Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2021, Vol. 37 ›› Issue (3): 36-42.doi: 10.11924/j.issn.1000-6850.casb2020-0341

Special Issue: 生物技术 玉米 烟草种植与生产

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Several Organic Fertilizers: Effects on Photosynthetic Characteristics of Maize and Soil Enzyme Activities

Zhao Xu1,2(), Song Qinghui3, Wang Xiaohui1,2, Wang Xuegang3, Feng Yuhan1,2, Sun Simiao1,2, Li Hongtao3, Chang Wei1,2(), Song Fuqiang1,2()   

  1. 1Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, School of Life Sciences Heilongjiang University, Harbin 150500
    2Key Laboratory of Ecological Restoration and Resource Utilization in the Cold Region of Heilongjiang Province, Heilongjiang University, Harbin 150080
    3Heilongjiang Qingdong Sunshine Agricultural Biotechnology Co., Ltd., Zhaodong Heilongjiang 151100
  • Received:2020-08-07 Revised:2020-10-19 Online:2021-01-25 Published:2021-01-26
  • Contact: Chang Wei,Song Fuqiang E-mail:zx18846830131@163.com;changwei77@126.com;0431sfq@163.com

Abstract:

To compare the effect of organic fertilizer and chemical fertilizer on maize production capacity, and provide scientific evidence for the application of organic fertilizer and chemical fertilizer in black soil of northeast China, in a field experiment, four kinds of organic fertilizers and traditional chemical fertilizer were applied. The yield and leaf photosynthetic characteristics of maize, soil enzyme activity and arbuscular mycorrhizal fungi (AMF) colonization were determined as research indicators. The results showed that in the treatment of super effective organic fertilizer (T4), the yield of maize was 9800 kg/hm2, which was 11.53% higher than that of traditional chemical fertilizer (CK), and reached a significant level. There was no significant difference between the yield of mushroom bran + chicken manure + humic acid organic fertilizer (T2) and CK. The photosynthetic characteristics of maize leaves in T2 and T4 treatments were higher than those of CK, increased by 32.34% (T2) and 24.10% (T4), respectively. In terms of enzyme activity, the alkaline phosphatase activity of mushroom bran + chicken manure + decomposed organic fertilizer by Bacillus subtilis (T3) was the highest, increased by 31.80% compared with that of CK. The sucrase enzyme activity under T4 treatment was the highest, increased by 30.91% compared with that of CK. Compared with CK, the four kinds of organic fertilizers significantly improved AMF colonization in maize roots and total glomalin. AMF colonization and total glomalin in T2 treatment were the highest, increased by 58.90% and 8.52%, respectively. It is indicated that super effect organic fertilizer and mushroom bran + chicken manure + humic acid organic fertilizer could reduce the application of chemical fertilizer and increase production and efficiency in replacing chemical fertilizer application.

Key words: Zea mays, organic fertilizer, photosynthetic characteristics, soil enzyme, arbuscular mycorrhizal fungi (AMF)

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