TY  - SER
AU  - Magalhaes,J.R.
AU  - Machado,A.T.
AU  - Fernandes,M.S.
AU  - Silveira,J.A.G.da
TI  - Nitrogen assimilation efficiency in maize genotypes under ammonia stress
KW  - Milho
KW  - Nitrogenio
KW  - Genotipo
KW  - Stress
KW  - Amonia
ER  -