how much of each thing do i need to mix together to make loamy soil
Be more specific--in house only or outside use? Standard potting soil is usually good enough for in house use.
research physicist figured this out look at agronorm.
if you are growing in a pot,mix together equal parts of topsoil, peat moss and vermiculite or sand and if you are growing a garden and want to plant this year,loosen your garden soil to about 6 and remove rocks as you go.go to a garden nursery and get some compost ,leaf mould or peat moss (you can buy this by the square yard at not a bad price).if you are growing tomatoes,melons or other deep root growing plants,save some of the compost to the side,about 2 shovel fulls per plant ver the garden with about 3 to 4 of compost and work it in to the top 6 of soil and every spot you are going to grow a deep root growing plant, dig a hole about 12 deep and about 12 wide and mix about half of the soil from the hole with the 2 shovel full of compost you saved and refill the hole. make sure to put down fertilizer before you plant your plants. after your garden soil has warmed,put down some mulch.hay or straw are the best for vegetables,put down about 4 to 6 on top of the soil and when it brakes down it makes the soil more rich. in the fall when all the vegetable have died, using a garden rake or hoe, pull back the soil in a row 3' to 4' wide,2 to 3 deep and the length of the garden and put down 12 of fall leafs and cover with the soil you pulled back. repeat until you have done the whole garden, in early spring most of the leafs will have broken down and then just work the leaf into the top 6 or more of soil and if you get some compost, all you need to add is about 1 to the soil and your soil should be very loamy. good luck.