Respuesta del rendimiento biológico y agrícola de plantas de camelina (Camelina sativa) y del contenido de proteína y aceite de sus granos al efecto residual de la fertilización orgánica y mineral

摘要

Camelina ( Camelina sativa (L.) Crantz) is an important crop for biofuel production and animal feed. A camelina cv. Calena culture experiment was carried out to test the effect of residual organic and mineral fertilization after a crop of winter rape oilseed ( Brassica napus L.). The fertilization treatments applied to oilseed rape were two: thermal dry sewage sludge (TDSS) at rates 0 (r0) without fertilization, rate 1 (r1) that covers the nitrogen needs of the plant and rate 1.5 (r1.5), and alternatively mineral fertilizer (MF) N-P-K-S formula 15-15-15-20 at rates r0, r1 and r1.5. The camelina experiment was carried out in a greenhouse on the same pots of previous winter oilseed rape crop with the same soil and TDSS or MF. The variables analyzed were the following: dry weight (biological yield) of seed (SW), aerial biomass (ABW) and root biomass (RBW), percentage (%) of Kjeldhal Nitrogen (N) in: % NS, % NAB and % NRB. In order to determine the seed’s quality, the variables studied were crude protein (% CPRS) and oil content (% OCS). The statistical study analyzed the variance of the chosen factors, namely treatment (TDSS and MF) and rates (0, 1 and 1.5). Treatment-rate interaction was no significant for all variables except ABW and SW (p ≤ 0.05).Treatment type only was significant in ABW, and rates were significant in all variables except RBW. As a result, this test with camelina crop showed a good response to residual fertilizer across the variables under analysis, with r1 and r1.5 for TDSS and r1 for MF. The highest % OCS values were obtained with r0, without fertilizer, while the highest % CPRS was obtained with r1.5 in both treatments (TDSS and MF).