Chinene, VRN & Others

 

Effect of Drought on Maize Response to Nitrogen on a Red-Clay Soil, by V.R.N. Chinene and P.L. Pauwelyn, Zambia Journal of Science and Technology, Vol.8, no.1, September 1989, Pg.27-30

ABSTRACT

A study was made of the effect of drought on maize response on nitrogen on a red clay soil. The impact of the drought increased with increased in nitrogen. The first drought period coincided with the flowering period of the high nitrogen treatment and hence the greater reduction in yield than in the low nitrogen treatments. Under adequate water supply to the crop, growth is largely a function of nitrogen availability. However, when water supply becomes limiting the effect of nitrogen becomes less significant and hence crop growth becomes a function of water availability.

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