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

doi:10.3969/j.issn.1004-1524.2020.01.15

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

• Environmental Science • Previous Articles Next Articles

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 Hua^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

Abstract

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

CLC Number:

S156.93

TAO Jing, WU Qifeng, SHI Jiang, LI Songhao, GE Jiangfei, CHEN Junhui, XU Qiufang, LIANG Chenfei, QIN Hua. Impact of intercropping and arbuscular mycorrhizal fungi on soil fertility and corn yield in a newly cultivated mountain land[J]. , 2020, 32(1): 115-123.

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

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