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| 木醋液对土壤pH、EC与茄子叶片光合特性及根系发育的影响 |
| Effects of wood vinegar on soil pH, EC, and the photosynthetic characteristics of eggplant leaves and root development |
| 投稿时间：2019-01-28 |
| DOI：10.13254/j.jare.2019.0057 |
| 中文关键词: 木醋液，土壤pH，土壤EC，光合参数，生物量，根系特征参数 |
| 英文关键词: wood vinegar, soil pH, soil EC, photosynthetic parameters, biomass, root characteristic parameters |
| 基金项目:山西省重点研发计划重点项目（201603D2110-5） |
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| 中文摘要: |
| 为探究木醋液对土壤性质和植物生长发育的影响，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（电导率）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pH值与灌施清水处理无明显差异。灌施木醋液后土壤EC值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EC值与灌施清水处理差异不显著。生物试验表明，灌施稀释倍数小于10倍的木醋液会对茄子产生毒害作用，灌施1∶50以上的木醋液可以增强茄子叶片净光合作用，增加叶绿素含量，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的木醋液与灌施清水处理差异不显著。研究表明，浇灌适宜稀释倍数的木醋液可以调节土壤pH和EC值，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: |
| In this paper, we used wood vinegar produced during the process of preparing biochar from corn, wheat straw, and miscellaneous wood as the research material. We studied the effects of different dilutions of wood vinegar on the pH and EC of soil and on eggplant growth using a pot experiment. The results showed that, compared with clear water, the soil pH of the wood vinegar treatments increased with an increasing dilution ratio. When the ratio increased to 1:300, there was no significant difference between wood vinegar and clear water. Soil EC decreased with an increasing dilution ratio of wood vinegar. As with pH, there was no significant difference between a 1:300 dilution ratio of wood vinegar and clear water. Moreover, biological tests showed that wood vinegar with a dilution ratio less than 1:10 was toxic to eggplants, while a dilution ratio more than 1:50 could increase the net photosynthesis and chlorophyll content, and promote the growth of the eggplant. The growth-promotion effect of wood vinegar gradually decreased with an increase of the dilution ratio, there was no significant difference between water and wood vinegar when the ratio increased to 1:300. In conclusion, an appropriate dilution ratio of 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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