The research took place in the Quarantine estate area ceded by the Regional Oirectorate of Agricutture m San Martin-(ORASAM) ·focated in 1he wmict of Tarapoto, province and region of San Martin. lt is geographically located at 06 º 30 '39' 'south latitude and 76 º 22' 53" west longitude atan altitude of 260 msnmm in August 2013 and ended in Mareh 2614 at the tnstitute of Amazorrian Researetr Peruana (ttAP - San Martin). The reseatch is to~ ''SOURCES OF ·tt, P, K and' MtCRONUTRtENT tN THE PRESENCE ANO ABSENCE OF IRON CHELA TED GROWING SACHA INCHI (Plukenetia volubilis L.). - TARAPOTO- SAN MARTIN, PERU" To ·studf 1he biolog.cat assay m pots, we used 1he Ptica'dpa eootfPe from ttre native community of Lamas - "Pucallpa" which were selected from free plantations phytosanitary problems in high yield and soil material used from the 2 May hamlet, dtsbict of San Pabto, Betfavista provitrce,...