My garden soil

My soil is a white to tan subsoil here in Otay Ranch. I cannot grow tomatoes or squash successfully. How can I fix the soil.

Your starting at the right spot, rich soil is fundamental to a successful garden. A good way to start is to add copious amount of organic matter to the soil. I use whatever is available in large quantities and is cheap/free - manure, shredded greenwaste. I work in 3 - 4 inches the first year and about 2 inches the following 2 years. Within 6 months you should see signigicant changes with the soil fertility improving for the 3 years. Depending on your region you may need to add lime if your soil is acidic (pacific northwest, northeast), phosphorus and/or minerals. Generally, I've read that the soil in the arid southwest is pretty fertile except that it lacks organic matter and nitrogen.

Hope this helps
Dan

SoCalDan gives some perfect advice here about your soil. The best way to improve your soil is organic materials, such as high quality compost. Cow or horse manure is good to use, but try to use some that is well-aged. You want it to sit for at least 6 months(mixing in hay is recommended) before adding to your garden.

Also, I would add that you should get your soil tested. Even though you know your soil is lacking in organic materials, it's good to get an idea of exactly what you are working with. You can pick up an inexpensive soil test kit from most garden centers.

Just my two cents:)

Thanks, I've bought a kit to test the ph but haven't done it yet.