What Can be Done to Improve Plant Production?

[MarkFD]

I have a large area in my back yard where I've been planting tomatoes for the last 9 years. In early spring I till in some composted manure from bags. This year when I planted, I added Tomato-tone 4-7-10 to the hole with the plants. After reading other posts I trimed the lower couple branches from the bottom of the plants after they grew a couple inches. That was back in the end of May. Some of my plants have started to produce fruits and some have not. Last night I added some more composed manure around the plants.

My question is, is there other things that I can add around the plants to improve production at this stage, like grass clippings, leaves? Almost all my leaves are oak but I do put them through a shreader in the Fall and Spring. Are oak leaves too acidic for tomatoes? Thanks for any help.

[SarahFair]

My dad said never use grass clippings cause they can cause disease and it wont allow proper circulation..
Thats all I can tell you though!

[MarkFD]

Actually that helps allot because I tried that a couple years ago both for nutrients and to help stop weeds from growing around the plants. I don't know if it helped or not and the next year I tried leaves from the bottom of my compost pile.