To improve the maintenance of soil
1. Select an area with an abundance of high land (deforestation).
2. If the soil is acid, classified as limestone grinding holders reduce acid.
3. planting bean family and plow for manure: beans beans beans Ma Sano Topiary Scythe totally etc. (various beans should be planted in Sano should grow crops).
4. a stable scrap compost fertilizer plants to help the soil structure and provide nutrients plants.
5. soil lacks phosphorus, phosphate rock fertilizers used.