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中国农学通报 ›› 2020, Vol. 36 ›› Issue (29): 93-99.doi: 10.11924/j.issn.1000-6850.casb2020-0101

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

稻壳炭和沸石对赤红壤和潮土磷有效性的影响

朱婧1,2(), 白玉超1,2, 王宗抗2, 张新明1()   

  1. 1华南农业大学资源环境学院,广州 510642
    2深圳市芭田生态工程股份有限公司,广东深圳 518105
  • 收稿日期:2020-05-13 修回日期:2020-07-20 出版日期:2020-10-15 发布日期:2020-10-16
  • 通讯作者: 张新明
  • 作者简介:朱婧,女,1996年出生,湖北孝感人,在读硕士,研究方向:磷肥高效利用。通信地址:518105 广东省深圳市宝安区松岗街道江边工业区创业二路 深圳市芭田生态工程股份有限公司,Tel:0755-26955688,E-mail:513087982@qq.com
  • 基金资助:
    “十三五”国家重点研发计划课题“新型增效复混肥料研制与产业化”(2016YFD0200402)

Effects of Rice Husk Biochar and Zeolite on Phosphorus Availability in Latosolic Red Soil and Fluvo-aquic Soil

Zhu Jing1,2(), Bai Yuchao1,2, Wang Zongkang2, Zhang Xinming1()   

  1. 1College of Nature Resources and Environment, South China Agricultural University, Guangzhou 510642
    2 Shenzhen Batian Ecotypic Engineering Co., Ltd., Shenzhen Guangdong 518105
  • Received:2020-05-13 Revised:2020-07-20 Online:2020-10-15 Published:2020-10-16
  • Contact: Zhang Xinming

摘要:

本文通过研究肥料中稻壳炭和沸石添加对赤红壤与潮土中磷素有效性的影响,旨在利用稻壳炭和沸石提高磷肥在土壤中的有效性,进而减缓磷肥在土壤中的固定,提高磷肥利用率。采取室内培养试验与土壤盆栽试验相结合的方法,研究了混合肥料中稻壳炭(R)和沸石(Z)添加量、混合比例对混合肥料在两种土壤中磷素有效性的影响,以及对番茄磷肥利用率的影响。结果表明:稻壳炭和沸石总添加量和混合比例对赤红壤中有效磷含量影响显著,且其交互作用对赤红壤有效磷含量影响显著,添加量是影响赤红壤有效磷含量有关参数的主要决定因子。稻壳炭和沸石混合比例对潮土中有效磷含量影响显著,是影响潮土中有效磷含量有关参数的主要决定因子。混合肥料中添加5%~10%的沸石和稻壳炭后,番茄的磷肥利用率提高了31.05%~76.46%。与稻壳炭、沸石单独使用相比,在稻壳炭和沸石混合处理下,番茄的磷肥利用率在一定程度上有所提高。混合肥料中添加稻壳炭和沸石可以提高混合肥料在土壤中的磷素生物有效性,这对减少磷肥施用量和提高磷肥当季利用率具有积极的作用。

关键词: 稻壳炭, 沸石, 磷素有效性, 肥料利用率,

Abstract:

In this paper, the effects of rice husk biochar and zeolite addition on P availability of mixed fertilizer in latosolic red soil and fluvo-aquic soil were studied, in order to use rice husk biochar and zeolite to improve the availability of P fertilizer in soil, slow down the P fixation and improve the P utilization rate of P fertilizer. The effect of the addition amounts and combined ratios of rice husk biochar and zeolite in mixed fertilizer on P availability in soil were studied by laboratory culture experiments and field plot experiments, and P fertilizer use ratio in tomato was studied. The results showed that the addition amounts and combined ratios of rice husk biochar and zeolite had significant effects on the latosolic red soil available phosphorus content, and the available phosphorus content displayed significant interaction between addition amounts and combined ratios. The addition amount was the dominant factor that affected the latosolic red soil available P content. The combined ratios of rice husk biochar and zeolite had significant effect on the fluvo-aquic soil available P content, and they were the dominant factor on the latosolic red soil available P content. Compared with CK, the utilization ratio of P in tomato increased (31.05%-76.46%) with the mixed fertilizer added rice husk biochar and zeolite (5%-10%), P fertilizer use ration in tomato increased in the treatment of rice husk biochar and zeolite combined addition. The addition of rice husk biochar and zeolite could improve the P efficiency of the mixed fertilizer in the soil. The findings could have a positive effect on reducing the application of phosphate fertilizer and improving its utilization rate.

Key words: rice husk biochar, zeolite, Pavailability, fertilizer use ratio, phosphorus

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