文章摘要
木醋液对土壤pH、Ec、茄子叶片光合特性及根系发育的影响
Effects of wood vinegar on soil pH, Ec, photosynthetic characteristics of eggplant leaves and root development
投稿时间:2019-01-28  修订日期:2019-03-15
DOI:
中文关键词: 木醋液  茄子  光合参数  生物量  根系特征参数
英文关键词: wood vinegar  eggplant  photosynthetic parameters  biomass  root characteristic parameters
基金项目:山西省重点研发项目“主要农业生态区域农业面源污染防止关键技术研究与集成示范”(201603D2110-5)资助的课题。
作者单位邮编
常青 山西大学生物工程学院 030006
王永亮 山西省农业科学院农业环境与资源研究所 
杨治平* 山西省农业科学院农业环境与资源研究所 030031
黄高鉴 山西省农业科学院农业环境与资源研究所 
郭彩霞 山西省农业科学院农业环境与资源研究所 
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中文摘要:
      本研究以玉米、小麦秸秆和杂木在制备生物炭过程中产生的木醋液为研究材料,通过盆栽试验,研究了灌施不同稀释倍数的木醋液对土壤pH、Ec和茄子生长发育的影响。结果表明,与灌施清水相比,土壤pH值随着木醋液稀释倍数的增大而增大,当稀释倍数增大到1:300时与灌施清水处理的之间无明显差异。灌施木醋液后土壤电导率随着木醋液稀释倍数的增大而减小,当稀释倍数增大到1:300时与灌施水的处理差异不显著。生物试验表明,灌施稀释倍数小于1:10倍的木醋液对茄子产生毒害作用,灌施1:50倍以上的木醋液可以增大茄子叶片净光合作用,叶绿素含量、促进茄子的生长发育和根系生长。木醋液对作物的促进作用随着灌施木醋液稀释倍数的增加逐渐减弱,灌施稀释倍数1:300倍的木醋液与灌水处理不存在显著性差异。结论:浇灌适宜稀释倍数的木醋液可以调节土壤pH和Ec值,能促进茄子生长,这为木醋液在蔬菜种植中的应用推广提供了参考。
英文摘要:
      Abstract In this paper, we took wood vinegar produced in the process of preparing biochar from corn, wheat straw and miscellaneous wood as research material, which was the by-product of making biochar by corn, wheat straw and miscellaneous wood. We studied the effects of different dilutions of wood vinegar on pH and Ec of soil and eggplant growth.We studied the effects of different concentrations of wood vinegar on soil pH , Ec of and eggplant growth by pot experiment. The results showed that, compared with clear water, soil pH of wood vinegar treatments increased with increasing dilution ratio. When the ratio increased to1:300, there was no significant difference between wood vinegar and clear water. Soil Ec decreased with the increaseing dilution ratio of wood vinegar. Same as pH, there was no significant difference between 1:300 dilution ratio of wood vinegar and clear water. Moreover, the biological tests have shown that wood vinegar with a dilution ratio less than 1:10 was toxic to eggplant,while with a dilution ratio more than 1:50 could increase the net photosynthesis, chlorophyll content and promote the growth of eggplant. The promotion effect of wood vinegar gradually decreased with the increase of dilution ratio,there was no significant difference between water and wood vinegar when the ratio increased to 1:300. In conclusion, appropriate dilution ratioof wood vinegar could promote eggplant growth and adjust soil pH and Ec。 This would provide a scientific reference for the application and promotion of wood vinegar in vegetable planting.
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