摘要
为研究磁化水灌溉对盐胁迫下葡萄的影响,于2021年4-10月在中国灌溉试验宁夏中心站开展田间试验,设置灌溉水矿化度及磁化处理两因素,灌溉水矿化度设四水平(S_(1)~S_(4)),磁化处理设两水平(M、N),常规水源为对照(CK),共10个处理,分析葡萄根区土壤盐分累积、葡萄生理生长及产量品质的响应特征。结果表明,在不同矿化度条件下,磁化水处理的土壤水贮存量比非磁化处理的少1.5~21.9 mm;磁化处理可降低0~20 cm土层盐分累积13.04%~29.63%。但当矿化度过高时,磁化处理对土壤水分和盐分并未有明显改善作用;盐分胁迫会影响到葡萄的枝条生长量、茎粗及叶面积,M_(CK)、MS_(1)和MS_(2)叶面积较N_(CK)、NS_(1)和NS_(2)处理分别提高了1.06%、4.55%和27.51%;磁化处理可改善葡萄的生理特性,促进光合作用、蒸腾速率及气孔导度的增加;轻度盐分胁迫可以促进葡萄产量及WUE的增加,但随着胁迫程度加深,葡萄减产显著;使用磁化水灌溉可以明显提高葡萄产量及WUE。磁化对于盐胁迫下的葡萄品质有一定促进作用,但效果并不显著。经过主成分分析,各处理对葡萄影响的综合得分从高到底为:MS_(1)>MS_(2)>MS_(CK)>NS_(CK)>MS_(3)>NS_(1)>MS_(4)>NS_(3)>NS_(2)>NS_(4)。
For a comprehensive analysis of magnetizing the influence of water irrigation on grapes under salt stress,the experiment was carried out from April to October 2021 in Ningxia central test base.The two factors of irrigation water salinity and magnetization treatment were set.The irrigation water salinity was set to four levels(S1~S4),and the magnetization treatment was set to two levels(M,N),and,the conventional water source was the control(CK).So,a total of 10 treatments were used to analyze the response characteristics of soil salinity accumulation in the root zone of grapes,physiological growth of grapes,and yield and quality.The results showed that compared to the nonmagnetization treatment,the magnetization treatment could reduce the soil water storage in the 0~100 cm soil layer by 1.5~21.9 mm,and reduce the salinity accumulation in the 0~20 cm soil layer by 13.04%~29.63%.However,when the mineralization was too high,the magnetization treatment did not significantly improve soil moisture and salinity.Salinity stress would affect the branch growth,stem diameter and leaf area of grapes.The leaf area of M_(CK),MS_(1)and MS_(2)was higher than that of N_(CK),NS_(1) and NS_(2) treatments improved by 1.06%,4.55%and 27.51%,respectively,but when the mineralization was low,magnetization could improve the physiological characteristics of grapes,promote photosynthesis,transpiration rate and stomatal conductivity,but at higher salinity stress;mild salinity stress can promote the increase in the grape output and WUE,but with the stress deepening;magnetized water irrigation can significantly increase the grape yield and WUE.Magnetization promotes grape quality under salt stress,but the effect was not significant.After a principal component analysis,the comprehensive score of the treatment on grapes ranges from high to high:MS_(1)>MS_(2)>MS_(CK)>NS_(CK)>MS_(3)>NS_(1)>MS_(4)>NS_(3)>NS_(2)>NS_(4).
作者
汤英
唐瑞
徐利岗
于浩
TANG Ying;TANG Rui;XU Li-gang;YU Hao(The Scientific Research Institute of the Water Conservancy of Ningxia,Yinchuan 750021,Ningxia,China;Guidance and Service Center for Technical Task Forces Enterprise of Ningxia,Yinchuan 750001,Ningxia,China)
出处
《中国农村水利水电》
北大核心
2023年第7期173-182,共10页
China Rural Water and Hydropower
基金
宁夏自然科学基金(2020AAC03481,2022AAC02075,2022AAC05066,2021AAC03293)
宁夏重点研发计划项目(2021BBF02012)。
关键词
磁化水灌溉
盐胁迫
设施葡萄
主成分分析法
magnetized water irrigation
salt stress
facility grape
principal component analysis method
