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None chemical fertilizer is aimed to a sustainable farming by stopping abusing chemical fertilizer.
In developing countries,Compaction，water eutrophication are due to abuse of fertilizer.We need a more substainable way of farming so we need fallow. To make fallow more effiency, we design Soli-tick to visualize the fertility of soil and help improvement of the soil.
Soil-tick will be decomposed by edaphon after plugging into the land. Bit by bit it disappears, little by little the soil recovers.
Du jiachun Cao Jin Li jingyuan Chen jiangnan