Effects of different carrier bacterial fertilizers on growth, photosynthetic characteristics and soil nutrients of Amorpha fruticosa

doi:10.12302/j.issn.1000-2006.202204006

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2024, Vol. 48 ›› Issue (3): 81-89.doi: 10.12302/j.issn.1000-2006.202204006

Special Issue: 土壤生态修复理论与技术研究

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Effects of different carrier bacterial fertilizers on growth, photosynthetic characteristics and soil nutrients of Amorpha fruticosa

YANG Hao¹(), LIU Chao¹, ZHUANG Jiayao¹^,^*(), ZHANG Shutong², ZHANG Wentao¹, MAO Guohao¹

1. College of Forestry,Co-Innovation Center for Sustainable Forestry in Southern China,Jiangsu Province Key Laboratory of Soil and Water Conservation and Ecological Restoration,Nanjing Forestry University,Nanjing 210037,China
2. China Chemical Construction Investment Group Co., Ltd.,Beijing 102308,China

Received:2022-04-05 Revised:2023-04-27 Online:2024-05-30 Published:2024-06-14

Abstract

Abstract:

【Objective】 This study explored the effects of Serratia marcescens N1.14, X-45 bacterial fertilizer inoculated with different carrier substrates on the growth, photosynthetic characteristics, soil pH and available nutrients of Amorpha fruticosa. Based on this, bacterial fertilizer carriers that can effectively replace rare resource peat were determined in order to provide a theoretical basis for the development of microbial fertilizers.【Method】 Taking A. fruticosa seedlings as the object, the peat bacterial fertilizer (T0, CK), straw bacterial fertilizer (T1), wheat bran bacterial fertilizer (T2), straw and wheat bran as carrier bacterial fertilizer (volume ratio = 1∶1, T3), straw wheat bran and cotton seed hull as carrier bacterial fertilizer (volume ratio = 1∶1∶1, T4), and straw wheat bran and soybean cake as carrier bacterial fertilizer (volume ratio = 1∶1∶1, T5) were applied. Through comparative analysis, the effects of the application of different carrier bacterial fertilizer on the growth characteristics, photosynthetic characteristics and soil nutrients of A. fruticosa were explored, and treatment groups that can replace peat bacterial fertilizer were selected.【Result】 Compared with CK, there were three key findings. First, the growth statuses of T2, T3, T4, and T5 were significantly improved, especially T3. Second, the photosynthetic characteristic parameters of Amorpha fruticosa leaves under T1, T3, T4, and T5 improved to varying degrees. Among the gas exchange parameters, T5 had the most significant improvement effect, and T3 had the most obvious improvement effect on chlorophyll content. At the same time, the improvement effect of compound carrier bacterial fertilizer was better than that of single bacterial fertilizer. Third, the soil nutrient content of A. fruticosa under T3, T4, and T5 treatments increased.【Conclusion】 The straw, wheat bran and soybean cake as carrier bacterial fertilizers can promote the growth and development of A. fruticosa, improve photosynthetic characteristics, optimize the soil nutrient environment, improve soil fertility, and effectively replace peat carrier bacterial fertilizer.

Key words: microbial fertilizer, Amorpha fruticosa, growth characteristics, photosynthetic characteristics, soil nutrient

CLC Number:

S718.83

YANG Hao, LIU Chao, ZHUANG Jiayao, ZHANG Shutong, ZHANG Wentao, MAO Guohao. Effects of different carrier bacterial fertilizers on growth, photosynthetic characteristics and soil nutrients of Amorpha fruticosa[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2024, 48(3): 81-89.

Figures/Tables 6

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编号 No.	处理 treatment	组成(体积比) composition(V∶V)
T0	泥炭(CK)	泥炭100%
T1	秸秆	秸秆100%
T2	麦麸	麦麸100%
T3	配方1	V_秸秆∶V_麦麸(1∶1)
T4	配方2	V_秸秆∶V_麦麸∶V_棉籽壳(1∶1∶1)
T5	配方3	V_秸秆∶V_麦麸∶V_豆饼(1∶1∶1)

处理 treatment	鲜质量/g fresh weight	干质量/g dry weight	株高/cm plant height	茎粗/mm stem diameter
T0	5.24±0.16 c	3.14±0.06 d	24.75±2.07 b	5.01±0.18 b
T1	5.58±0.34 c	3.24±0.08 d	19.67±1.67 c	4.74±0.21 b
T2	6.16±0.16 b	3.55±0.11 c	27.56±3.41 b	5.15±0.36 b
T3	7.46±0.24 a	4.59±0.09 a	32.09±2.42 a	5.81±0.12 a
T4	5.56±0.26 c	3.19±0.18 d	25.45±2.38 b	5.54±0.19 a
T5	7.13±0.25 a	4.42±0.07 b	27.79±1.25 b	5.03±0.15 b

处理 treatment	根长/cm root length	根表面积/cm² root area	根体积/cm³ root volume	尖端数 tip number	分蘖数 till number	干质量/g dry weight
T0	465.67±28.49 d	84.14±8.47 d	0.98±0.09 d	2 231.33±239.44 c	3 438.67±228.52 d	1.90±0.08 d
T1	476.18±34.10 d	87.09±7.17 d	0.99±0.07 d	1 967.33±118.75 c	2 620.33±269.73 e	2.00±0.07 cd
T2	869.18±46.85 c	108.76±7.69 c	1.62±0.12 b	3 289.33±238.71 b	4 985.67±147.31 c	2.17±0.10 ab
T3	1 376.71±75.05 a	191.75±7.65 a	2.51±0.17 a	3 444.00±256.29 b	5 015.33±333.68 b	2.27±0.07 a
T4	1 166.23±46.20 b	156.07±9.30 b	1.67±0.08 b	4 142.33±262.80 a	6 690.67±221.89 a	2.24±0.06 ab
T5	881.88±62.19 c	145.81±10.87 b	1.34±0.08 c	3 448.00±301.38 b	5 212.33±159.76 b	2.09±0.10 bc

Effects of different carrier bacterial fertilizers on growth, photosynthetic characteristics and soil nutrients of Amorpha fruticosa

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