Table 3 Effect of various sulfate fertilizers application on net income and benefit-to cast ratio of maize under normal and drought conditions.

From: Sulfate-mediated Drought Tolerance in Maize Involves Regulation at Physiological and Biochemical Levels

Treatment

Total expenditure (*PKR ha−1)

Grass income (PKR ha−1)

Net Income (PKR ha-1)

Benefit: cost ratio

Normal

Drought

Normal

Drought

Normal

Drought

Normal

Drought

Control

134394

132754

174020

97900

39626

−34854

1.29

0.74

K2SO4

139794

138154

229526

166100

89732

27946

1.64

1.20

FeSO4

188394

186754

208560

143726

20166

−43028

1.11

0.77

CuSO4

188394

186754

155540

95700

32854

−91054

0.83

0.51

Na2SO4

137394

135754

185174

121000

47780

−14754

1.35

0.89

  1. *1.00 USD = 159.7 PKR.