Application of fluids

1. A method for application of a concentrate in diluted form, comprising the following steps:

transporting a concentrate from at least one concentrate container through one or a plurality of concentrate lines in the direction of at least one outlet,

diluting the concentrate with a diluent and

applying the concentrate diluted with the diluent,

wherein after an application, at least a portion of residual amounts of concentrate remaining in the concentrate lines is recycled to the at least one concentrate container, and wherein the residual amounts remaining in the at least one concentrate container after an application are determined and recorded in a memory unit that is connected to the respective at least one concentrate container.

2. The method according to claim 1 , wherein there are a plurality of concentrate containers comprising different concentrates, wherein the different concentrates can be transported via concentrate lines in the direction of the at least one outlet, wherein after an application of an individual concentrate, the residual amounts of the individual concentrate remaining in the concentrate lines are recycled to the corresponding concentrate container.

3. The method according to claim 1 , wherein there are a plurality of concentrate containers comprising different concentrates, wherein the different concentrates can be transported via concentrate lines in the direction of the at least one outlet and can flow both through joint concentrate lines that they share with at least one further concentrate or through individual concentrate lines that they do not share with a further concentrate, wherein after an application of a plurality of concentrates, the residual amounts of the respective concentrate remaining in the individual concentrate lines are recycled to the corresponding concentrate container, and the residual amounts of concentrate remaining in the joint concentrate lines are optionally recycled to one or a plurality of collecting containers.

4. The method according to claim 1 , wherein a flushing agent is used for recycling concentrate to the at least one concentrate container.

5. The method according to claim 1 , wherein the residual amounts of concentrate remaining in the concentrate lines are recycled by a gaseous flushing agent to the at least one concentrate container from which the respective concentrate was removed, and the concentrate lines are then cleaned by means of a liquid flushing agent.

6. The method according to claim 1 , wherein the recycled amounts of concentrate are taken into consideration in determining the residual amounts of concentrate.

7. The method according to claim 1 , wherein in recycling concentrate to the at least one concentrate container, flushing agent gets into the at least one concentrate container, wherein the amount of flushing agent that gets into the at least one concentrate container is determined and the composition of the concentrate in the at least one concentrate container that has been modified by the flushing agent is determined and data thereon are written into a memory unit that is connected to the respective at least one concentrate container.

8. The method according to claim 1 , wherein the concentrate is an active ingredient formulation that is applied to a field in which cultivated plants are grown.

9. The method according to claim 1 , wherein the concentrate comprises a plant protection agent selected from one or more of (an herbicide, a fungicide, or an insecticide.

10. The method according to claim 1 , wherein a diluent is present that comprises one or a plurality of nutrients for cultivated plants.

11. A device for application of a concentrate in diluted form, comprising:

at least one concentrate container comprising a concentrate, or means for connecting at least one concentrate container comprising a concentrate to the device,

a container comprising a diluent for diluting the at least one concentrate,

at least one outlet,

transporting means for transporting the at least one concentrate from the at least one concentrate container in the direction of the at least one outlet,

one or a plurality of concentrate lines through which the at least one concentrate passes when it is transported from the at least one concentrate container in the direction of the at least one outlet,

at least one pressure regulator to regulate volume flows of the diluent from its container in the direction of the at least one outlet,

a mixing element for mixing the at least one concentrate with the diluent and

means for recycling residual amounts of concentrate remaining in the concentrate lines after an application to the at least one concentrate container from which the concentrate was removed, and

at least one memory unit connected to the respective at least one concentrate container to determine and record the residual amounts remaining in the at least one concentrate container after an application.

12. The device according to claim 11 , comprising a memory unit in which the residual amount of concentrate remaining in the respective at least one concentrate container after an application of a concentrate, including the recycled amount of concentrate, is stored.

13. The device according to claim 11 , wherein the means for recycling comprises a flushing agent container comprising a flushing agent by which the residual amounts of concentrate remaining in the concentrate lines after an application can be recycled to the corresponding at least one concentrate container, wherein the composition of the concentrate in the at least one concentrate container modified by addition of the flushing agent is stored.

14. A method for application of a concentrate in diluted form, comprising the following steps:

transporting a concentrate from a plurality of concentrate containers through one or a plurality of concentrate lines in the direction of at least one outlet,

diluting the concentrate with a diluent and

applying the concentrate diluted with the diluent,

wherein after an application, at least a portion of residual amounts of concentrate remaining in the concentrate lines is recycled to the plurality of concentrate containers, wherein the plurality of concentrate containers comprise different concentrates, wherein the different concentrates can be transported via concentrate lines in the direction of the at least one outlet and can flow both through joint concentrate lines that they share with at least one further concentrate or through individual concentrate lines that they do not share with a further concentrate, wherein after an application of a plurality of concentrates, the residual amounts of the respective concentrate remaining in the individual concentrate lines are recycled to the corresponding concentrate container, and the residual amounts of concentrate remaining in the joint concentrate lines are optionally recycled to one or a plurality of collecting containers.