不同有机肥对菜地根际土壤磷素形态及蔬菜生长的影响

doi:10.11924/j.issn.1000-6850.casb17100027

中国农学通报 ›› 2018, Vol. 34 ›› Issue (32): 90-94.doi: 10.11924/j.issn.1000-6850.casb17100027

所属专题：园艺

• 资源环境生态土壤气象 • 上一篇下一篇

不同有机肥对菜地根际土壤磷素形态及蔬菜生长的影响

余炜敏,梁嘉伟,王荣萍,廖新荣,梁雄才

广东省生态环境技术研究所/广东省农业环境综合治理重点实验室,广东省生态环境技术研究所/广东省农业环境综合治理重点实验室,广东省生态环境技术研究所/广东省农业环境综合治理重点实验室,广东省生态环境技术研究所/广东省农业环境综合治理重点实验室,广东省生态环境技术研究所/广东省农业环境综合治理重点实验室

收稿日期:2017-10-11 修回日期:2018-10-01 接受日期:2018-02-23 出版日期:2018-11-16 发布日期:2018-11-16
通讯作者: 王荣萍
基金资助:
国家科技支撑项目“城郊区环保型高效农业关键技术研究与示范”(2014BAD14B05)；省院合作“华南不同类型土壤累积态磷素生物活化关键技术研究”(2013B091500016)；广州市科技计划项目“广州市集约化菜地氮磷养分损失定量化及其阻控技术研究”(7411838757586)；广东省科技计划项目“农业面源污染综合生态防控创新能力建设”(2015B070701017)；农业面源污染防控与产地环境安全共性技术创新团队(2017LM2149)。

Organic Fertilizers Affect Phosphorus Speciation in Rhizosphere and Vegetable Growth

Received:2017-10-11 Revised:2018-10-01 Accepted:2018-02-23 Online:2018-11-16 Published:2018-11-16

摘要/Abstract

摘要： 本文以华南地区典型菜地土壤为研究对象,在田间试验条件下研究施用不同类型有机肥对菜地土壤磷素形态转化及蔬菜生长的影响。结果表明,施用有机肥和微生物有机肥均可以提高小白菜的产量,其中以有机肥2和微生物有机肥2处理增加幅度最大；2种微生物有机肥的树脂磷(Resin-P)含量显著高于有机肥和对照处理(p<0.05)；2种微生物有机肥的NaHCO₃-Pi含量显著高于有机肥2(p<0.05),而各处理间NaHCO₃-Po含量差异不显著(p>0.05)；施用有机肥和微生物有机肥均可以提高中等活性磷(NaOH提取态磷)的含量,其中微生物有机肥1 处理的NaOH-Pi含量显著高于其他处理,而各处理之间的NaOH-Po含量差异不显著。有机肥处理和微生物有机肥处理均降低了稳定态各形态磷的含量,除Residual-P外,各处理间的D.HCl-Pi、C.HCl-Pi C.HCl-Po含量差异显著(p<0.05),其中有机肥2和微生物有机肥2处理下降幅度最大。相关分析结果表明,Resin-P与NaHCO₃-Pi、NaHCO₃-P₀、NaOH-Pi之间呈极显著或显著正相关关系；NaHCO₃-Pi与NaHCO₃-P_o、NaOH-Pi之间呈极显著或显著正相关关系；NaHCO₃-Pi与C.HCl-P₀呈显著负相关关系。总的来说,施有机肥和微生物有机肥降低了稳定态磷的含量,提高了活性磷和中等活性磷的含量,尤其是微生物有机肥的效果最佳。

Abstract: This paper focuses on soil phosphorus (P) activation in vegetable field in south China. A field experiment was conducted to investigate the effects of different types of organic fertilizers on phosphorus (P) transformation and vegetable growth in typical vegetable soils, thus to provide a theoretical basis and technical support for soil P activation. The results showed that both organic fertilizer and bio- organic fertilizer application raised the yield of pakchoi (Brassica chinensis L.), and the yield increased most in the treatment of Organic II (chicken manure) and Bio-organic II (chicken manure + iron reducing bacteria), and Resin-P was significantly (P<0.05) higher in the two treatments than that in organic fertilizer treatment and CK. NaHCO3-Pi was significantly (P<0.05) higher in the two treatments than that in the treatment of Organic II, while NaHCO3-Po was not significantly (P>0.05) different between the treatments. Both organic and bio- organic fertilizer application increased NaOH-extracted P which was of medium activity. NaOH-Pi was significantly (P<0.05) higher in the treatment of Bio-organic I (peanut bran+iron-reducing bacteria) than that in other treatments, while NaOH-Po was not significantly (P>0.05) different between the treatments. Both organic fertilizer and bio-organic fertilizer application decreased stable P. Except residual-P, D.HCl-Pi, C.HCl-Pi, and C.HCl-Po were significantly (P<0.05) different between the treatments, and the largest decrease was found in the treatment of Organic II and Bio-organic II. Correlation analysis showed that resin-P was significantly (P<0.05 or P<0.01) and positively related to NaHCO3-Pi, NaHCO3-Po, and NaOH-Pi; NaHCO3-Pi was significantly (P<0.05 or P<0.01) and positively related to NaHCO3-Po and NaOH-Pi; and NaHCO3-Pi was significantly (P<0.05) and negatively related to C.HCl-Po. In summary, application of organic fertilizer and bio-organic fertilizer can lower the content of stable P but raise the content of active and medium active P, with the effect of bio-organic fertilizer being the best.

余炜敏,梁嘉伟,王荣萍,廖新荣,梁雄才. 不同有机肥对菜地根际土壤磷素形态及蔬菜生长的影响[J]. 中国农学通报, 2018, 34(32): 90-94.

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不同有机肥对菜地根际土壤磷素形态及蔬菜生长的影响

Organic Fertilizers Affect Phosphorus Speciation in Rhizosphere and Vegetable Growth

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