This dataset is related to the time evolution of nitrate, nitrite and dissolved organic carbon concentrations of the water collected by EFELE’s lysimeters during drainage seasons from 2014-2015 to 2017-2018. EFELE is an experimental site of the SOERE PRO network (https://www6.inra.fr/valor-pro). It is used to measure long-term evolutions of agrosystems after repeated applications of organic residues derived from animal wastes that undergo a variety of treatments (e.g. none, composting, anaerobic digestion). Two long-term agronomic experiments have been performed at the EFELE site since 2012: i) PROs, a randomized 4-block trial: 5 OWP treatments are compared to a control treatment with mineral nitrogen (N) fertilization (MIN). The OWP treatments studied are pig slurry (PS), composted pig manure supplemented with mineral N (CPigM+N), cattle manure supplemented with mineral N (CM+N), poultry manure (PoM) and a digestate of pig slurry (PS-DIG), ii) TS/MO, a split-plot trial with 4 treatments: conventional tillage and mineral N fertilization (CT_MIN), conventional tillage and cattle manure application (CT_CM), reduced tillage and mineral N fertilization (RT_MIN) and reduced tillage and cattle manure application (RT_CM).

Six plots of the PROs trial (block 1) and 4 plots of the TS/MO trial (block 1) are equipped with fiberglass-wick lysimeters. Two pairs of lysimeters are installed in each plot (depths of 40 and 90 cm, respectively). Data from 4 consecutive drainage seasons from 2014-2015 to 2017-2018 are presented in this dataset