Proc. of the National Symposium on cropping system. (3-5 April, 1985).
Indian Society of Agronomy.
Proc. of the National Symposium on cropping system. (3-5 April, 1985). - New Delhi ISA. 1986 - 269
633
Proc. of the National Symposium on cropping system. (3-5 April, 1985). - New Delhi ISA. 1986 - 269
633