【摘要】 为明确生物炭对黄瓜幼苗根系生化特性的影响，试验设5个生物炭（0、10、20、60和80 g/kg）栽培黄瓜处理，分别测定黄瓜幼苗根系可溶性糖、蔗糖、还原糖、可溶性蛋白、硝态氮、脯氨酸和氨基酸含量等生化指标。结果表明，基质中添加生物炭，可使黄瓜幼苗根系的可溶性糖、可溶性蛋白、硝态氮、蔗糖、还原糖、脯氨酸和氨基酸含量增加。其中，以生物炭用量为60 g/kg（B₃）时，应用效果最佳。在黄瓜出苗后25 d,B₃黄瓜幼苗根系中的可溶性糖、蔗糖、还原糖、可溶性蛋白、硝态氮、脯氨酸和氨基酸含量分别比CK增加了59.49%、62.50%、89.65%、95.95%、5.91%、86.21%和122.30%。更多还原

【Abstract】 To clarify the effects of biochar on the biochemical characteristics of the root system of cucumber seedlings, five biochar cultivation cucumber treatments（0, 10, 20, 60, and 80 g/kg） were set up in the experiment,biochemical indexes such as soluble sugar, sucrose, reducing sugar, soluble protein, nitrate nitrogen, proline content and amino acid content of cucumber seedlings were determined. The results showed that adding biochar to the substrate could increase the content of soluble sugars, sucrose, reducing sugar, soluble proteins, nitrate nitrogen, proline, and amino acid content of the roots of cucumber seedlings. Among them, the application effect is best when the dosage of biochar is 60 g/kg（B₃）. At 25 days after cucumber emergence, soluble sugar content, soluble protein content, nitrate nitrogen, sucrose, reducing sugar, proline, and amino acid in the root system of cucumber seedlings increased by 59.49%, 62.50%, 89.65%, 95.95%, 5.91%, 86.21%, and 122.30%, respectively, compared with CK.更多还原