We want to develop a high-yielding cropping systems where the need for tillage and herbicides is greatly reduced compared with current conventional farming systems. The cropping system include, cultivation with wide row spacing, strip sowing and band spraying, combined with the use of subsidiary crops and modern precision technology for sowing and row hoeing. The project objective is to optimize the crop sequence spring cereals - winter wheat in such a system. Subsidiary crops are introduced to compete with weeds, fix nitrogen and to generate a break crop effect by improving the environment for winter wheat roots. We test the hypotheses that herbicide usage can be reduced by 80 % in the crop sequence spring cereals - winter wheat by 80% without an increase in the amount of weeds in winter wheat, that subsidiary crops will increase winter wheat yield and that the establishment method and N dose will affect agronomic and economic performance of the cropping system.