TY  - BOOK
AU  - Krishna,K.R.
TI  - Agricultural prairies: natural resources and crop productivity 
SN  - 9781771880503
AV  - QK938.P7 K75 2015
U1  - 630.915/3 
KW  - Prairies
KW  - Agriculture
KW  - Natural resources
KW  - Crop yields
KW  - Agricultural productivity
KW  - Ressources naturelles
KW  - Cultures
KW  - Rendement
KW  - Productivité
ER  -