WU Haixia,LI Xianyao,JI Yazhen,et al.Effects of Different Gangue Particle Size and Gangue Ratio on Soil Physicochemical Characteristics and Sprouting of Pakchoi[J].Northern Horticulture,2023,(11):1-8.[doi:10.11937/bfyy.20223807]
煤矸石粒径与矸土比对土壤理化特性及小白菜萌发的影响
- Title:
- Effects of Different Gangue Particle Size and Gangue Ratio on Soil Physicochemical Characteristics and Sprouting of Pakchoi
- 文献标志码:
- A
- 摘要:
- 以小白菜为试材,采用盆栽试验法,研究了不同煤矸石粒径(<0.075 mm、0.075~2 mm、2~5 mm)和不同矸土比(1∶3、1∶1、3∶1)对土壤理化特性及小白菜萌发的影响,以期为煤矸石资源化利用提供参考依据。结果表明:煤矸石粒径、矸土比及二者的交互作用对土壤的理化特性指标和小白菜萌发均有显著影响,影响程度表现为煤矸石粒径>矸土比;当矸土比一定时,随着煤矸石粒径的增加,容重和通气孔隙度随之增加,持水孔隙度和总孔隙度随之下降,当煤矸石粒径一定时,随着矸土比的增加,总孔隙度和持水孔隙度随之下降,各处理的电导率均显著高于对照,而pH均显著低于对照;不同煤矸石粒径范围内,矸土比对小白菜萌发的影响不一致,同一矸土比下,粒径越小,小白菜出苗率和存活率越高。通过隶属函数法对不同处理组合下小白菜萌发进行的综合评价,最终筛选出最接近对照的混合栽培基质配比为矸土比1∶1+小粒径煤矸石(<0.075 mm)组合。
- Abstract:
- Taking pakchoi as experimental material,the effect of different gangue particle size (<0.075 mm,0.075-2 mm,2-5 mm) and different gangue ratios (1∶3,1∶1,3∶1) on the soil physicochemical characteristics and sprouting of pakchoi were studied by using pot experiment,in order to provide reference for coal gangue resource utilization.The results showed that gangue size,gangue ratio and the interaction of the two factors had a significant effect on the soil physicochemical characteristics and sprouting of pakchoi,the degree of influence was gangue size>gangue ratio;when the gangue ratio was certain,with the increase of gangue particle size,the soil bulk density and aeration porosity increased,water-holding porosity and total porosity then decreased,when the gangue particle size was certain,with the increase of gangue ratio,the total porosity and water-holding porosity decreased,the conductivity of each treatment were significantly higher than the control,while pH was significantly lower than the control;different gangue particle size range,gangue ratio on the sprouting of pakchoi inconsistent,the same gangue ratio,the smaller the particle size,the higher the seedling rate and survival rate of pakchoi.The final selection of the closest mixed cultivation substrate ratio to the control was gangue ratio 1∶1 + gangue particle <0.075 mm by the comprehensive evaluation of the sprouting of pakchoi under different treatment combinations by the affiliation function method.
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备注/Memo
第一作者简介:武海霞(1978-),女,博士,教授,现主要从事水资源高效利用及节水灌溉等研究工作。E-mail:whx2307@126.com.责任作者:冀雅珍(1976-),女,本科,正高级工程师,现主要从事节水灌溉及水资源高效利用等研究工作。E-mail:369348883@qq.com.基金项目:河北省自然科学基金面上资助项目(D2019402151);邯郸市科学技术研究与发展计划资助项目(21422012330,19112012018);山西省水利科学技术研究与推广资助项目(2022GW019)。收稿日期:2022-09-15