| Cite this article: | 温志豪。,曾路生,郑文魁.不同灌溉方式配合秸秆还田对设施蔬菜地土壤性质的影响[J].灌溉排水学报,,():-. |
| WEN Zhi-hao,ZENG Lu-sheng,ZHENG Wen-kui.不同灌溉方式配合秸秆还田对设施蔬菜地土壤性质的影响[J].灌溉排水学报,,():-. |
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| Effects of straw returned combined with different irrigation methods on soil aggregates and microorganisms in greenhouse vegetable soil |
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WEN Zhi-hao,ZENG Lu-sheng,ZHENG Wen-kui
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1.National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources,College of Resources and Environment,Shandong Agricultural University,Tai an;2.College of resources and environment,Qingdao agricultural university
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| Abstract: |
| With the continuous improvement of planting time, intensification degree and multiple cropping index of China"s facility agriculture, serious problems such as soil hardening, soil salinization and non-point source pollution of chemical fertilizers have emerged in China"s facility agriculture, which poses a serious threat to the development of China"s commercial vegetables. It is found that only reasonable application of organic materials and reasonable irrigation methods can effectively improve the physical and chemical properties of soil. In this paper, the effects of different organic materials (organic fertilizer + maize straw + wheat straw) on soil aggregate enzyme activity and microbial biomass were studied through field experiments under drip irrigation and border irrigation. The results showed that straw combined with organic fertilizer could significantly reduce soil bulk density, and significantly improve the distribution of soil total porosity, capillary porosity and non-capillary porosity. The application of corn straw under drip irrigation is more likely to promote the formation of >0.25mm large-grain aggregates in the soil, and the application of wheat straw under furrow irrigation is easier to form >0.25mm large-grain aggregates in the soil. The content of soil conductivity, alkaline hydrolysis nitrogen and available potassium was significantly higher than that of wheat straw, but the content of available phosphorus and organic matter in soil was higher than that of corn straw. The urease activity of soil treated with corn straw was significantly higher than that treated with wheat straw. However, the soil phosphatase and sucrase treated with wheat straw were significantly higher than those treated with corn straw. |
| Key words: Straw returning; Irrigation method ; Soil aggregates; Soil microorganism;Greenhouse vegetable |
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