Efecto de tres niveles de fertilización nitrogenada sobre los rendimientos y calidad del fumado del tabaco negro (nicotina tabacum), variedad tarapoto bajo condiciones de riego en el distrito de morales San Martín

The oresent invesfürntion work was carried out with the obiect and to detennine JI ........ .... that fertilizer dose Nitrogenado under watering and economic of the best results in yield and qualily of toba eco in the area of the Under M ay M orales-Tarapoto, Department of San Martín~ of conditions ecologicai Tropical D1y Forest! with an annuai precipitation of l 087 mm> abnorm.ally distributed. The c:ampaign corre.spou<ls to the transplante ll/06/95. For the statistical analysh; the statistical design of Complete Block Randomizado was u sed" (BCR). 03 treatments of Black Toba eco were u sed (Nicotiaua tabacum) that were: TI (0-60-0) witness~ T2 (60-60-0) T3 (90-60-0). Tbe security source. was with M ixtut'e sulfonítrica applied in a single dose. Tlle re:mUs were subjet:;ted to the variance aualysis and the Test of Duncan. Tbe resuH concludes that in sandy floors tbe biggest yields of Tobacco were reached to high