Abstract：
In order to explore the effect of Rosa roxburghii pomace biochar on the yield and quality of Chinese cabbage and soil properties and realize the resource utilization of R. roxburghii pomace, a pot experiment was conducted to study the effect of R. roxburghii pomace biochar on the yield and quality of Chinese cabbage and soil properties by setting five biochar application rates of 0 % (CK), 1 % (T1), 3 % (T2), 5 % (T3), and 7 % (T4). The results showed that:① The application of R. roxburghii pomace biochar could significantly improve the yield and quality of Chinese cabbage, and the effect was the best at a 5 % biochar application rate. The yield, soluble solids, soluble sugar, vitamin C, total nitrogen, total phosphorus, and total potassium content of Chinese cabbage increased by 71.51 %, 40.14 %, 33.65 %, 38.08 %, 9.03 %, 28.85 %, and 35.38 %, respectively, compared with those in CK. ② The application of biochar from R. roxburghii pomace could significantly improve soil properties and increase soil nutrient content and availability. The effect was better at a 5 % biochar application rate. The soil pH, organic matter, total nitrogen, alkali-hydrolyzable nitrogen, available phosphorus, and available potassium content increased by 41.06 %, 134.84 %, 157.48 %, 140.79 %, 341.75 %, and 627.13 %, respectively, compared with those in CK. The contents of available Fe, Mn, Cu, and Zn and exchangeable Ca and Mg increased by 37.68 %, 61.69 %, 400.00 %, 4 648.84 %, 617.17 %, and 351.42 %, respectively, compared with those in CK. ③ The application of biochar from R. roxburghii pomace could significantly enhance soil enzyme activity. Compared with those in the CK treatment, soil urease, acid phosphatase, catalase, and sucrase increased by 51.43 %-362.86 %, 90.63 %-134.14 %, 21.40 %-85.12 %, and 82.92 %-218.43 %, respectively. ④ Redundancy analysis showed that soil AK; exchangeable Ca, SOM, and AP; and available Zn were the main factors affecting the yield and quality of Chinese cabbage, and there was a significant positive correlation between them. In summary, the application of R. roxburghii pomace biochar can significantly increase the yield and quality of Chinese cabbage and improve soil properties. The preparation of R. roxburghii pomace into biochar can provide a theoretical reference for the rational utilization of R. roxburghii pomace resources.
摘要：
为探讨刺梨果渣生物炭对大白菜产量、品质及土壤性质的影响,实现刺梨果渣的资源化利用,通过盆栽试验，研究了刺梨渣生物炭对大白菜产量和品质以及土壤性质的影响，1%(T1)，3%（T2），5%（T3），7%（T4）。结果表明:①施用刺梨渣生物炭能显著提高大白菜的产量和品质,生物炭施用量为5%时效果最好。产量，可溶性固体，可溶性糖，维生素C,总氮,总磷,大白菜全钾含量增加了71.51%,40.14%，33.65%,38.08%,9.03%,28.85%,和35.38%，分别,与CK相比。②施用刺梨果渣生物炭可以显著改善土壤性质，增加土壤养分含量和有效性。在5%的生物炭应用率下效果更好。土壤pH值,有机物,总氮,碱水解氮，有效磷,有效钾含量增加了41.06%，134.84%,157.48%,140.79%，341.75%,627.13%，分别,与CK相比。有效铁的含量，Mn,Cu,Zn和交换性Ca和Mg增加了37.68%，61.69%,400.00%,4648.84%，617.17%,和351.42%，分别,与CK相比。③施用刺梨果渣生物炭可显著提高土壤酶活性。与CK治疗相比，土壤脲酶，酸性磷酸酶,过氧化氢酶,蔗糖酶增长51.43%-362.86%,90.63%-134.14%，21.40%-85.12%，和82.92%-218.43%，分别。④冗余分析表明,土壤AK;交换性Ca,SOM,和AP；有效锌是影响大白菜产量和品质的主要因素，二者之间呈显著正相关。总之,应用刺梨渣生物炭可以显著提高大白菜的产量和品质，改善土壤性质。将刺梨果渣制备成生物炭,可为刺梨果渣资源的合理利用提供理论参考。
