System comparison: crop rotation

Objective

Clarification of the following questions:

• Which crop rotation achieves the highest profit margin at the location (with a stable humus balance)?
• Which crop rotation achieves the most stable yield level at the location (lowest possible fluctuations / risk)?
• Can stable wheat yields and qualities be produced in all crop rotations?
• Comparison of ZR and RW (a) together in 6-field crop rotation or (b) separately in two 3-field crop rotations

Experimental set-up

Field: Holstein 1, trial scope 68 plots, 15 ha
Trial duration: 2013 + at least 12 years

Variants (crop rotations)

• KMa (2) – WW (1)
• SMa (5) – Trit (3) – ZR (4)
• RW (8) – WW (6) – WW (7)
• ZR (11) – WW (9) – WW (10)
• ZR (17) – DU (12) – RW (13) – WW (14) – KE (15) – WW (16)

(Specified numbers can be found in the site plan)

Secondary trial questions are possible once the crop rotations have been established