Effect of fertilization on the yield and quality of medicine crops in Anhui Province



27 Jan 2009

2008 Annual Interpretive Summary

Effect of Fertilization on the Yield and Quality of Medicinal Crops in Anhui, 2008

Radix paeoniae (RP) and Rhizoma atractylodis macrocephalae (RAM) are famous traditional Chinese medicinal herbs in Anhui Province. Bozhou County is especially dedicated to the production of these high value herbs with 70,000 ha planted, about 10% of China’s total. In 2008, Anhui Agricultural University conducted field fertilization trials for RP and RAM.

Results from the RAM trial produced a high yield of 9,917 kg/ha using 150-120-150 kg/ha plus 22 kg zinc sulfate (ZnSO4)/ha and 22 kg B (borax)/ha. Plots omitting N, P, K, Zn, and B had 59%, 34%, 42%, 16%, and 14% less yield, respectively. In the RP experiment, relationships were defined between N application rate and crop yield, profit, and quality. The best NPK rate was 150-112-75 kg N-P2O5-K2O/ha.

Research in 2009 will continue to study the effect of N, P, and K on RP yields. Field experiments and demonstrations comparing P and K rates in RAM will also be continued. Future study will examine the effects of fertilization on water quality and nutrient leaching in soils under these herbs. Anhui-17

This project will continue in 2009.