| Cite this article: | 刘萌,樊军,付威,等.土壤物理学2021年会议专栏-添加外源有机物料和黏土矿物对菠菜生长及土壤理化性质的影响[J].灌溉排水学报,0,():-. |
| LIU Meng,FAN Jun,FU Wei,et al.土壤物理学2021年会议专栏-添加外源有机物料和黏土矿物对菠菜生长及土壤理化性质的影响[J].灌溉排水学报,0,():-. |
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| Effects of adding exogenous organic materials and clay minerals on spinach growth and soil physicochemical properties |
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LIU Meng1, FAN Jun1, FU Wei1, LUO Ruihua1, GOU Guohua1, NIU Yuhua2
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1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Northwest A F University,Yangling;2.College of Chemistry and Chemical Engineering,Shaanxi University of Science and Technology,Xi’an
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| Abstract: |
| 【Objective】Rapidly increasing the organic matter content of coarse-textured poor soil and enhancing its stability in the soil are equally important for improving and maintaining soil fertility.【Method】In this study, spinach was selected as the test crop, and 8 treatments were set up in the experiment, including control (H0), woody peat (HW), biochar (HB), lignite (HC), humic acid (HH), woody peat + bentonite (HWb), woody peat + illite (HWa) and woody peat + kaolinite (HWg). Explore the effects of adding different exogenous organic materials and clay minerals to the coarse loessial soil on plant growth and soil physical and chemical properties.【Result】The results showed that: compared with the H0 treatment, the HW, HB, HC, and HH treatments of a single application of exogenous organic materials improved the growth, yield, and soil physical and chemical properties of spinach. The net photosynthetic rate, plant height, and leaf of spinach during the harvest period of HB treatment The area and yield were significantly increased by 21.5%, 23.5%, 69.5%, and 70.9%, and the soil organic matter and total nitrogen content during the harvest period were significantly increased by 236.2% and 20.7%; the HH treatment was significantly reduced by 16.8% during the harvest period. The output increased by only 4.7%. Compared with the HW treatment, the spinach yield of the HWb, HWa, and HWg treatments with clay minerals increased by 22.7%, 9.0%, and 9.0%, respectively, and the soil organic matter increased by 33.5%, 2.4%, and 27.0%, respectively.【Conclusion】In the treatment of a single application of organic materials, the addition of biochar has the best effect on the fertilization of coarse soil; in the treatment of adding clay minerals, the addition of 2:1 swelling and shrinking clay mineral bentonite to the growth of spinach It has a good promotion effect, can significantly improve the fertility level of coarse soil, stabilize the soil carbon pool, and has certain application and promotion value. |
| Key words: Biochar; Woody peat; Bentonite; Coarse texture; Spinach |
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