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[1]CHEN Wei,CUI Yaru,SUN Congjian,et al.Characteristics of Soil Nutrient Contents in the Fields of Different Cultivated Varieties of Fagopyrum tataricum Before Flowering Under Low Nitrogen Stress[J].Research of Soil and Water Conservation,2019,26(04):151-156.

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Characteristics of Soil Nutrient Contents in the Fields of Different Cultivated Varieties of Fagopyrum tataricum Before Flowering Under Low Nitrogen Stress

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 26 Number of periods: 2019 04 Page number: 151-156 Column: Public date: 2019-06-11

Title:: Characteristics of Soil Nutrient Contents in the Fields of Different Cultivated Varieties of Fagopyrum tataricum Before Flowering Under Low Nitrogen Stress

Author(s):: CHEN Wei, CUI Yaru, SUN Congjian, YANG Yang; College of Geographical Sciences, Shanxi Normal University, Linfen, Shanxi 041000, China

Keywords:: low nitrogen stress; different varieties of Fagopyrum tataricum; nutrient content

CLC:: S158.3;S517

DOI:: -

Abstract:: In order to reveal the advantages of low-nitrogen-resistant varieties of Fagopyrum tataricum under stress conditions, pot experiments were conducted to study the differences in soil nutrient contents of two varieties of Fagopyrum tataricum (DQ, low N resistance and HF, low N sensitive) under low N stress before flowering. The results showed that the two varieties were significantly different under low nitrogen treatment. The soil moisture, pH and total N content in the field of HF were 33.78%, 1.43% and 50% higher than those in the field of DQ, respectively; however, the NO₃^--N content and ammonium oxidase activity in the field of DQ were 49.2% and 97% higher than those in the field of HF. DQ may adapt to the nitrogen stress through the ways of absorbing more water, and convert more available N for plant absorption and utilization by increasing the ammonium oxidase activity. Therefore, the cultivation of Fagopyrum tataricum should consider the differences of varieties in order to increase efficiency on poor soil in the future.

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