NOVELTY - Planting nano-selenium enriched Chinese yam, comprises ploughing hardened soil, mixing ploughed soil with crushed floating tillage soil, making ridges on the soil, forming irrigation and drainage grooves between the ridges, arranging planting groove on both side surfaces of the ridge, filling mixed filler of nano-selenium and bio-organic fertilizer, paving palm leather on the mixed filler in the planting groove, planting the Chinese yam shavings in the planting groove, paving an irrigation pipeline in the planting groove, and performing conventional yam field management.    USE - The method is useful for planting nano-selenium enriched Chinese yam (claimed).    ADVANTAGE - The method is capable of easily planting Chinese yam with enriched nano-selenium, increased nutrition value, less labor intensity in a cost-effective manner, and without water logging and drought.    DETAILED DESCRIPTION - Planting nano-selenium enriched Chinese yam, comprises (1) deeply ploughing hardened soil using an atherectomy having spiral drill bit, mixing ploughed soil with crushed floating tillage soil, naturally making ridges on the soil to a depth of 40-50 cm, width of 300-400 cm and height of 30-50 cm, forming irrigation and drainage groove having width of 20-30 cm between the ridges, (2) symmetrically arranging planting groove on both side surfaces of the ridge to more than 15-50 cm wide, 120-150 cm long, and 30-50 cm of depth parallel to inner groove for excavation, laying palm bark in planting groove, then filling with mixed filler of nano-selenium and bio-organic fertilizer, (3) paving palm leather on the mixed filler placed planting groove, planting the Chinese yam shavings in the planting groove parallel to an inner groove, (4) paving an irrigation pipeline comprising a main tube and branch tube on the inner groove, connecting a main water pump with a water pump outlet through a connecting port, paving the branch tube between the planting groove, and connecting with the main pipe, and (5) performing conventional yam field management.