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Table 2 Overview of the two experiments

From: Construction of a large-scale semi-field facility to study genotypic differences in deep root growth and resources acquisition

Treatment Exp. 1 Exp. 2
Unit 3 1 and 2
Previous crop Rye (cover crop) Wheat/grass (+ cover crop)
Plowing 23.03.16 20.12.16
Cultivars 59 (n = 2) 76 (n = 4)
Cultivars test experiment (rows) 7 (n = 4) 7 (n = 4)
Seeding date 12.04.16 28.03.17
Seeding density (seeds m−2) 300 300
Fertilizer date 12.04.16 28.03.17
Fertilizer application rate (kg N ha−1) 70 100
Root imaging 03.06.16/28.06.16 05.06.17/23.06.17
Day of flowering (anthesis) ≈ 13.06.16 ≈ 14.06.17
Rainout shelter deployed 15.06.16 07.06.17
Harvest 02.08.16 03.08.17