To select the area.
1. Select the appropriate area of the plant. Distance transforms the chemical plant have no clean water sources toxic contamination.
2. the study of the history of the area, such as a plant, what ever. The use of fertilisers and chemicals at least 3 years back.
3. Select cropping to fit the land, considering that there are Earth clay ruan. Clay End of page The deep soil, the soil is acid page. The soil is alkaline, Earth salted, etc. should consider planting that is dependent on the original.
4. the observations from plant based on the original. Collect soil samples Water analysis.