Evaluación de cinco dosis de un fertilizante químico y una dosis de fertilizante orgánico en el desarrollo y rendimiento del cultivo de ajonjolí (Sesamum indicum L.) en San Luis Talpa, La Paz, El Salvador

Abstract

The research was carried out from July 2020 to March 2021 at the Experimental and Practice Station of the Faculty of Agronomic Sciences of the University of El Salvador, located in the Tecualuya canton,  municipality  of  San  Luis  Talpa,  department  of  La  Paz,  El  Salvador,  at  a  height  of  50  meters  above  sea  level.  The  trial  was  established  in  an  area  of  1,152.48  m2,  the  activities  that  were  carried  out  to  prepare  the  land  were  a  plowing  step,  two  harrowing steps and the construction of seed beds of 1 m wide, 54  m  long  and  0.40  m  Tall.  The  sesame  seed  of  the  “Estación  UES” variety was sown manually, by position, with a distance of 0.30 m between position and 1.20 m between beds; thinning was carried  out  eight  days  after  sowing.  The  treatments  that  were  evaluated were the control or treatment 0: nothing was applied; treatment 1: 56 kg / 28 m2 (20,000 kg / hectare) of cattle manure; treatment 2: 0.50 kg / 28 m2 (180 kg / ha) of formula 15-15-15; treatment 3: 0.72 kg / 28 m2 (259.42 kg / ha) of formula 15-15-15; treatment 4: 0.84 kg / 28 m2 (300 kg / ha) of formula 15-15-15; treatment 5: 1.26 kg / 28 m2 (450 kg / ha) of formula 15-15-15;  and  treatment  6:  1.40  kg  /  28  m2  (500  kg  /  ha)  of  formula  15-15-15, which were applied in two moments: 50% was applied 10 days after sowing and 30 days after sowing was applied theother  50%.  With  treatment  3  the  highest  yield  of  sesame  seedwas obtained with an average of 4.09 kg / 28 m2 and the highestnet  economic  income  with  $  430.84  dollars;  the  highest  crudeprotein content was obtained with treatment 2 with 24.90%; andthe highest content of ether extract was obtained with treatment4 with 47.31%.