23/Dec/2020General aspect of the trial, during the lettuce planting process.
04/Jan/2021Trial overview.
04/Jan/2021Trial overview.
04/Jan/2021Trial detail.
18/Jan/2021Comparison of the 4 treatments for the sewage sludge, repetition R2.
18/Jan/2021Comparison of the 4 treatments for the dried sewage sludge, repetition R2.
18/Jan/2021Comparison of the 4 treatments for the dried sewage sludge with additive, repetition R2.
18/Jan/2021Comparison of the 4 treatments for the compost, repetition R2.
18/Jan/2021Comparison of the 4 treatments for the commercial organic nitrogen fertilizer, repetition R2.
18/Jan/2021Comparison of the 4 treatments for the treatment T3, repetition R2.
29/Jan/2021Comparison of the 4 treatments for the treatment T3, repetition R1.
08/Feb/2021Trial overview.
08/Feb/2021Comparison of the 4 treatments for the sewage sludge, repetition R4.
08/Feb/2021Comparison of the 4 treatments for the dried sewage sludge, repetition R4.
08/Feb/2021Comparison of the 4 treatments for the dried sewage sludge with additive, repetition R4.
08/Feb/2021Comparison of the 4 treatments for the compost, repetition R4.
08/Feb/2021Comparison of the 4 treatments for the commercial organic nitrogen fertilizer, repetition R4.
11/Feb/2021Collection and cleaning of the lettuce aerial part.