Effect

Estimate

Std. error

t-value

p-value

Intercept

−219,625.734

1,996,540

−0.11

0.289

Pesticides

46.882

21.221

2.209

0.043

Improved seeds

94.030

34.762

2.705

0.016

Labor force

21.630

47.777

0.452

0.657

Fertilizer

−151.119

43.682

−3.460

0.00

Irrigated land

0.427

0.100

4.27

0.001