02005naa a2200241 a 450000100080000000500110000800800410001902200140006010000260007424501520010026000090025250001490026152011480041065000190155865300120157765300200158970000210160970000190163070000200164970000240166970000210169377300490171421569392023-09-27       2023    bl uuuu     u00u1 u    #d  a1806-99911 aSOUZA JUNIOR J. B. de  aAgronomic efficiency of fermented composts in organic fertilization management of butterhead lettuce and green leaf lettuce.h[electronic resource]  c2023  aTítulo em Português: ficiência agronômica de compostos fermentados na fertilização de alfaces tipo americana e crespa em sistema orgânico  ahis work aimed to evaluate the agronomic efficiency of fermented composts formulated with brewery waste (RC) with castor bean bran (FM) or Gliricidia sepium leaf bran (FG) in the fertilization of butterhead lettuce and green leaf lettuce grown in succession. The experimental design was in randomized blocks in a 2x5 factorial scheme, consisting of two fermented composts and five N doses (0, 50, 100, 200, and 400 kg/ha). The composts were formulated by combining 60 RC+40 FM and 60 RC+40 FG considering the % of dry matter after moisture correction. We verified that the phytotechnical performance of the butterhead lettuce, in relation to fertilization, is influenced by the applied dose; no difference regarding the composts was noticed, though. The doses of 272.2 and 248.71 kg/ha of N enabled the maximum yield of 78.01 and 87.79 t/ha, respectively, 60 RC+40 FM and 60 RC+40 FG. The fermented compost containing FM, in the range of the stipulated doses, showed a residual effect on the main phytotechnical traits of the green leaf lettuce, and the magnitude of the effect is directly proportional to the dose applied in the previous crop  aLactuca Sativa  aBokashi  aOrganic farming1 aGUERRA, J. G. M.1 aGOULART, J. M.1 aSILVA, L. O. da1 aESPINDOLA, J. A. A.1 aARAUJO, E. da S.  tHorticultura Brasileiragv. 41, e2599, 2023.