We have to tell the people this is how HOMA farming works.
When you perform Agnihotra and YAJNYAS or other HOMAS in a garden, an atmosphere is created that is conducive to growing ad therefore attracts the nutrients, insects, microorganisms and animals that would be happy and thrive in that environment.
This of course is because Nature is so wonderful, it automatically benefits the soil and the plant, and the plant thrives.
Same thing happens when you put the ash or use Agnihotra ash water but it works more for the plants individually; by putting the ash around the individual plants or in the beds or spraying the plants, those elements that are best for that plant are attracted to it and it thrives.
Now of course we have to use proper principles of farming, basically with weeding, scarecrows or deterrents to birds and animals because they will want to eat this plant.