| 引用本文: | 陈超帆,毛伟兵,孙玉霞,等.引黄泥沙对粘质盐土的改良和冬小麦产量的影响[J].灌溉排水学报,0,():-. |
| CHEN Chao-fan,MAO Wei-bing,SUN Yu-xia,et al.引黄泥沙对粘质盐土的改良和冬小麦产量的影响[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】为了探究引黄泥沙对粘质盐土的改良和冬小麦产量的影响,寻找适宜的配沙量。【方法】在黄河三角洲地区进行大田试验,研究不同用量的引黄泥沙对粘质盐土的土壤容重、土壤饱和导水率、土壤含水量变化、土壤含盐量变化以及小麦产量及产量构成的影响。【结果】配沙改良降低了土壤容重,且土壤容重随着配沙量的增加而降低；配沙改良提高了土壤饱和导水率,且土壤饱和导水率随着配沙量的增加呈指数型增加；配沙改良降低了0-40cm土层的土壤含水量；配沙改良降低了0-40cm土层的土壤含盐量,且在一定范围内土壤含盐量随着土壤饱和导水率的升高而降低。配沙改良后各处理的小麦产量与CK处理相比均有所提高,产量最高的是S3(15kg/m2)处理,为7530.98kg/hm2。产量构成中穗粒数对小麦产量的作用强度最强。【结论】配沙改良能够改良粘质盐土并且提高冬小麦的产量,综合比较,S3处理(15kg/m2)最为适宜。 |
| 关键词: 引黄泥沙;粘质盐土;冬小麦产量 |
| DOI： |
| 分类号:S152.7 |
| 基金项目:山东省重点研发计划项目(2019GSF109014); |
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| Effect of Yellow River Diversion Sediment on Improvement of Clayey Saline Soil and Yield of Winter Wheat Yield |
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CHEN Chao-fan,MAO Wei-bing,SUN Yu-xia,et al
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1.Shandong Agricultural University;2.Lijin Yellow River Bureau
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| Abstract: |
| 【Objective】The objective is to explore the effects of sediment from the Yellow River on the improvement of clayey saline soil and the yield of winter wheat, and to find the appropriate amount of sediment.【Method】A field experiment was conducted in the Yellow River Delta to study the effects of different amounts of sediment from the Yellow River on soil bulk density,saturated hydraulic conductivity, soil water content,soil salt content and wheat yield.【Result】The soil bulk density was reduced by sand mixing,and the soil bulk density decreased with the increase of sediment allocation.The saturated hydraulic conductivity of soil was improved by sand mixing, and the saturated hydraulic conductivity of the soil increases exponentially with the increase of the distribution of sand;Soil moisture content of 0-40cm soil layer was reduced by sand mixing. Soil salt content of 0-40cm soil layer was reduced by sand mixing, and within a certain range, the salt content of the soil was decreased with the increase of the saturated hydraulic conductivity of the soil. The wheat yield of each treatment after sand blending was improved compared with CK treatment. The highest yield was S3 (15kg/m2) treatment,which was 7530.98kg/hm2.Grain number per spike had the strongest effect on wheat yield.【Conclusion】The results showed that t sand mixing could improve the clay saline soil and increase the yield of winter wheat,and S3 treatment (15kg/m2) was the most suitable. |
| Key words: Yellow River Diversion Sediment;Clay soil;Winter wheat yield |
