Seeding technology;Single-seed;Corn;Under-root fertilisation
Brenner, W.; Wenner, H.-L.

Fertilizer distributor;Full width fertilizer distributor
Brenner, W.; Wenner, H.-L.

Ploughing;Reversible plough;Extra large tractor;Articulated steering
Brenner, W.; Wenner, H.-L.

Conventional (right-hand) plough;Ploughing
Brenner, W.; Wenner, H.-L.

Fertilizer distributor;Full width fertilizer distributor;Loading;Twin-axle trailer
Brenner, W.; Wenner, H.-L.

Fertilizer distributor;Boom fertilizer distributor;Trailed bulk hopper distributor
Brenner, W.; Wenner, H.-L.

Seeding technology;Single-seed;Corn;Pneumatic single seed drill (vacuum principle)
Brenner, W.; Wenner, H.-L.

Seeding technology;Single-seed;Pneumatic single seed drill (vacuum principle)
Brenner, W.; Wenner, H.-L.

Seed drill;Cultivation drilling combination;Seed drill with full width seed hopper;Rotary cultivator;Broad seeding;Rotovator seeding;Seed drill;Drilled seed
Brenner, W.; Wenner, H.-L.

Moorpflug
Tillage implement;Conventional (right-hand) plough;Track laying tractor;Land improvement
Brenner, W.; Wenner, H.-L.