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中国农学通报 ›› 2023, Vol. 39 ›› Issue (25): 77-83.doi: 10.11924/j.issn.1000-6850.casb2022-0764

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

配施有机替代肥及缓控肥对稻田土壤肥力的影响

刘小婷1(), 王京文2(), 杨文叶2(), 张奇春1   

  1. 1 浙江大学环境与资源学院/污染环境修复与生态健康教育部重点实验室,杭州 310058
    2 杭州市农业技术推广中心,杭州 310020
  • 收稿日期:2022-09-02 修回日期:2023-03-03 出版日期:2023-09-05 发布日期:2023-08-28
  • 通讯作者: 王京文,女,1974年出生,山东淄博人,正高级农艺师,研究生,研究方向:土肥技术研究与推广。通信地址:310020 浙江省杭州市杭海路768号 杭州农业大楼一号楼,Tel:0571-86781290,E-mail:178321449@qq.com。杨文叶,男,1980年出生,浙江绍兴人,高级农艺师,硕士研究生,研究方向:土壤肥料。通信地址:310017 杭州市上城区杭海路768号 杭州农业大楼一号楼,Tel:0571-86925572,E-mail:ywy64061687@hz.cn
  • 作者简介:
    刘小婷,女,1998年出生,四川内江人,硕士研究生,研究方向:土壤微生物。通信地址:310030 浙江大学紫金港校区农生环C座1320,E-mail:
  • 基金资助:
    浙江省自然科学基金项目“红壤性稻田土壤厌氧氨氧化耦合铁还原的微生物驱动机制研究”(LZ21C030002); 国家自然科学基金项目“稻田厌氧氨氧化的适应性调节机制及其对土壤氮气产生的调控作用研究”(41877044)

Effects of Combined Application of Organic Substituting Fertilizer and Slow Controlled Fertilizer on Soil Fertility in Paddy Field

LIU Xiaoting1(), WANG Jingwen2(), YANG Wenye2(), ZHANG Qichun1   

  1. 1 College of Environmental & Resource Science, Zhejiang University/ Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, Hangzhou 310058
    2 Hangzhou Agricultural Technology Extension Center, Hangzhou 310020
  • Received:2022-09-02 Revised:2023-03-03 Online:2023-09-05 Published:2023-08-28

摘要:

为探究配施有机替代肥、缓控肥对土壤理化性质、酶活性、微生物量及水稻产量的影响,通过田间水稻试验,设计空白对照(CK1)、配方施肥(CK2)、配施有机替代肥(C1)、洋丰包膜缓控肥替代(C2)、津大螯合缓控肥替代(C3)、万里神农有机缓控肥替代(C4)、心连心缓控肥替代(C5)、烟台龙灯缓控肥替代(C6) 8个施肥处理,通过对化学性质测定,结合土壤酶活性及微生物量等指标分析,评价不同肥料与配方肥结合对稻田土壤的培肥效果。结果表明,经过2年连续施肥,与CK1处理相比所有施肥处理的土壤有机质、碱解氮、速效磷、速效钾含量、酶活性及微生物量均有不同程度提高,不同施肥处理水稻产量显著高出CK1处理19.07%~46.58%。主成分分析与聚类分析表明,不同施肥处理下土壤肥力由高到低为配施有机替代肥>心连心缓控肥替代>津大螯合缓控肥替代>万里神农有机缓控肥替代>洋丰包膜缓控肥替代>烟台龙灯缓控肥替代>配方施肥>空白对照。配施有机替代肥和缓控肥后,土壤肥力较空白对照和配方施肥处理有所提高,其中配施有机替代肥处理对土壤肥力提升效果最好。因此,配施有机替代肥在肥料减施、增加作物产量和提高土壤肥力方面作用显著,本研究结果可为配方肥的优化提供参考。

关键词: 有机替代肥, 缓控肥, 土壤肥力, 主成分分析, 聚类分析

Abstract:

To explore the effects of organic alternative fertilizer and slow controlled fertilizer on soil physical and chemical properties, enzyme activity, microbial biomass and rice yield, the field experiment consisting of eight treatments were conducted: control (CK1), formula fertilization (CK2), organic alternative fertilizer (C1), Yangfeng coated slow controlled fertilizer (C2), Jinda chelated slow controlled fertilizer (C3), Wanli Shennong organic slow controlled fertilizer (C4), Xinlianxin slow controlled fertilizer (C5) and Yantai Longdeng slow controlled fertilizer (C6). The effects of different fertilizers combined with formulated fertilizers on paddy soil fertility were evaluated through chemical properties, soil enzyme activity and microbial biomass analysis. The results showed that the contents of soil organic matter, alkali hydrolysable nitrogen, available phosphorus, available potassium, enzyme activity and microbial biomass of C1-C6 treatments were increased compared with CK1 treatment after two years of continuous fertilization. The rice yields of C1-C6 treatments were significantly higher (19.07%-46.58%) than that of CK1 treatment. The principal component analysis and cluster analysis showed that the highest soil fertility was found in C1 treatment, followed by C5, C3, C4, C2, C6, CK2, CK1 treatment. The soil fertility of organic substitute fertilizer treatment and slow controlled fertilizer treatment was higher than that of control and formula fertilization treatments, and the soil fertility of organic alternative fertilizer treatment was the highest. The organic fertilizer plays a significant role in reducing fertilizer application, increasing crop yield and improving soil fertility. And the results of this study can provide a reference for the optimization of formula fertilizer.

Key words: organic substituting fertilizer, slow controlled fertilizer, soil fertility, principal component analysis, cluster analysis