Can Superabsorbent Polymers Improve Plants Production in Arid Regions?

Figure 3

Comparison of the effect of different levels of superabsorbent application on (a) seed yield, (b) dry matter yield, and (c) harvest index of studied crops. Bars indicate the confidence intervals of the weighted cumulative effect size among the investigated experiments (C denotes the control).

(a)

(b)

(c)