TY  - BOOK
AU  - Thangavelu,R.
TI  - Studies on the effect of humic acid on humic acid on the incidence of blast disease incited by Pyricularia oryzae cav.growth and yield parameters and certain biochemical changes in rice (Oryza sativa L.) varieties IR50 andIR20
KW  - Humic acid
KW  - Oryza sativa
KW  - Pyricularia oryzae
KW  - Blast disease
KW  - Yield
KW  - Varites
ER  -