Are these sentences gramatically correct?

[sergtab]

Please tell me, are these sentences gramatically correct? Thank you!

The Plants of tomatoes were treated with these bioagents by spraying on aerial parts of plants and watering soil near roots together.
In the experiment we used hybrid Kunero F1 of tomatoes.

 

[susiedqq]

The Plants of tomatoes were treated with these bioagents by spraying on aerial parts of plants and watering soil near roots together.

Suggestion:
The tomato plants (eliminate the prepositional phrase) were treated by aerial spraying the plants with bioagents and by watering the plants roots.

I believe this is better "parallelism."

 

[David L.]

The Plants of tomatoes were treated with these bioagents by spraying on aerial parts of plants and watering soil near roots together.

In this scientific report, preserve 'plants of tomatoes'. You are discussing bioagents and their use, and using a particular plant, tomatoes, as your example.

Plants of tomatoes were treated with these bioagents by spraying on the exposed parts of the plants, and watering soil near their roots.
or
Plants of tomatoes were treated with these bioagents by spraying on the foliage of the plants, and watering soil near their roots.
(Note: foliage refers to the leaves but not the stalks and stems. You decide whether this is accurate for your purposes.)

 

[sergtab]

susiedqq, thank you!
Please tell me, is this sentence correct?

The tomato plants were treated by spraying the bioagents on above-ground parts of plants and watering them with these bioagents.

 

[Anglika]

The tomato plants were treated by spraying the bioagents on the foliage and stems of the plants and watering them with these bioagents. In the experiment, the variety used was the hybrid Kunero F1