Abstract

OVANDO JIMENEZ, JAIRO  and  AGUILERA, RUTH MERY. Respuesta del arroz (Oriza Sativa l.) a la fertilización con diferentes niveles de Nitrogeno¹ (Chané. Prov. Santisteban, Santa Cruz, Verano 2008-2009). Univ. Cienc. Soc. [online]. 2012, n.7, pp. 44-51. ISSN 8888-8888.

The introduction of different nitrogen rates on rice cultivation was analyzed in the village of Chane, Obispo Santiesteban Province of Santa Cruz, in the Summer season 2008/2009. The levels of Sulfammo NPRO fertilization (80-100-120 kg / ha), Compo Master (80-100-120 kg / ha) were studied and a control without application in rice variety Paititi. The application of the treatments was done in full rice tillering (20 days after germination). During the evolution cultivation data was recorded: flowering, plant height, plants per linear meter of panicle number, panicle size, grain weight, moisture, yield per ha, and bushels. There was significant response to N application in the different variables under study. Performance was highly significant to fertilization levels at doses of 80 to 100 kg / ha. The best treatment was T2 (Sulfamo 100 kg / ha) with 28.39 fan. / ha. Followed by T1(Sulfamo 120 kg / ha) with 28.06 fan / ha.y the control: presented an average yield of 20.01 fan / ha. The economic analysis determined the most cost effective treatment to beT2 (Sulfamo 100 kg/ha).

Keywords : Rice; Fertilization; Nitrogen.