From

Yield and Economics of Maize (Zea mays) + Soybean (Glycin max L. Merrill) Intercropping System under Different Tillage Methods

B. Paudel, T. B. Karki, S.C. Shah, N. K. Chaudhary

World Journal of Agricultural Research. 2015, 3(2), 74-77 doi:10.12691/wjar-3-2-7