FertiSpot for the Precea precision air seeder

Structure of the FertiSpot system with granular fertiliser
The Precea precision air seeder, with FertiSpot for granular fertiliser, has a fertiliser hopper with fertiliser metering just like the traditional precision air seeder. The fertiliser metering regulates the desired application rate per hectare. This can be varied using application maps. The mineral fertiliser is transferred from the fertiliser metering system to the FertiSpot fertiliser portioning unit. The fertiliser flow, which continuously enters the scoop, is pushed together by a high-speed dosing finger and leaves the unit as a portion and is delivered as a portion to the fertiliser coulter. To ensure that the fertiliser portion is placed exactly under the seed, the metering finger is synchronised with the driving speed and the seed rate by the electronics. The special construction permits all application rates and is compatible with high driving speeds, irrespective of the fertiliser type.

Better utilisation of the fertiliser by the plant
Targeted placement of the fertiliser in the area of the seed grain leads to clearly improved nutrient utilisation, since the availability to the plant increases. Higher availability allows for a reduction in the total amount fertiliser applied per hectare. Initial investigations by the Technical University of Cologne predicted fertiliser savings of 25 % at a similar yield level.

In addition to the positive effects on environmental protection, there are further advantages for operational and work management. Direct cost savings from the reduced amounts of fertiliser required per hectare are accompanied by additional savings due to the higher output levels while sowing, since refill interruptions are reduced by 25 %. In regions with large animal stock levels, mineral fertiliser usage can be saved and the farm manure can be put to more effective use.