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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