浙江农业学报 ›› 2020, Vol. 32 ›› Issue (1): 115-123.DOI: 10.3969/j.issn.1004-1524.2020.01.15

• 环境科学 • 上一篇    下一篇

间作与接种丛枝菌根真菌对新垦山地玉米产量和土壤肥力的影响

陶晶1, 邬奇峰2, 石江3, 李松昊2, 葛江飞1, 陈俊辉1, 徐秋芳1, 梁辰飞1, 秦华1,*   

  1. 1. 浙江农林大学 环境与资源学院,浙江 杭州 311300;
    2. 杭州市临安区农林技术推广中心,浙江 杭州 311300;
    3. 杭州市农业科学研究院 农作物(生态)研究所,浙江 杭州 310008
  • 收稿日期:2019-08-05 出版日期:2020-01-25 发布日期:2020-03-11
  • 通讯作者: *秦华,E-mail: qinhua@zafu.edu.cn
  • 作者简介:陶晶(1994—),女,安徽滁州人,硕士研究生,主要从事土壤微生物研究。E-mail: taojing0706@163.com
  • 基金资助:
    国家自然科学基金(41671252); 杭州市科技局项目(2017-68-06)

Impact of intercropping and arbuscular mycorrhizal fungi on soil fertility and corn yield in a newly cultivated mountain land

TAO Jing1, WU Qifeng2, SHI Jiang3, LI Songhao2, GE Jiangfei1, CHEN Junhui1, XU Qiufang1, LIANG Chenfei1, QIN Hua1,*   

  1. 1. College of Environmental and Resource Sciences, Zhejiang A & F University, Hangzhou 311300, China;
    2. Agricultural and Forestry Technology Extension Centre of Lin'an District, Hangzhou City, Hangzhou 311300, China;
    3. Institute of Crop (Ecology), Hangzhou Academy of Agricultural Sciences, Hangzhou 310008, China
  • Received:2019-08-05 Online:2020-01-25 Published:2020-03-11

摘要: 在大田条件下研究丛枝菌根真菌(AMF)和不同种植模式对新垦山地玉米产量和土壤肥力的影响。采用裂区设计,以玉米(Zea mays L.)、番薯(Ipomoea batatas Lam.)、大豆(Glycine max Merr.)为供试植物,以光壁无梗囊霉(Acaulospora laevis 90034)为供试AMF,设置接种AMF和不接种2类处理,在每类处理下设置玉米单作、玉米-番薯间作、玉米-大豆间作3种种植模式,测定玉米产量、土壤养分和酶活性等指标。结果表明,间作可较玉米单作显著(P<0.05)提高玉米产量,但是否接种AMF对玉米产量没有明显影响。接种AMF后,玉米单作的土壤pH和碱解氮含量显著(P<0.05)高于间作。与不接种AMF相比,接种AMF显著(P<0.05)提高了玉米单作处理土壤>2 mm大团聚体比例,以及土壤蛋白酶和N-乙酰-β-氨基葡萄糖苷酶活性。玉米-番薯间作接种AMF后显著(P<0.05)提高了土壤脲酶、纤维二糖水解酶活性,而玉米-大豆间作接种AMF后显著(P<0.05)降低了β-葡萄糖苷酶和磷酸酶活性。冗余分析结果表明,有机质和碱解氮对土壤酶活性具有极显著影响(P<0.01)。综合来看,接种AMF条件下玉米-番薯间作能够提高作物产量、土壤有效磷含量和酶活性,对于提升新垦山地地力条件具有较好的潜力。

关键词: 新垦山地, 丛枝菌根真菌, 间作, 玉米产量, 土壤养分, 土壤酶

Abstract: In the present study, a field experiment was conducted to investigate the effect of arbuscular mycorrhizal fungi (AMF) and planting pattern on soil nutrients and corn yield. Corn (Zea mays L.), sweet potato (Ipomoea batatas Lam.) and soybean (Glycine max Merr.) were used as test plants, and Acaulospora laevis 90034 was used as the test fungal species. The experiment was set with split block design, with the main factor of AMF inoculation and interactive factor of planting pattern, such as corn monoculture (C), intercropping of corn-sweet potato (C-P) and corn-soybean (C-S) system. The results showed that intercropping significantly (P<0.05) increased the yield of corn than that of corn monoculutre, but AMF inoculation had no significant impact on it. The soil pH and available nitrogen increased significantly (P<0.05) in C by AMF inoculation. Compared with the treatments without AMF inoculation,the percentage of macroaggregates (>2 mm) was significantly (P<0.05) higher in C by AMF inoculation. AMF significantly (P<0.05) increased soil protease, acetyl glucosaminidase activities in C, and urease, cellobiohydrolase activities in C-P, but decreased β-glucosidase, phosphatase activities in C-S system. Redundancy analysis showed that soil organic matter and available nitrogen contents had significant (P<0.01) impact on soil enzyme activities. In conclusion, C-P intercropping system with AMF inoculation could improve corn yield, and increase soil available phosphorus content, as well as soil enzyme activities, thus had great potential in improving soil fertility of newly cultivated mountain land.

Key words: mountain land, arbuscular mycorrhizal fungi, intercropping, corn yield, soil nutrients, soil enzyme

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