When leaves of crop plants show brownish coloration from the tips of the mid-ribs backward, they are showing deficiency symptom of? by Sunday | Jul 11 | Agricultural Science WAEC | 0 comments A. magnesium B. zinc C. nitrogen D. copper E. phosphorus Correct Answer: Option E – phosphorus Users Also Read These:If T represents the gene for tallness while t…To show the whole presentation in Microsoft…A very poor growth in plants and discolouration of…The physiological changes that show up during…Chlorosis with characteristic parallel white or…