Soil improvement, soil adjustment , soil amendment… you can call it many things
Soil improvement is done by addding organic material to a soil to improve the physical properties of soil. You can adjust your soil to improve its ability for water retention, permeability, water infiltration, drainage, aeration and structure etc.
Coco peat, compost, shredded hay or corn husk, rice husk, sawdust, wood chippings, activated charcoal, biochar, manure (e.g cow, poultry, rabbit) etc are some organic materials that you can add to soil to adjust it
You might not always be fortunate to be an area where you will easily access rich humus soil. In some parts of Lagos you may be plagued with sandy soil and in some parts of Nigeria it’s clay soil.
Here are some things you can do to improve your soil.
Clay soil can be adjusted with especially if it is by adding sawdust. Sawdust will not only change the soil consistency, it would boost the nutrient in the soil. However, saw dust needs time to break down or else it would feed off the nitrogen your plant needs to grow, if not allowed to break down properly.
Sometime in May of 2018, i bought some plants and the soil they came it was so clayey it was always clogged. So i transplanted into my own soil. Packed all the excess soil into a wheelbarrow and mixed it an equal portion of sawdust. Then I bagged it and kept it for 3 months
When i opened the bag, the sawdust has broken down well and worms are thriving in the soil – which by the way is a good sign- . When the sawdust is still fresh in the soil worms cannot thrive in it.
For sandy soil, like sharp sand type, adjust the soil by adding some clay soil (not too much), coco peat and compost, manure etc.