The invention discloses a method of
pollution-free planting of
isatis tinctoria. The method is characterized by comprising the following steps of 1, low-temperature storage, wherein
isatis tinctoria seeds are firstly subjected to sterilization treatment and are then mixed with
organic matter fertilizer for low-temperature storage; 2, seed
germination accelerating, wherein the stored seeds are soaked into
plant nutrient liquid to be subjected to poikilothermic treatment, and high-temperature storage and low-temperature storage are repeatedly conducted for 5-6 times; 3,
soil treatment, wherein the
organic matter fertilizer is splashed to soil in early March, then the soil is subjected to deep plowing and airing, an
abamectin solution is sprayed to the soil,
lime powder is applied to the soil, then the soil is covered with transparent mulching film, then the
nutrient sterilization liquid is utilized for spraying, and finally the treated soil is subjected to
bed preparing; 4, planting, wherein the seeds after subjected to
germination accelerating are sowed to beds in late March to early April and are covered with mulching film, and the mulching film at the upper portion of planting pits are left with
breather holes; 5, daily management, wherein the
plant nutrient liquid is periodically utilized for watering, the
plant sterilization liquid is utilized for spraying, and the
organic matter fertilizer is utilized to topdress
isatis tinctoria in July and September.