Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (6): 1041-1045.DOI: 10.3969/j.issn.1000-2561.2019.06.001
• Crop Culture and Nutrition, Genetic Breeding • Next Articles
BEI Meirong,HUANG Yanyan,JING Yudan,CHA Zhengzao,LIN Qinghuo(),LUO Wei
Received:
2018-08-15
Revised:
2019-02-14
Online:
2019-06-25
Published:
2019-07-02
Contact:
LIN Qinghuo
CLC Number:
BEI Meirong,HUANG Yanyan,JING Yudan,CHA Zhengzao,LIN Qinghuo,LUO Wei. Short-term Effect of Different Rate of Biochar Application on Root Development of Hevea brasiliensis[J]. Chinese Journal of Tropical Crops, 2019, 40(6): 1041-1045.
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Fig. 2 Root fresh weight of various rates of biochar Different capital letters indicate statistically signi?cant differences between treatments (P<0.05); lowercase letters indicate statistically signi?cant differences in there spective root diameter (P<0.05).
处理 Treatment | 根长Root length/cm | 根表面积Root surface/cm2 | 根体积Root volume/cm3 | |||
---|---|---|---|---|---|---|
吸收根 Fine root | 非吸收根 Non-fine root | 吸收根 Fine root | 非吸收根 Non-fine root | 吸收根 Fine root | 非吸收根 Non-fine root | |
CK | 4507±812b | 188±33ab | 777±64b | 219±23a | 12.6±1.9b | 4.33±1.2a |
1% BF | 4791±1038b | 211±36ab | 911±128b | 250±43a | 16.5±2.8ab | 5.33±1.1a |
5% BF | 6865±889a | 216±19ab | 1276±93a | 268±34a | 20.5±2.2a | 6.41±1.6a |
10% BF | 4904±1209b | 163±21b | 839±89b | 220±22a | 13.3±2.1b | 4.38±0.9a |
15% BF | 2816±556c | 251±44a | 762±101b | 213±33a | 12.8±3.3b | 6.94±1.9a |
Tab. 1 Root morphology of various rates of biochar (n=6)
处理 Treatment | 根长Root length/cm | 根表面积Root surface/cm2 | 根体积Root volume/cm3 | |||
---|---|---|---|---|---|---|
吸收根 Fine root | 非吸收根 Non-fine root | 吸收根 Fine root | 非吸收根 Non-fine root | 吸收根 Fine root | 非吸收根 Non-fine root | |
CK | 4507±812b | 188±33ab | 777±64b | 219±23a | 12.6±1.9b | 4.33±1.2a |
1% BF | 4791±1038b | 211±36ab | 911±128b | 250±43a | 16.5±2.8ab | 5.33±1.1a |
5% BF | 6865±889a | 216±19ab | 1276±93a | 268±34a | 20.5±2.2a | 6.41±1.6a |
10% BF | 4904±1209b | 163±21b | 839±89b | 220±22a | 13.3±2.1b | 4.38±0.9a |
15% BF | 2816±556c | 251±44a | 762±101b | 213±33a | 12.8±3.3b | 6.94±1.9a |
处理 Treatment | 有机质 Organic matter/ (g?kg-1) | 全氮 Total nitrogen/ (g?kg-1) | 速效磷 Available phosphorus/ (mg?kg-1) | 速效钾 Available potassium/ (mg?kg-1) | 容重 Bulk density/ (g?cm-3) | pH |
---|---|---|---|---|---|---|
CK | 12.3±1.1c | 0.54±0.05b | 58.7±8.8c | 47.4±6.4c | 1.41±0.07a | 4.63±0.07c |
1% BF | 17.8±3.5c | 0.59±0.10b | 62.6±4.4c | 59.3±6.5c | 1.27±0.03b | 4.70±0.15c |
5% BF | 33.8±3.1b | 0.87 ±0.05ab | 86.2±5.2b | 138.5±27.9bc | 1.24±0.04bc | 5.29±0.30bc |
10% BF | 41.6±1.9b | 0.90±0.10a | 109.4±7.8a | 199.9±35.4ab | 1.19±0.02c | 5.95±0.22ab |
15% BF | 55.4±4.5a | 1.19±0.11a | 116.0±10.1a | 302.1±60.5a | 1.11±0.02d | 6.28±0.22a |
Tab. 2 Soil physical and chemical properties of various rates of biochar (n=6)
处理 Treatment | 有机质 Organic matter/ (g?kg-1) | 全氮 Total nitrogen/ (g?kg-1) | 速效磷 Available phosphorus/ (mg?kg-1) | 速效钾 Available potassium/ (mg?kg-1) | 容重 Bulk density/ (g?cm-3) | pH |
---|---|---|---|---|---|---|
CK | 12.3±1.1c | 0.54±0.05b | 58.7±8.8c | 47.4±6.4c | 1.41±0.07a | 4.63±0.07c |
1% BF | 17.8±3.5c | 0.59±0.10b | 62.6±4.4c | 59.3±6.5c | 1.27±0.03b | 4.70±0.15c |
5% BF | 33.8±3.1b | 0.87 ±0.05ab | 86.2±5.2b | 138.5±27.9bc | 1.24±0.04bc | 5.29±0.30bc |
10% BF | 41.6±1.9b | 0.90±0.10a | 109.4±7.8a | 199.9±35.4ab | 1.19±0.02c | 5.95±0.22ab |
15% BF | 55.4±4.5a | 1.19±0.11a | 116.0±10.1a | 302.1±60.5a | 1.11±0.02d | 6.28±0.22a |
指标 Item | 有机质 Organic matter | 全氮 Total nitrogen | 速效磷 Available phosphorus | 速效钾 Available potassium | 容重 Bulk density | pH |
---|---|---|---|---|---|---|
根重Root weight | -0.14ns | -0.10ns | -0.22ns | -0.27ns | 0.01ns | -0.27ns |
根长Root length | -0.35ns | -0.36ns | -0.32ns | -0.48ns | 0.32ns | -0.40ns |
根表面积Root surface | -0.06ns | -0.02ns | -0.11ns | -0.19ns | 0.00ns | -0.17ns |
根体积Root volume | -0.14ns | -0.10ns | -0.22ns | -0.27ns | 0.01ns | -0.27ns |
Tab. 3 Relationships between soil physical and chemical indicators and weight and morphology of fine root (n=15)
指标 Item | 有机质 Organic matter | 全氮 Total nitrogen | 速效磷 Available phosphorus | 速效钾 Available potassium | 容重 Bulk density | pH |
---|---|---|---|---|---|---|
根重Root weight | -0.14ns | -0.10ns | -0.22ns | -0.27ns | 0.01ns | -0.27ns |
根长Root length | -0.35ns | -0.36ns | -0.32ns | -0.48ns | 0.32ns | -0.40ns |
根表面积Root surface | -0.06ns | -0.02ns | -0.11ns | -0.19ns | 0.00ns | -0.17ns |
根体积Root volume | -0.14ns | -0.10ns | -0.22ns | -0.27ns | 0.01ns | -0.27ns |
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