I really appreciated your help. I bought my house 6 years ago. The soil is clay type. I planted tomatoes, cucumber, beans, and peppers. It was fine for the first several years. Start from 3 year before, the plant grow really slow, and the edge of leaf turn yellow. The bigger plant is ok. However, if I just put the plant in when it is really small, most of them are died. I put manual, pet moss, top soil and balanced fertilizer in. I also put miracle grow in. It seems don't work.
This year, the same things happened. My plants are dying. Please help. Please let me know how I can check my soil and determine what's wrong.
Thank you so much!!