朱礼月, 宋卫, 刘蔚漪, 辉朝茂, 涂丹丹. 不同施肥模式对龙竹土壤酶活性及微生物的影响[J]. 云南大学学报(自然科学版), 2022, 44(2): 415-423. doi: 10.7540/j.ynu.20210027
引用本文: 朱礼月, 宋卫, 刘蔚漪, 辉朝茂, 涂丹丹. 不同施肥模式对龙竹土壤酶活性及微生物的影响[J]. 云南大学学报(自然科学版), 2022, 44(2): 415-423. doi: 10.7540/j.ynu.20210027
ZHU Li-yue, SONG Wei, LIU Wei-yi, HUI Chao-mao, TU Dang-dang. Effects of different fertilization methods on soil enzyme activity and microbial quantity in rhizosphere of Dendrocalamus giganteus Munro[J]. Journal of Yunnan University: Natural Sciences Edition, 2022, 44(2): 415-423. DOI: 10.7540/j.ynu.20210027
Citation: ZHU Li-yue, SONG Wei, LIU Wei-yi, HUI Chao-mao, TU Dang-dang. Effects of different fertilization methods on soil enzyme activity and microbial quantity in rhizosphere of Dendrocalamus giganteus Munro[J]. Journal of Yunnan University: Natural Sciences Edition, 2022, 44(2): 415-423. DOI: 10.7540/j.ynu.20210027

不同施肥模式对龙竹土壤酶活性及微生物的影响

Effects of different fertilization methods on soil enzyme activity and microbial quantity in rhizosphere of Dendrocalamus giganteus Munro

  • 摘要: 以龙竹林为研究对象,设置有机肥(A)、复合肥(B)、竹腔肥(C)、绿肥(D)、不施肥(CK)5个处理,研究其对龙竹土壤酶活性、微生物及龙竹新竹生物量的影响. 结果表明:①施肥显著影响土壤酶活性及土壤微生物含量. 施绿肥的土壤酸性磷酸酶活性(4.796 μmol·g−1·d−1)、土壤蔗糖酶活性(31.567 mg·g−1·d−1)最高,施复合肥的土壤酸性蛋白酶活性(4.461 mg·g−1·d−1)最高;②施绿肥的土壤细菌数量(1.044×108 cfu·g−1)最高,施有机肥的土壤放线菌(1.42×107 cfu·g−1)和固氮菌(4.59×105 cfu·g−1)数量最高;③施复合肥的龙竹新竹平均胸径最大(12.07 cm),新竹生物量最高(48127.18 kg·hm−2). 研究表明有机肥、绿肥有助于改善土壤酶活性和微生物量,竹腔肥在本研究中暂无显著表现,复合肥在短期内能够有效促进龙竹生长.

     

    Abstract: In order to study the soil enzyme activity of Dendrocalamus giganteus and the response of microorganisms to different treatments such as organic fertilizer, compound fertilizer, bamboo cavity fertilizer and green manure, as well as the changes of biomass of new D. giganteus bamboos were analyzed, including organic fertilizer (A), compound fertilizer (B), bamboo cavity fertilizer (C), green fertilizer (D) and CK as the control group. The results showed that: (1) Fertilization significantly affected soil enzyme activity and soil microbial content. Each fertilization treatment has a certain effect on the soil enzyme activity. Among the different fertilization treatments, the soil acid phosphatase (4.796 μmol·g−1·d−1) and soil invertase activity (31.567 mg·g−1·d−1) were the highest in the application of green manure, the soil acid protease activity (4.461 mg·g−1·d−1) with compound fertilizer was the highest. (2) The number of soil bacteria (1.044×108 cfu·g−1) applied with green manure was the highest, soil actinomycetes (1.42×107 cfu·g−1) and nitrogen-fixing bacteria (4.59×105 cfu·g−1) with organic fertilizer were the highes. (3) The average DBH (12.07 cm) and biomass (48127.18 kg·hm−2) of D. giganteus under the compound fertilizer were the largest. The results showed that organic fertilizer and green fertilizer could improve soil enzyme activity and microbial biomass. Bamboo cavity fertilizer had no significant performance in this study. Compound fertilizer could effectively promote the growth of D. giganteus in the short term.

     

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