GUO Hongbo, ZHANG Yuejin, LIANG Zongsuo, et al. The Potential of Alternative Water Logged and Dryland Conditions to Relieve the Continuous Cropping Obstacle of Panax notoginseng[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY(Natural Science), 2017, 32(1): 161-169. DOI: 10.16211/j.issn.1004-390X(n).2017.01.024
Citation: GUO Hongbo, ZHANG Yuejin, LIANG Zongsuo, et al. The Potential of Alternative Water Logged and Dryland Conditions to Relieve the Continuous Cropping Obstacle of Panax notoginseng[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY(Natural Science), 2017, 32(1): 161-169. DOI: 10.16211/j.issn.1004-390X(n).2017.01.024

The Potential of Alternative Water Logged and Dryland Conditions to Relieve the Continuous Cropping Obstacle of Panax notoginseng

  • Panax notoginseng (Burkill) F.H.Chen is one of traditional Chinese medicines that is widely used. It dislikes continuous cropping, but its suitable habitat is too narrow, which has lead to severe continuous cropping obstacle (CCO) due to the limit of farm land. The alternative water logged and dryland cropping (AWLDC) can make soil change between dry and logged conditions in different seasons, which can efficiently reduce harmful materials in soil and increase multiple crop index. It has been proven that rotations of rice and vegetables or maize can effectively relieve CCO. In this paper, how the physical and chemical characteristics of CCO soils were improved under AWLDC was introduced, including soil structure, mineral elements, organic matter, secondary salinization, enzyme activity, microbial populations and allelopathic chemicals. The effect of AWLDC on the control of pests and weed was also reviewed. Based on these analysis, we believe in that AWLDC could efficiently relieve the CCO of P. notoginseng, accompanying with rational cropping arrangement and fertilizer management.
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