A look at the color of the soil: the soil is rich in soil, and the soil is lighter.
Second, look at the depth of soil: Fertilizer soil layer is generally greater than 60 cm; and lean soil is relatively shallow.
Three to see the soil suitable for farming: the soil is loose and easy to cultivate; the lean soil layer is plowed and the farming is laborious.
Fourth, look at the soil slurry and cracks: fertilizer soil is not easy to slurry, soil cracks and more; lean soil easy to slurry, easy to compaction, soil cracks and large.
The fifth is to look at the soil water retention capacity: seepage of water under the water, irrigation can be maintained for 6-7 days as a fertilizer land; no infiltration or lean soil along the cracks soon infiltration.
Six to see the water quality: greasy water, sticky feet, when the sun or foot when the big bubble for the fat soil; water is light and colorless, paddy fields are not blistering, or small bubbles easily scattered for the lean soil.
Seven to see the phenomenon of night tide: There is a night tide, dry and wet, not easy to dry and hard for the fat soil; no night tide phenomenon, soil hardening hardening for the lean soil.
Eight to see the ability to maintain fertilizer: for fertility, for fertilizer for a long time, or potential fertility of the soil are rich soil.
Nine to see the plants: the growth of red-headed sauce, goosegrass, barnyardgrass and other soil is a loam; growth of the hairy grass, beaver grass, three-edge grass, wild orchids, wild onions and other soil are lean soil.
Ten to see animals: There are snails, loach, grasshoppers, grasshoppers, etc. for the fat soil; there are small ants, large ants, etc. mostly lean soil.
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