浙江农业科学 ›› 2024, Vol. 65 ›› Issue (3): 600-607.DOI: 10.16178/j.issn.0528-9017.20230520
陈铭敏1(), 黄泳1, 马巧莉1, 徐雅欣1, 林立金1, 张慧芬1, 谢静2, 邓群仙1,*(
)
收稿日期:
2023-01-25
出版日期:
2024-03-11
发布日期:
2024-04-08
通讯作者:
邓群仙(1968—),女,四川资中人,教授,博士,主要从事果树栽培理论与技术研究,E-mail:1324856299@qq.com。
作者简介:
陈铭敏(1999—),女,重庆城口人,硕士,主要研究方向为枇杷优质高效生产,E-mail:980638461@qq.com。
基金资助:
CHEN Mingmin1(), HUANG Yong1, MA Qiaoli1, XU Yaxin1, LIN Lijin1, ZHANG Huifen1, XIE Jing2, DENG Qunxian1,*(
)
Received:
2023-01-25
Online:
2024-03-11
Published:
2024-04-08
摘要:
为研究海藻肥对枇杷幼苗养分吸收及转运的影响,以大五星枇杷幼苗为材料,研究叶面喷施不同稀释倍数的海藻肥对枇杷幼苗氮、磷和钾养分吸收及转运的影响。叶面喷施不同浓度海藻肥均增加了枇杷幼苗根、茎、叶和地上部分的生物量及全氮、全磷和全钾含量,且随海藻肥稀释倍数的增加呈先增后降的趋势。喷施海藻肥提高了枇杷幼苗各部位氮、磷、钾的吸收量、转运量、转运效率和转运贡献率,且均以650倍稀释液海藻肥处理效果最佳。不同浓度的海藻肥可增加枇杷幼苗地上部分的氮收获指数和根系的磷收获指数。此外,喷施海藻肥后土壤碱解氮、有效磷和速效钾含量提高,土壤pH值降低。相关性分析表明,枇杷幼苗各部分生物量及全氮、全磷、全钾含量和土壤碱解氮、有效磷、速效钾含量之间均呈显著正相关关系。喷施海藻肥能促进枇杷幼苗对氮、磷和钾的吸收和转运,以650倍稀释倍数为最佳浓度。
中图分类号:
陈铭敏, 黄泳, 马巧莉, 徐雅欣, 林立金, 张慧芬, 谢静, 邓群仙. 海藻肥对枇杷幼苗养分吸收及转运的影响[J]. 浙江农业科学, 2024, 65(3): 600-607.
CHEN Mingmin, HUANG Yong, MA Qiaoli, XU Yaxin, LIN Lijin, ZHANG Huifen, XIE Jing, DENG Qunxian. Effects of seaweed fertilizer on nutrient uptake and transport in loquat seedlings[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(3): 600-607.
海藻肥稀释倍数 | 单株生物量/g | 根冠比 | |||
---|---|---|---|---|---|
根系 | 茎秆 | 叶片 | 地上部分 | ||
0 | 0.48±0.02 c | 0.76±0.03 c | 0.85±0.06 c | 1.61±0.07 d | 0.57±0.05 ab |
450 | 0.56±0.03 b | 0.89±0.07 b | 0.94±0.07 c | 1.83±0.13 c | 0.60±0.03 a |
650 | 0.65±0.04 a | 1.06±0.07 a | 1.29±0.05 a | 2.36±0.12 a | 0.51±0.04 b |
850 | 0.64±0.03 a | 0.90±0.04 b | 1.16±0.04 b | 2.06±0.07 b | 0.55±0.01 ab |
1 050 | 0.59±0.03 ab | 0.89±0.04 b | 0.94±0.07 c | 1.83±0.08 c | 0.63±0.07 a |
表1 不同处理对枇杷幼苗生物量的影响
Table 1 Effects of different treatments on the biomass of loquat seedlings
海藻肥稀释倍数 | 单株生物量/g | 根冠比 | |||
---|---|---|---|---|---|
根系 | 茎秆 | 叶片 | 地上部分 | ||
0 | 0.48±0.02 c | 0.76±0.03 c | 0.85±0.06 c | 1.61±0.07 d | 0.57±0.05 ab |
450 | 0.56±0.03 b | 0.89±0.07 b | 0.94±0.07 c | 1.83±0.13 c | 0.60±0.03 a |
650 | 0.65±0.04 a | 1.06±0.07 a | 1.29±0.05 a | 2.36±0.12 a | 0.51±0.04 b |
850 | 0.64±0.03 a | 0.90±0.04 b | 1.16±0.04 b | 2.06±0.07 b | 0.55±0.01 ab |
1 050 | 0.59±0.03 ab | 0.89±0.04 b | 0.94±0.07 c | 1.83±0.08 c | 0.63±0.07 a |
组织 | 海藻肥 稀释倍数 | 全氮含量/ (mg·g-1) | 单株氮 吸收量/mg | 单株氮 转运量/mg | 氮转 运效率/% | 氮转运 贡献率/% | 氮收获 指数/% |
---|---|---|---|---|---|---|---|
根系 | 0 | 5.59±0.06 d | 2.67±0.16 d | 0.52±0.14 d | 23.95±6.27 d | 19.18±4.02 d | 21.01±0.41 ab |
450 | 6.11±0.37 d | 3.41±0.20 c | 1.26±0.18 c | 58.28±8.02 c | 36.71±3.15 c | 18.62±0.25 bc | |
650 | 8.55±0.28 a | 5.57±0.48 a | 3.41±0.46 a | 158.31±19.32 a | 61.14±3.02 a | 16.58±1.61 c | |
850 | 7.83±0.35 b | 4.99±0.41 a | 2.84±0.38 a | 131.70±15.89 a | 56.71±2.88 a | 19.17±1.14 b | |
1 050 | 7.01±0.33 c | 4.14±0.37 b | 1.98±0.39 b | 92.06±18.71 b | 47.59±5.32 b | 22.55±2.08 a | |
茎秆 | 0 | 3.74±0.14 d | 2.85±0.20 d | 0.34±0.14 d | 13.68±5.32 d | 11.90±4.21 d | 22.47±2.44 bc |
450 | 6.05±0.15 b | 5.39±0.27 b | 2.89±0.37 b | 115.79±18.60 b | 53.42±4.19 b | 29.44±0.41 a | |
650 | 7.69±0.20 a | 8.17±0.30 a | 5.66±0.32 a | 226.49±16.90 a | 69.32±1.57 a | 24.29±0.03 b | |
850 | 6.24±0.32 b | 5.63±0.38 b | 3.13±0.40 b | 125.33±18.17 b | 55.43±3.46 b | 21.66±1.55 bc | |
1 050 | 4.33±0.26 c | 3.85±0.14 c | 1.35±0.10 c | 53.85±4.54 c | 34.96±1.89 c | 21.01±1.23 c | |
叶片 | 0 | 8.51±0.75 d | 7.19±0.55 d | 0.75±0.53 d | 11.58±8.14 d | 10.06±6.64 d | 56.52±2.09 a |
450 | 10.13±0.44 c | 9.51±0.36 c | 3.07±0.35 c | 47.62±5.69 c | 32.19±2.67 c | 51.94±0.53 b | |
650 | 15.39±0.55 a | 19.88±1.10 a | 13.44±1.20 a | 208.94±22.23 a | 67.52±2.38 a | 59.13±1.63 a | |
850 | 13.34±1.07 b | 15.41±1.02 b | 8.97±0.98 b | 139.24±14.84 b | 58.09±2.64 b | 59.17±2.53 a | |
1 050 | 11.02±0.15 c | 10.36±0.74 c | 3.91±0.86 c | 60.98±14.68 c | 37.54±5.57 c | 56.44±3.04 a | |
地上部分 | 0 | 6.25±0.36 d | 10.03±0.35 d | 1.09±0.44 d | 12.23±4.98 d | 10.78±4.03 d | 78.99±0.41 bc |
450 | 8.14±0.27 c | 14.90±0.62 c | 5.95±0.72 c | 66.64±8.90 c | 39.87±3.30 c | 81.38±0.25 ab | |
650 | 11.91±0.28 a | 28.04±1.37 a | 19.10±1.45 a | 213.75±19.08 a | 68.05±1.93 ab | 83.42±1.61 a | |
850 | 10.23±0.65 b | 21.04±0.89 b | 12.10±1.00 b | 135.42±13.17 b | 57.43±2.46 a | 80.83±1.14 b | |
1 050 | 7.76±0.11 c | 14.21±0.60 c | 5.26±0.79 cd | 58.97±10.09 b | 36.93±3.99 c | 77.45±2.08 c |
表2 不同处理对枇杷幼苗氮吸收和转运的影响
Table 2 Effects of different treatments on nitrogen uptake and transport in loquat seedlings
组织 | 海藻肥 稀释倍数 | 全氮含量/ (mg·g-1) | 单株氮 吸收量/mg | 单株氮 转运量/mg | 氮转 运效率/% | 氮转运 贡献率/% | 氮收获 指数/% |
---|---|---|---|---|---|---|---|
根系 | 0 | 5.59±0.06 d | 2.67±0.16 d | 0.52±0.14 d | 23.95±6.27 d | 19.18±4.02 d | 21.01±0.41 ab |
450 | 6.11±0.37 d | 3.41±0.20 c | 1.26±0.18 c | 58.28±8.02 c | 36.71±3.15 c | 18.62±0.25 bc | |
650 | 8.55±0.28 a | 5.57±0.48 a | 3.41±0.46 a | 158.31±19.32 a | 61.14±3.02 a | 16.58±1.61 c | |
850 | 7.83±0.35 b | 4.99±0.41 a | 2.84±0.38 a | 131.70±15.89 a | 56.71±2.88 a | 19.17±1.14 b | |
1 050 | 7.01±0.33 c | 4.14±0.37 b | 1.98±0.39 b | 92.06±18.71 b | 47.59±5.32 b | 22.55±2.08 a | |
茎秆 | 0 | 3.74±0.14 d | 2.85±0.20 d | 0.34±0.14 d | 13.68±5.32 d | 11.90±4.21 d | 22.47±2.44 bc |
450 | 6.05±0.15 b | 5.39±0.27 b | 2.89±0.37 b | 115.79±18.60 b | 53.42±4.19 b | 29.44±0.41 a | |
650 | 7.69±0.20 a | 8.17±0.30 a | 5.66±0.32 a | 226.49±16.90 a | 69.32±1.57 a | 24.29±0.03 b | |
850 | 6.24±0.32 b | 5.63±0.38 b | 3.13±0.40 b | 125.33±18.17 b | 55.43±3.46 b | 21.66±1.55 bc | |
1 050 | 4.33±0.26 c | 3.85±0.14 c | 1.35±0.10 c | 53.85±4.54 c | 34.96±1.89 c | 21.01±1.23 c | |
叶片 | 0 | 8.51±0.75 d | 7.19±0.55 d | 0.75±0.53 d | 11.58±8.14 d | 10.06±6.64 d | 56.52±2.09 a |
450 | 10.13±0.44 c | 9.51±0.36 c | 3.07±0.35 c | 47.62±5.69 c | 32.19±2.67 c | 51.94±0.53 b | |
650 | 15.39±0.55 a | 19.88±1.10 a | 13.44±1.20 a | 208.94±22.23 a | 67.52±2.38 a | 59.13±1.63 a | |
850 | 13.34±1.07 b | 15.41±1.02 b | 8.97±0.98 b | 139.24±14.84 b | 58.09±2.64 b | 59.17±2.53 a | |
1 050 | 11.02±0.15 c | 10.36±0.74 c | 3.91±0.86 c | 60.98±14.68 c | 37.54±5.57 c | 56.44±3.04 a | |
地上部分 | 0 | 6.25±0.36 d | 10.03±0.35 d | 1.09±0.44 d | 12.23±4.98 d | 10.78±4.03 d | 78.99±0.41 bc |
450 | 8.14±0.27 c | 14.90±0.62 c | 5.95±0.72 c | 66.64±8.90 c | 39.87±3.30 c | 81.38±0.25 ab | |
650 | 11.91±0.28 a | 28.04±1.37 a | 19.10±1.45 a | 213.75±19.08 a | 68.05±1.93 ab | 83.42±1.61 a | |
850 | 10.23±0.65 b | 21.04±0.89 b | 12.10±1.00 b | 135.42±13.17 b | 57.43±2.46 a | 80.83±1.14 b | |
1 050 | 7.76±0.11 c | 14.21±0.60 c | 5.26±0.79 cd | 58.97±10.09 b | 36.93±3.99 c | 77.45±2.08 c |
组织 | 海藻肥 稀释倍数 | 全磷含量/ (mg·g-1) | 单株磷 吸收量/mg | 单株磷 转运量/mg | 磷转 运效率/% | 磷转运 贡献率/% | 磷收获 指数/% |
---|---|---|---|---|---|---|---|
根系 | 0 | 1.77±0.08 d | 0.84±0.01 d | 0.33±0.03 d | 63.59±9.92 d | 38.72±3.67 d | 16.47±0.99 b |
450 | 2.22±0.06 c | 1.24±0.07 c | 0.72±0.07 c | 141.00±21.32 c | 58.30±3.54 c | 19.23±0.85 ab | |
650 | 2.91±0.10 a | 1.89±0.09 a | 1.38±0.09 a | 268.20±30.80 a | 72.20±2.18 a | 17.81±0.64 ab | |
850 | 2.53±0.09 b | 1.61±0.14 b | 1.09±0.10 b | 211.89±4.85 b | 67.93±0.50 ab | 18.96±1.38 ab | |
1 050 | 2.45±0.13 b | 1.45±0.13 b | 0.93±0.17 b | 182.20±45.85 bc | 63.96±5.69 bc | 20.44±2.35 a | |
茎秆 | 0 | 2.78±0.09 c | 2.11±0.10 c | 0.68±0.07 c | 47.86±6.23 c | 32.29±2.84 c | 41.27±1.36 a |
450 | 2.81±0.12 c | 2.51±0.28 b | 1.08±0.35 b | 76.64±28.87 bc | 42.40±9.14 b | 38.82±1.30 ab | |
650 | 3.83±0.09 a | 4.07±0.16 a | 2.64±0.14 a | 185.14±13.72 a | 64.87±1.73 a | 38.29±0.83 b | |
850 | 3.14±0.12 b | 2.83±0.02 b | 1.40±0.06 b | 98.47±9.14 b | 49.54±2.32 b | 33.37±0.56 c | |
1 050 | 3.03±0.08 b | 2.70±0.18 b | 1.27±0.12 b | 88.64±6.72 b | 46.94±1.85 b | 38.06±1.96 b | |
叶片 | 0 | 2.56±0.07 d | 2.17±0.19 d | 0.63±0.13 d | 41.03±8.37 b | 28.93±4.22 c | 42.26±2.01 b |
450 | 2.88±0.05 c | 2.71±0.22 c | 1.17±0.32 c | 77.63±26.11 b | 42.82±8.99 b | 41.95±0.51 b | |
650 | 3.61±0.06 a | 4.67±0.15 a | 3.13±0.29 a | 205.77±38.26 a | 66.97±3.97 a | 43.90±0.20 b | |
850 | 3.50±0.14 a | 4.05±0.10 b | 2.51±0.20 b | 164.72±27.41 a | 61.95±3.98 a | 47.67±1.30 a | |
1 050 | 3.13±0.13 b | 2.94±0.17 c | 1.40±0.31 c | 92.99±29.27 b | 47.43±7.50 b | 41.50±1.50 b | |
地上部分 | 0 | 2.66±0.07 d | 4.28±0.25 d | 1.31±0.18 c | 44.27±6.51 c | 30.59±3.06 c | 83.53±0.99 a |
450 | 2.85±0.08 d | 5.22±0.49 c | 2.25±0.62 bc | 76.78±24.20 bc | 42.67±8.40 ab | 80.77±0.85 ab | |
650 | 3.71±0.07 a | 8.74±0.29 a | 5.77±0.43 a | 195.44±25.11 a | 65.99±2.86 a | 82.19±0.64 ab | |
850 | 3.34±0.13 b | 6.88±0.08 b | 3.91±0.25 ab | 132.45±15.87 ab | 56.84±3.05 ab | 81.04±1.38 ab | |
1 050 | 3.08±0.10 c | 5.64±0.30 c | 2.67±0.40 bc | 90.60±17.88 bc | 47.24±4.73 ab | 79.56±2.35 b |
表3 不同处理对枇杷幼苗磷吸收和转运的影响
Table 3 Effects of different treatments on phosphorus uptake and transport of loquat seedlings
组织 | 海藻肥 稀释倍数 | 全磷含量/ (mg·g-1) | 单株磷 吸收量/mg | 单株磷 转运量/mg | 磷转 运效率/% | 磷转运 贡献率/% | 磷收获 指数/% |
---|---|---|---|---|---|---|---|
根系 | 0 | 1.77±0.08 d | 0.84±0.01 d | 0.33±0.03 d | 63.59±9.92 d | 38.72±3.67 d | 16.47±0.99 b |
450 | 2.22±0.06 c | 1.24±0.07 c | 0.72±0.07 c | 141.00±21.32 c | 58.30±3.54 c | 19.23±0.85 ab | |
650 | 2.91±0.10 a | 1.89±0.09 a | 1.38±0.09 a | 268.20±30.80 a | 72.20±2.18 a | 17.81±0.64 ab | |
850 | 2.53±0.09 b | 1.61±0.14 b | 1.09±0.10 b | 211.89±4.85 b | 67.93±0.50 ab | 18.96±1.38 ab | |
1 050 | 2.45±0.13 b | 1.45±0.13 b | 0.93±0.17 b | 182.20±45.85 bc | 63.96±5.69 bc | 20.44±2.35 a | |
茎秆 | 0 | 2.78±0.09 c | 2.11±0.10 c | 0.68±0.07 c | 47.86±6.23 c | 32.29±2.84 c | 41.27±1.36 a |
450 | 2.81±0.12 c | 2.51±0.28 b | 1.08±0.35 b | 76.64±28.87 bc | 42.40±9.14 b | 38.82±1.30 ab | |
650 | 3.83±0.09 a | 4.07±0.16 a | 2.64±0.14 a | 185.14±13.72 a | 64.87±1.73 a | 38.29±0.83 b | |
850 | 3.14±0.12 b | 2.83±0.02 b | 1.40±0.06 b | 98.47±9.14 b | 49.54±2.32 b | 33.37±0.56 c | |
1 050 | 3.03±0.08 b | 2.70±0.18 b | 1.27±0.12 b | 88.64±6.72 b | 46.94±1.85 b | 38.06±1.96 b | |
叶片 | 0 | 2.56±0.07 d | 2.17±0.19 d | 0.63±0.13 d | 41.03±8.37 b | 28.93±4.22 c | 42.26±2.01 b |
450 | 2.88±0.05 c | 2.71±0.22 c | 1.17±0.32 c | 77.63±26.11 b | 42.82±8.99 b | 41.95±0.51 b | |
650 | 3.61±0.06 a | 4.67±0.15 a | 3.13±0.29 a | 205.77±38.26 a | 66.97±3.97 a | 43.90±0.20 b | |
850 | 3.50±0.14 a | 4.05±0.10 b | 2.51±0.20 b | 164.72±27.41 a | 61.95±3.98 a | 47.67±1.30 a | |
1 050 | 3.13±0.13 b | 2.94±0.17 c | 1.40±0.31 c | 92.99±29.27 b | 47.43±7.50 b | 41.50±1.50 b | |
地上部分 | 0 | 2.66±0.07 d | 4.28±0.25 d | 1.31±0.18 c | 44.27±6.51 c | 30.59±3.06 c | 83.53±0.99 a |
450 | 2.85±0.08 d | 5.22±0.49 c | 2.25±0.62 bc | 76.78±24.20 bc | 42.67±8.40 ab | 80.77±0.85 ab | |
650 | 3.71±0.07 a | 8.74±0.29 a | 5.77±0.43 a | 195.44±25.11 a | 65.99±2.86 a | 82.19±0.64 ab | |
850 | 3.34±0.13 b | 6.88±0.08 b | 3.91±0.25 ab | 132.45±15.87 ab | 56.84±3.05 ab | 81.04±1.38 ab | |
1 050 | 3.08±0.10 c | 5.64±0.30 c | 2.67±0.40 bc | 90.60±17.88 bc | 47.24±4.73 ab | 79.56±2.35 b |
组织 | 海藻肥 稀释倍数 | 全钾含量/ (mg·g-1) | 单株钾 吸收量/mg | 单株钾 转运量/mg | 钾转运 效率/% | 钾转运 贡献率/% | 钾收获 指数/% |
---|---|---|---|---|---|---|---|
根系 | 0 | 29.45±1.53 b | 14.08±1.35 d | 4.30±1.40 d | 44.06±14.55 d | 30.09±7.32 c | 32.33±2.82 a |
450 | 30.42±0.53 b | 17.01±1.18 c | 7.23±1.21 c | 73.99±12.59 c | 42.32±4.31 b | 29.03±1.14 a | |
650 | 36.48±1.04 a | 23.75±1.88 a | 13.97±1.92 a | 142.95±20.30 a | 58.64±3.62 a | 28.51±1.83 a | |
850 | 31.2±1.09 b | 19.86±0.92 b | 10.08±0.86 b | 103.05±8.31 b | 50.70±2.06 ab | 29.29±1.69 a | |
1 050 | 30.46±0.54 b | 17.96±0.98 bc | 8.18±1.00 bc | 83.68±10.51 bc | 45.44±3.20 b | 30.51±2.02 a | |
茎秆 | 0 | 18.15±0.85 b | 13.79±0.51 d | 1.53±0.63 c | 12.49±5.23 d | 10.97±4.26 c | 31.69±1.44 a |
450 | 18.24±0.83 b | 16.28±1.47 bc | 4.02±1.59 bc | 32.82±13.31 bc | 24.23±7.18 b | 27.77±1.69 b | |
650 | 21.02±1.34 a | 22.39±2.66 a | 10.12±2.54 a | 82.41±19.82 a | 44.77±5.66 a | 26.79±1.36 b | |
850 | 19.22±1.23 ab | 17.34±0.42 b | 5.07±0.45 b | 41.37±3.84 b | 29.23±1.93 b | 25.56±0.45 b | |
1 050 | 18.61±1.10 b | 16.55±0.5 bc | 4.29±0.61 bc | 34.98±5.28 bc | 25.84±2.97 b | 28.12±1.51 b | |
叶片 | 0 | 18.53±0.99 c | 15.72±1.88 d | 6.73±1.63 d | 74.67±16.61 d | 42.40±5.50 c | 35.98±2.53 b |
450 | 26.96±1.04 ab | 25.3±0.86 c | 16.32±1.13 c | 182.0±18.57 bc | 64.44±2.37 b | 43.21±0.92 a | |
650 | 28.83±0.61 a | 37.25±2.23 a | 28.27±2.51 a | 315.51±39.07 a | 75.80±2.16 a | 44.70±1.29 a | |
850 | 26.52±1.48 b | 30.66±2.09 b | 21.68±2.35 b | 242.01±33.49 b | 70.57±2.99 ab | 45.15±1.72 a | |
1 050 | 25.91±0.93 b | 24.41±2.65 c | 15.42±2.93 c | 172.47±38.14 c | 62.79±5.43 b | 41.37±3.46 a | |
地上部分 | 0 | 18.35±0.93 c | 29.51±2.36 d | 8.26±2.23 d | 38.84±10.33 d | 27.70±5.51 b | 67.67±2.82 a |
450 | 22.72±0.66 b | 41.58±2.02 c | 20.33±2.18 bc | 95.74±10.99 bc | 48.80±2.90 a | 70.97±1.14 a | |
650 | 25.30±0.89 a | 59.64±4.87 a | 38.39±5.04 a | 180.81±25.36 a | 64.20±3.07 a | 71.49±1.83 a | |
850 | 23.32±1.44 b | 48.00±2.50 b | 26.75±2.74 b | 126.00±14.23 b | 55.63±2.89 a | 70.71±1.69 a | |
1 050 | 22.37±0.86 b | 40.96±2.27 c | 19.71±2.51 c | 92.83±12.80 c | 47.98±3.58 a | 69.49±2.02 a |
表4 不同浓度海藻肥对枇杷幼苗钾吸收和转运的影响
Table 4 Effects of different treatments on potassium uptake and transport of loquat seedlings
组织 | 海藻肥 稀释倍数 | 全钾含量/ (mg·g-1) | 单株钾 吸收量/mg | 单株钾 转运量/mg | 钾转运 效率/% | 钾转运 贡献率/% | 钾收获 指数/% |
---|---|---|---|---|---|---|---|
根系 | 0 | 29.45±1.53 b | 14.08±1.35 d | 4.30±1.40 d | 44.06±14.55 d | 30.09±7.32 c | 32.33±2.82 a |
450 | 30.42±0.53 b | 17.01±1.18 c | 7.23±1.21 c | 73.99±12.59 c | 42.32±4.31 b | 29.03±1.14 a | |
650 | 36.48±1.04 a | 23.75±1.88 a | 13.97±1.92 a | 142.95±20.30 a | 58.64±3.62 a | 28.51±1.83 a | |
850 | 31.2±1.09 b | 19.86±0.92 b | 10.08±0.86 b | 103.05±8.31 b | 50.70±2.06 ab | 29.29±1.69 a | |
1 050 | 30.46±0.54 b | 17.96±0.98 bc | 8.18±1.00 bc | 83.68±10.51 bc | 45.44±3.20 b | 30.51±2.02 a | |
茎秆 | 0 | 18.15±0.85 b | 13.79±0.51 d | 1.53±0.63 c | 12.49±5.23 d | 10.97±4.26 c | 31.69±1.44 a |
450 | 18.24±0.83 b | 16.28±1.47 bc | 4.02±1.59 bc | 32.82±13.31 bc | 24.23±7.18 b | 27.77±1.69 b | |
650 | 21.02±1.34 a | 22.39±2.66 a | 10.12±2.54 a | 82.41±19.82 a | 44.77±5.66 a | 26.79±1.36 b | |
850 | 19.22±1.23 ab | 17.34±0.42 b | 5.07±0.45 b | 41.37±3.84 b | 29.23±1.93 b | 25.56±0.45 b | |
1 050 | 18.61±1.10 b | 16.55±0.5 bc | 4.29±0.61 bc | 34.98±5.28 bc | 25.84±2.97 b | 28.12±1.51 b | |
叶片 | 0 | 18.53±0.99 c | 15.72±1.88 d | 6.73±1.63 d | 74.67±16.61 d | 42.40±5.50 c | 35.98±2.53 b |
450 | 26.96±1.04 ab | 25.3±0.86 c | 16.32±1.13 c | 182.0±18.57 bc | 64.44±2.37 b | 43.21±0.92 a | |
650 | 28.83±0.61 a | 37.25±2.23 a | 28.27±2.51 a | 315.51±39.07 a | 75.80±2.16 a | 44.70±1.29 a | |
850 | 26.52±1.48 b | 30.66±2.09 b | 21.68±2.35 b | 242.01±33.49 b | 70.57±2.99 ab | 45.15±1.72 a | |
1 050 | 25.91±0.93 b | 24.41±2.65 c | 15.42±2.93 c | 172.47±38.14 c | 62.79±5.43 b | 41.37±3.46 a | |
地上部分 | 0 | 18.35±0.93 c | 29.51±2.36 d | 8.26±2.23 d | 38.84±10.33 d | 27.70±5.51 b | 67.67±2.82 a |
450 | 22.72±0.66 b | 41.58±2.02 c | 20.33±2.18 bc | 95.74±10.99 bc | 48.80±2.90 a | 70.97±1.14 a | |
650 | 25.30±0.89 a | 59.64±4.87 a | 38.39±5.04 a | 180.81±25.36 a | 64.20±3.07 a | 71.49±1.83 a | |
850 | 23.32±1.44 b | 48.00±2.50 b | 26.75±2.74 b | 126.00±14.23 b | 55.63±2.89 a | 70.71±1.69 a | |
1 050 | 22.37±0.86 b | 40.96±2.27 c | 19.71±2.51 c | 92.83±12.80 c | 47.98±3.58 a | 69.49±2.02 a |
海藻肥稀释倍数 | pH值 | 碱解氮含量/(mg·kg-1) | 有效磷含量/(mg·kg-1) | 速效钾含量/(mg·kg-1) |
---|---|---|---|---|
0 | 7.62±0.03 a | 61.06±0.92 c | 20.03±0.87 c | 57.46±1.09 c |
450 | 7.58±0.02 ab | 61.91±0.63 c | 22.82±1.33 b | 58.79±1.26 bc |
650 | 7.52±0.02 c | 74.13±1.32 a | 24.96±0.82 a | 61.36±0.75 a |
850 | 7.52±0.02 c | 66.28±1.48 b | 23.19±1.00 ab | 60.44±1.35 ab |
1 050 | 7.55±0.01 bc | 61.92±1.35 c | 22.09±0.44 b | 59.10±1.58 abc |
表5 土壤pH值和有效养分含量
Table 5 pH value and nutrient content of the soil
海藻肥稀释倍数 | pH值 | 碱解氮含量/(mg·kg-1) | 有效磷含量/(mg·kg-1) | 速效钾含量/(mg·kg-1) |
---|---|---|---|---|
0 | 7.62±0.03 a | 61.06±0.92 c | 20.03±0.87 c | 57.46±1.09 c |
450 | 7.58±0.02 ab | 61.91±0.63 c | 22.82±1.33 b | 58.79±1.26 bc |
650 | 7.52±0.02 c | 74.13±1.32 a | 24.96±0.82 a | 61.36±0.75 a |
850 | 7.52±0.02 c | 66.28±1.48 b | 23.19±1.00 ab | 60.44±1.35 ab |
1 050 | 7.55±0.01 bc | 61.92±1.35 c | 22.09±0.44 b | 59.10±1.58 abc |
指标 | RN | RP | RK | SN | SP | SK | RW | SW | SAN | SAP | SAK |
---|---|---|---|---|---|---|---|---|---|---|---|
RP | 0.928** | ||||||||||
RK | 0.781** | 0.779** | |||||||||
SN | 0.918** | 0.886** | 0.830** | ||||||||
SP | 0.953** | 0.895** | 0.836** | 0.944** | |||||||
SK | 0.844** | 0.880** | 0.691** | 0.873** | 0.821** | ||||||
RW | 0.874** | 0.862** | 0.654** | 0.811** | 0.820** | 0.826** | |||||
SW | 0.894** | 0.904** | 0.851** | 0.913** | 0.907** | 0.822** | 0.811** | ||||
SAN | 0.815** | 0.792** | 0.918** | 0.910** | 0.903** | 0.671** | 0.656** | 0.875** | |||
SAP | 0.809** | 0.762** | 0.582* | 0.814** | 0.828** | 0.737** | 0.591* | 0.686** | 0.688** | ||
SAK | 0.751** | 0.808** | 0.723** | 0.875** | 0.779** | 0.878** | 0.781** | 0.837** | 0.748** | 0.605* | |
pH值 | -0.834** | -0.868** | -0.590* | -0.777** | -0.797** | -0.698** | -0.907** | -0.756** | -0.688** | -0.675** | -0.862* |
表6 枇杷幼苗生物量、养分含量与土壤有效养分含量的相关性
Table 6 Correlation between loquat seedling biomass, nutrient content and soil nutrient content
指标 | RN | RP | RK | SN | SP | SK | RW | SW | SAN | SAP | SAK |
---|---|---|---|---|---|---|---|---|---|---|---|
RP | 0.928** | ||||||||||
RK | 0.781** | 0.779** | |||||||||
SN | 0.918** | 0.886** | 0.830** | ||||||||
SP | 0.953** | 0.895** | 0.836** | 0.944** | |||||||
SK | 0.844** | 0.880** | 0.691** | 0.873** | 0.821** | ||||||
RW | 0.874** | 0.862** | 0.654** | 0.811** | 0.820** | 0.826** | |||||
SW | 0.894** | 0.904** | 0.851** | 0.913** | 0.907** | 0.822** | 0.811** | ||||
SAN | 0.815** | 0.792** | 0.918** | 0.910** | 0.903** | 0.671** | 0.656** | 0.875** | |||
SAP | 0.809** | 0.762** | 0.582* | 0.814** | 0.828** | 0.737** | 0.591* | 0.686** | 0.688** | ||
SAK | 0.751** | 0.808** | 0.723** | 0.875** | 0.779** | 0.878** | 0.781** | 0.837** | 0.748** | 0.605* | |
pH值 | -0.834** | -0.868** | -0.590* | -0.777** | -0.797** | -0.698** | -0.907** | -0.756** | -0.688** | -0.675** | -0.862* |
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