Efeitos de nitrogenio e potassio na utilizacao de nitrato e distribuicao de carboidratos em cana-de-acucar
Nitrate utilization and carbohydrate distribution as affected by nitrogen and potassium nutrition in sugar cane plants
CANA DE ACUCAR NUTRICAO VEGETAL NITROGENIO POTASSIO FIXACAO DE NITROGENIO SAO PAULO