History of Agricultural Engineering The development of the pneumatic sowing technology

The Accord Pneumatic‑System – centralized metering and distribution of seed evenly to the coulters, just by blowing a current of air through a corrugated tube – was a ground breaking innovation in sowing technology. With this new sowing technology Accord launched 1968 the first pneumatic drills in working width of 5 m to 7 m. Already in 1971 Connor Shea, Australia, designed the first Air Seeder in a width of 10 m. The Pneumatic‑System was the basis for totally new fertilization and sowing methods: working time and energy input were reduced by more than 60 % and at the same time the erosion of soil by wind and water prevented. At the start of the 1980’s the second generation of Accord Pneumatic‑drills followed in a novel modular design. Users like Dutzi, Horsch, J. Deere and Väderstad constructed their special pneumatic seeding combinations with the Accord modules. Today the Accord Pneumatic-System is utilized by more than 40 companies in the world for their versatile seeding combinations.