Table 7 Relation of the seed mass of the sown forbs to their cover in field (GLM).

From: Co-seeding grasses and forbs supports restoration of species-rich grasslands and improves weed control in ex-arable land

Seed mass and year effect on coverage

G + D

D

z

p

z

p

Seed mass

9.544

 < 0.001

7.431

 < 0.001

Year 2015

− 7.540

 < 0.001

9.007

 < 0.001

Year 2016

− 13.574

 < 0.001

− 8.917

 < 0.001

Year 2017

− 14.208

 < 0.001

− 11.218

 < 0.001

Seed mass: year 2015

− 7.538

 < 0.001

− 0.643

0.520

Seed mass: year 2016

− 10.608

 < 0.001

− 4.616

 < 0.001

Seed mass: year 2017

− 9.880

 < 0.001

− 5.724

 < 0.001

  1. Significant effects are marked in boldface (p < 0.05). G + D—plots sown with grass and diverse forb seed mixture, D—plots sown only with diverse forb seed mixture.
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