宁夏盐碱地高丹草生产性能及其对土壤改良效应研究

Production Performance and Soil Improvement Effect of Sorghum bicolor × S. sudanense in Saline-alkali Area of Ningxia

  • 摘要:
    目的 筛选出适宜在宁夏银北盐碱地区域种植的高丹草(Sorghum bicolor × S. sudanense)品种,用于改良该地区盐渍化土壤。
    方法 于宁夏回族自治区石嘴山市平罗县高庄乡东风村对BL0007、BL0029、BL7001、BL海德和BL7006 5个高丹草品种进行大田试验,对其主要农艺性状、抗逆性生理指标及其种植土壤的理化性质进行系统测定,并采用灰色关联度分析法针对5个品种的9个主要农艺性状和11个主要土壤理化指标分别进行灰色评判。
    结果 ①在生产性能和适应性方面,BL海德和BL7001表现较好;②在对土壤的理化性质影响方面,BL0007和BL海德两个品种的降低土壤盐碱程度、提高土壤通气状况,以及提升土壤养分含量方面的作用表现较优。
    结论 结合灰色关联度法对5个高丹草品种进行综合评价结果,可以认为BL海德较其余品种更适宜在宁夏银北地区推广种植。

     

    Abstract:
    Objective The purpose of this experiment was to select suitable Sorghum bicolor × S. sudanense varieties for cultivation in the saline-alkali soil region of the North of Yinchuan, Ningxia, and to ameliorate the salinized soil in the area.
    Method Five varieties, namely BL0007, BL0029, BL7001, BL Haide, and BL7006, were tested by a field experiment in Dongfeng Village, Gaozhuang Township, Pingluo County, Shizuishan City, Ningxia Hui Autonomous Region. The experiment systematically measured their primary agronomic traits, physiological indices of stress resistance, and the physicochemical properties of the cultivated soil. Additionally, the grey relational analysis method was employed to evaluate the nine primary agronomic traits and eleven key soil physicochemical indices for each of the five varieties.
    Result ① In terms of production performance and adaptability, BL Haide and BL7001 exhibited superior performance in reducing the degree of soil salinization and alkalization, improving soil aeration conditions and enhancing the content of soil nutrients. ② Regarding the impact on soil physicochemical properties, BL0007 and BL Haide demonstrated significant effects in reducing soil salinity, improving soil texture and enhancing soil fertility.
    Conclusion Based on the comprehensive evaluation using the grey relational analysis method, BL Haide was found to be more suitable for promotion and cultivation in the North of Yinchuan region of Ningxia compared to the other varieties.

     

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