth of citrus trees-sand cultures

Van Der Merwe, A.J.

Farm, S. Africa 24: 361-365


Accession: 013770692

Citrus trees grown in sand culture were well developed and healthy where all the N was supplied as NO3, but were stunted and suffered from dropping leaves and from multiple bud formation (as caused by Cu deficiency) where the whole N supply was of the NH4 form. Those receiving all or 75% as NO3 had normal leaves, but with increased proportions of NH4 salts the mature leaves developed increasingly marked chlorotic areas similar to those caused by deficiency of Zn, Mn or Fe.

PDF emailed within 1 workday: $29.90