Study Research On Artificial Cultivation Technology Ofgentiana Veitchiorun

Gentiana veitchiorum is a famous alpine flower and a traditional Chinese medicinal herb,and it is also the most widely used plant in Tibetan medicine.The present study was undertaken in 2021-2023.In this study,we used the relocated blue jade hairpin gentian in the resource garden of Tibetan Institute of Agriculture and Animal Husbandry from 2021 to 2023,and combined no fertilizer,aqueous humic acid fertilizer(nitrogen and potassium vigor type),aqueous humic acid fertilizer(growth promoting type),and potassium xanthate fertilizer on the bush diameter,branching,photosynthetic efficiency,and the growth of blue jade hairpin gentian plants without mulch,black film mulch,blue film mulch,weeding film mulch,and white film mulch,The results of the study showed that the growth of weeds in the field under the different mulch mulch types and fertilizer types were suitable for the growth of G.lanceolate,so as to provide a basis for the promotion of artificial cultivation technology and weed control in the field.The results of the study showed that:(1)Mulching is beneficial to the growth of blue jade hairpin gentian,and the results of the significant difference analysis of the clump diameter and branch growth of blue jade hairpin gentian under different mulches showed that the clump diameter and branch growth of blue jade hairpin gentian under black mulch were the best,which were 3.13 cm and about5 roots respectively,higher than other mulch treatments.(2)Different types of fertilizers had different effects on the growth of the bush diameter and branches of the blue jade hairpin gentian,with the best growth of the bush diameter and branches of the blue jade hairpin gentian with 3.02 cm and 4 roots respectively,higher than the other fertilizer types.(3)In the actual planting process,the combination of mulching and fertilizer application was mostly used,and the clump diameter and branch growth of blue jade hairpin gentian under black film mulching and application of water soluble fertilizer containing humic acid(growth promoting type)were the best,at 3.34 cm and 6 roots,respectively,which were higher than the clump diameter and branch growth under other types of mulching and fertilizer combination.(4)The photosynthetic characteristics of the plants directly reflected the growth conditions of the plants,and the photosynthesis of blue jade hairpin gentian under the mulch treatment was higher than that of blue jade hairpin gentian without mulch,and the maximum net photosynthetic rate of 15.79 μmol-m-2-s-1 was significantly higher under the treatment with humic acid water-soluble fertilizer(growth-promoting type)under black mulch than the other treatments.The minimum value of the light compensation point was 20.04 μmol-m-2-s-1 significantly lower than the other treatments,and the maximum value of the light saturation point was2812.63 μmol-m-2-s-1 significantly higher than the other treatments.(5)all the mulch treatments significantly reduced the incidence of weed,among which black mulch was more effective than other mulches in preventing and eliminating weeds and black mulch was more effective in preventing and eliminating Asteraceae weed.In conclusion,different mulches and fertilizers can promote the growth of gentian plants,but black mulch and water-soluble fertilizer containing humic acid(growth-promoting type)have significant advantages in promoting the growth of gentian plants.However,black film mulch and water soluble fertilizer containing humic acid(growth promoting type)have significant benefits in promoting the growth of blue hairpin gentian plants,and can effectively suppress the occurrence of weed species and numbers.