Long-Term Impact of N, P, K Fertilizers in Different Rates on Yield and Quality of Anisodus tanguticus (Maxinowicz) Pascher

Abstract

Anisodus tanguticus (Maxinowicz) Pascher (Solanaceae) is a traditional Chinese herb that is widely used in folklore and clinical practice. In recent years, wild populations have been severely impacted to the point of extinction due to over-harvesting and reclamation. Therefore, artificial cultivation is important to relieve the pressure of market demand and protect wild plant resources. Using a “3414” fertilization design, i.e., 3 factors (N, P, and K), 4 levels, and 14 fertilization treatments, with 3 replicates and a total of 42 experimental plots, A. tanguticus was harvested in October 2020, June 2021, August 2021, and October 2021, and the yield and alkaloid content were determined. The study aimed to provide a theoretical basis and technical reference for the standardization of A. tanguticus cultivation. Biomass accumulation and alkaloid content showed a trend of increasing and then decreasing with the application of nitrogen, phosphorus, and potassium, and the biomass accumulation was the highest at the application levels of nitrogen and phosphorus in T6 and T9 and at the application levels of medium and low potassium. The alkaloid content showed an increasing trend between October of the first year and June of the second year and a decreasing trend in the second year with the increase in the harvesting period. Yield and alkaloid yield showed a decreasing trend between October of the first year and June of the second year and an increasing trend in the second year with the increase in the harvesting period. The recommended application rates are 225–300 kg/ha2 for nitrogen, 850–960 kg/ha2 for phosphorus, and 65–85 kg/ha2 for potassium.

Predicting potential and quality distribution of Anisodus tanguticus (Maxim.) Pascher under different climatic conditions in the Qinghai–Tibet plateau

“…According to our study, this site located in the area predicted as the most suitable. The suitability of this cultivation area for A. tanguticus was confirmed by measuring both the morphology and tropine alkaloids content in the samples ( Liu et al., 2022b ; Chen et al., 2023 ). Therefore, the regions predicted in this study are likely to be good locations for developing an A. tanguticus cultivation industry.…”

“…Luckly, progress has been made in the cultivating A. tanguticus and efficient fertilization schemes have been established. However, studies of suitable growth zones and the distribution zones of alkaloids are still lacking ( Liu et al., 2022b ; Chen et al., 2023 ).…”

Complete mitochondrial genomes of edible mushrooms: features, evolution, and phylogeny

“…These indicators are the outcome of displayed gene expression, serving as an indirect method for identifying genes present in different species of edible mushrooms. (Chen et al 2023, Wijayawardene et al 2023. Morphological marker is a macroscopic identification method that enables species identification through visual observation or instrument measurement.…”