It depends what you are adding it for. If you want to improve the condition of light sandy soil add humus rich material such as compost or peat to help retain moisture .If the soil is clay or heavy add rough sand or gravel to improve drainage. In both cases fork the material in.
You can acquire a soil additive from a sewage plant and good it will be.
The soil is good for farming because it is fertile
It is a worm
It has a couple of industrial uses such as in smelting and can be used as a soil additive when crushed. The literature also makes mention of its use in finished stonework.
peat
Useful additive for potting soil, it enriches soil, and a heating source.
soil
High amounts of caffeine and sugar.
soil horizons determine the age of the soil
Lucas also makes a synthetic engine oil additive.. Yes.
The best soil for betel leaf growing plants is a rich, well drained soil with partial shade. It makes a good ground cover under tees in tropical areas.
It gives good soil for crops. It makes a good tings happens when you use dah helmet.