Perhaps you should try some spelling variations:
irrigation requirements » irrigation equipment, nutrition requirements
requirements based » requirements a
based precision » based decision, based prediction, based decisions
arrays imaging » array imaging, assays imaging, pathways imaging
array arcing » array forming, array probing, array sharing
array string » array strong, arrays strings, array sharing

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: irrigation requirements based precision ((((array arcing) OR (array string))) OR (arrays imaging))~.
• Adding a wildcard symbol may retrieve word variants: irrigation requirements based precision ((((array arcing) or (array string))) or (arrays imaging))*.