JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2020, Vol. 44 ›› Issue (6): 63-70.doi: 10.3969/j.issn.1000-2006.201907049

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Effects of bio-organic and microbial fertilizers on growth and soil nutrients of Vaccinium spp. seedlings

WANG Aibin1(), SONG Huifang1, ZHANG Liuyang2, ZHANG Ming1, YANG Shiwen1, ZHANG Lingyun1,*()   

  1. 1. State Key Laboratory of Forest Cultivation and Protection of Ministry of Education, Beijing Forestry University, Beijing 100083, China
    2. Hubei Provincial Forestry Investigation and Planning Institute, Wuhan 430079, China
  • Received:2019-07-31 Revised:2019-11-05 Online:2020-11-30 Published:2020-12-07
  • Contact: ZHANG Lingyun E-mail:996716070@qq.com;lyzhang@bjfu.edu.cn

Abstract:

【Objective】This study aimed to investigate the effects of different bio-organic and microbial fertilizers on growth and soil nutrients of blueberry seedlings and screen out a suitable bio-organic fertilizer or microbial fertilizer for the growth and development of blueberry to provide a scientific basis for fertilizers and soil improvement in blueberry culture. 【Method】Considering two-year-old seedlings of blueberry variety ‘Brigita’ as test materials, we compared the effects of ferment residue (T1), EM compost (T2), Trichoderma spp. preparation (T3), Bacillus subtilis preparation (T4), and Avermectin organic fertilizer (T5) on the growth and different soil nutrients of blueberry from June to August during their growth period; there was no fertilization in the control treatment (CK). 【Result】The length and diameter growth of blueberry basal branches, dry weight of 100 leaves, leaf areas, number of basal branches, and crown width were improved remarkably under all the fertilization treatments. The content of N, P, K, soluble sugar, soluble protein, phenols, and chlorophyll in leaves also increased, barring the number of basal branches of T5 and soluble sugar content of T2 and T4 in leaves. The total N, total P, ammonium nitrogen, available K, and pH under the fertilizer treatment were lower than those under CK in the soil. However, the total K, available P, organic matters, and electrical conductivity (EC) values were higher than those under CK. The effects of Trichoderma preparation (T3) on length of blueberry basal branches, dry weight of 100 leaves, leaf areas, number of blueberry basal branches, crown width, leaf N content, leaf P content, soluble sugar content, phenol content, chlorophyll content of leaves, available K, organic matter in soil, and EC and pH of soil were the most evident. 【Conclusion】Altogether, the order of effects of different bio-organic and microbial fertilizers on the growth and soil nutrients of blueberry are as follows: T3 > T2 > T1 > T4 > T5> CK. These results also indicate that Trichoderma preparation can be used as an ideal fertilization to promote the growth of blueberry.

Key words: Vaccinium spp., bio-organic fertilizer, microbial fertilizer, principal component analysis(PCA), soil physicochemical properties

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