The invention relates to a technology of planting woads in a
saline-alkali field, namely a high-
bed shallow-furrow sparse planting method. According to the detailed process, firstly, the
saline-alkali field is modified comprehensively in a water-modifying and soil-fertilizing mode, then a
machine is used for plowing a
ridge bed, shallow furrows are raked in the middle of the
ridge bed, and woad seeds are evenly planted in the shallow furrows;
seedling thinning,
seedling supplement and intertillage weeding are carried out when the
seedling age is 1 month to 2 months, and leaf
fertilizer is dressed for one time to two times; and harvest is carried out in sunny days, and folium isatidis and
radix isatidis are collected respectively and dried. Compared with a traditional method which has the defects of being large in
workload, high in investment, long in time, poor in later-period management and protection, and easily repeating
after treatment, the technology of planting the woads in the
saline-alkali field has the advantages of being little in investment, easy to operate, time-saving, labor-saving, and not easy to repeat after modification, not only improves the use rate of the saline-alkali field, but also improves the
medical quality of the folium isatidis and the
radix isatidis, thereby improving ecumenical benefits.