TY  - GEN
AU  - Upadhyay,A.K.
TI  - Studies on interaction effects of nitrogen, potassium and zinc on wheat-moong-maize cropping sequence
KW  - Nitrogen
KW  - Potassium
KW  - Zinc
KW  - Wheat
KW  - Design
KW  - Maize
KW  - Sequential cropping
KW  - Yields
KW  - Sampling
KW  - Roots
KW  - Fertilization
ER  -