I continually strive to improve the quality of the vegetables produced at the farm. The basic principle is "going organic". What this means to me is that no chemical pesticides or fertilizers are used and the water source is free from "introduced chemicals". From my experiments, it all starts with good quality seeds and importantly, good quality soil.
I experimented with different types of organic matter mixed with the soil. As long as it is organic, I am game to try with some exceptions. I have used goat manure, cow manure, decomposed vegetation as well as commercially produced organic soil mixture. To me, it is important what you add to the soil in order to have a good produce in the end.
By electing to go organic, I spray my vegetables with serai wangi juice which serves as a deterrent but I do have to do some manual tasks like manually removing the slugs and caterpillars as well as spraying them with water to reduce the "white flies".
I like to eat most of my vegetables raw so keeping it free from chemical pesticides removes the worry of ingesting harmful chemicals. To me, washing the vegetables may remove most of these chemicals but some will still remain within the vegetable itself as well as on the surface. The weirdest advise I have ever received was, in order to remove the chemical pesticides, to clean the vegetables with a mixture of water and Clorox!
After I harvest the vegetables, I will "process" the soil by mixing it with more organic matter before re-using it to plant more vegetables. I love it when I encounter earthworms as these are among soil's natural best friends.