Micronutrient spray treatments showed rather remarkable
differences in the yield attributes (Table 2). Mn and Zn foliar
spraying increased the panicle number per plant and the grain
number per panicle of millet by 5.1 and 4.5, respectively, over
those of the control. The size of grain with micronutrient foliar
application treatments was very similar. Hence, plants grown
using different micronutrients foliar sprays did not differ in
one-thousand grain weight. Significant interaction between
the irrigation water sources and foliar spray treatments on
all studied yield attribute parameters was observed except for
the panicle per plant (Table 3).
Grain and biological yields of plants were also significantly
affected by irrigation with sewage effluent. Grain and biological
yields for the plants irrigated with raw sewage were 9.2 and
9.9 greater, respectively, than the yields of the plants irrigated
with 50 diluted sewage. The grain and biological yields of the
plants irrigated with 50 diluted sewage were also 17.2 and 18.3
higher, respectively, than the control.
Mn and Zn foliar spraying increased the grain and biological
yields by 7.0 and 6.5, respectively, compared with those of
the control. Significant interaction between irrigation water
sources and micronutrient spray treatments was observed for
grain and biological yields (Table 3). Irrigation with raw sewage
effluent along with Mn and Zn foliar spraying and irrigation
with well water along with Mn and Zn foliar spraying
exhibited the greatest and least grain and biological yields,
respectively.