| 引用本文: | 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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| 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 |
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刘萌1, 樊军1, 付威1, 罗瑞华1, 苟国花1, 牛育华2
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1.西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室;2.陕西科技大学化学与化工学院
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| 摘要: |
| 【目的】快速提高粗质地贫瘠土壤的有机质量,并增强其在土壤中的稳定性,对土壤肥力提升与维持同样重要。【方法】本研究选择菠菜作为供试作物,试验设8个处理,包括对照(H0)、木本泥炭(HW)、生物炭(HB)、褐煤(HC)、腐植酸(HH)、木本泥炭+膨润土(HWb)、木本泥炭+伊利石(HWa)和木本泥炭+高岭石(HWg)。探究在粗质地黄绵土中添加不同外源有机物料和黏土矿物对植物生长和土壤理化性质的影响。【结果】结果表明：与H0处理相比,单施外源有机物料的HW、HB、HC和HH处理对菠菜生长、产量和土壤理化性质有改善作用,HB处理收获期菠菜净光合速率、株高、叶面积和产量分别显著提高了21.5%、23.5%、69.5%和70.9%,收获期土壤有机质和全氮含量分别显著增加了236.2%和20.7%；HH处理收获期土壤pH值显著降低了16.8%,菠菜产量仅提高4.7%。与HW处理相比,添加黏土矿物的HWb、HWa、HWg处理菠菜产量分别提高了22.7%、9.0%、9.0%,土壤有机质分别增加了33.5%、2.4%和27.0%。【结论】在单施有机物料的处理中,添加生物炭对粗质地土壤培肥效果最好；在添加黏土矿物的处理中,木本泥炭添施2:1型胀缩性黏土矿物膨润土对菠菜的生长具有良好促进作用,并且可显著提高粗质地土壤肥力水平,稳定土壤碳库,具有一定的应用推广价值。 |
| 关键词: 生物炭;木本泥炭;膨润土;粗质地;菠菜 |
| DOI： |
| 分类号:S156 |
| 基金项目:国家重点研发专项（2021YFC1808900）；陕西省重点研发计划（2020NY-158） |
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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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