Improving yield advisory models for precision agriculture with special regards to soil compaction in maize production

Evaluating the accuracy of Decision Support System for Agrotechnology Transfer (DSSAT) and ProPlanta fertilizer advisory system for maize crop (Zea mays L.) using the 2010 and 2011 database, it was concluded that simulations led to large inaccuracies in small plot sizes (0.25 ha). However the differences between simulated and measured yields related to a research field (15.3 ha) were relatively good. The 10-year databases have also been taken into consideration. The aim of the research was to adapt the different crop system models to site-specific precision technologies by taking the soil physical parameters electrical conductivity, cone index and tillage draught force into account.