The most fundamental thing you should concentrate on and learn about garden ideas is bacteria. Plants require bacteria and fungi in the soil to achieve peak health, and healthy plants produce the healthiest food for you. Living soil, i.e., soil teeming with micro-organisms, is healthy soil. The number of worms in your soil is an indicator of how healthy it is because worms eat bacteria- so if you have a lot of infections, it means you have a lot of bacteria, and this is a perfect thing for your plants!
Are they worried about pH and other mysterious soil chemistry or nutrient imbalances? Well, foster a healthy bacterial/fungal population, and those micro-organisms will completely take care of all of that for you. It has been through much scientific study as well as by centuries of practice, that healthy plants are mostly invisible to pest insects. And there is a direct link between how dynamic a plant’s immune system is and how vital is the soil it’s grown in.
How Do You Grow Them? You Feed Them
What do soil bacteria eat? They eat organic matter- which is dead plant material- dry leaves, wood chips, grass clippings, etc. So the very best way to feed bacteria is to add these kinds of brown/dead plant material to your soil.
There are two ways to do this.
1st (and yielding the quickest results) is to mix compost into your soil. Compost is just dead plant matter that has been decomposed into tinier pieces by bacteria. And because compost has plenty of living and dead bacteria already in it, it also will have (if it is fresh compost) lots of nitrogen to feed your plants. It the best among the garden ideas.
Garden Ideas: Alternative Way
2nd option is to add mulch to the surface of your garden beds. Lots of garden ideas are there.. 6 inches minimum, to afoot, to three feet even (if you need to suppress weeds severely). This will act as a food source for those bacteria, and over time it will break down and harbor good numbers of bacteria as well as fungi. But keep in mind (now here comes some biology) when adding mulch- Dry plant matter is essentially cellulose, which is mostly carbon. Bacteria, just like you and me, are primarily of carbon and some nitrogen.
Bacteria proliferate that they will easily steal all the available nitrogen in the soil away from your plants to break down the mulch that you add. So mulching means you will also need to add extra nitrogen if you are trying to grow vegetables, at the same time, in the same space as your bacteria. Try to add something like cow manure, or sea bird guano, or blood meal, or tons of green grass clippings, or fresh kitchen scraps, in the right balance with the amount of dry mulch you lay down. It will supply the bacteria with enough nitrogen that they will then release some of it to the soil into a form your plants can then use.