浙江农业学报 ›› 2025, Vol. 37 ›› Issue (6): 1301-1308.DOI: 10.3969/j.issn.1004-1524.20241073

• 环境科学 • 上一篇    下一篇

化肥减量配施土壤改良剂对土壤酸度、土壤养分和水稻产量的影响

张智1(), 何豪豪1, 郁妙1, 许剑锋2   

  1. 1.台州市农业技术推广中心,浙江 台州 318099
    2.临海市农业技术推广中心,浙江 临海 317099
  • 收稿日期:2024-12-09 出版日期:2025-06-25 发布日期:2025-07-08
  • 作者简介:张智(1982—),男,浙江台州人,硕士,农艺师,主要从事植物营养与土壤改良技术研究。E-mail:zzlz@zju.edu.cn
  • 基金资助:
    国家自然科学基金(42077088);台州市科技特派员项目(2022012)

Effects of chemical fertilizer reduction combined with soil conditioner on soil acidity, soil nutrients and rice yield

ZHANG Zhi1(), HE Haohao1, YU Miao1, XU Jianfeng2   

  1. 1. Taizhou Agricultural Technology Extension Center, Taizhou 318099, Zhejiang, China
    2. Linhai Agricultural Technology Extension Center, Linhai 317099, Zhejiang, China
  • Received:2024-12-09 Online:2025-06-25 Published:2025-07-08

摘要: 采用连续3 a的田间定位试验,研究化肥减量配施不同土壤改良剂在阻控农田土壤酸化、提高水稻产量上的效果。试验共设置9个处理:CK,不施肥;CF,农民习惯施肥;RF,化肥减量;T1,化肥减量+猪粪;T2,化肥减量+石灰;T3,化肥减量+农巧施土壤改良剂;T4,化肥减量+有机土壤改良剂;T5,化肥减量+丰收延土壤改良剂;T6,化肥减量+高钙土壤改良剂。结果表明:与CF处理相比,T1~T6处理的土壤pH值显著(P<0.05)升高0.44~1.39,土壤交换性H+、交换性Al3+含量和交换性酸总量分别显著降低22.8%~39.7%、33.3%~69.4%、30.8%~60.4%,土壤交换性Ca2+含量、阳离子交换量、交换性盐基离子总量和盐基饱和度分别显著增长63.2%~120.5%、9.8%~18.5%、56.4%~95.4%、42.2%~66.5%;T1、T4、T5处理的早稻产量分别显著提高了20.5%、16.7%、9.9%。综合考虑土壤酸化阻控和水稻增产效应,化肥减量+有机土壤改良剂(3 000 kg·hm-2)是该试验条件下较理想的土壤改良模式。

关键词: 化肥减量, 土壤改良剂, 土壤酸化, 土壤养分, 水稻产量

Abstract:

The effect of chemical fertilizer reduction combined with different soil conditioners on soil acidification and rice yield were studied via a 3-year stationary field experiment. There were 9 fertilization treatments: CK, no fertilization; CF, conventional chemical fertilizaiton; RF, chemical fertilizer reduction; T1, RF+swine manure; T2, RF+lime; T3, RF+ “Natures” soil amendment; T4, RF+organic soil amendment; T5, RF+ “Fengshouyan” soil amendment; T6, RF+high calcium soil amendment. It was shown that, compared with the CF treatment, T1-T6 treatments significantly (P<0.05) elevated soil pH value by 0.44-1.39, reduced soil exchangeable H+ content, exchangeable Al3+ content and exchangeable acidity by 22.8%-39.7%, 33.3%-69.4%, 30.8%-60.4%, respectively, and increased soil exchangeable Ca2+ content, cation exchange capacity, base-exchangeable ions content and base saturation by 63.2%-120.5%, 9.8%-18.5%, 56.4%-95.4% and 42.2%-66.5%, respectively. Besides, the early rice yield under T1, T4, T5 treatments was significantly higher than that under the CF treatment by 20.5%, 16.7%, 9.9%, respectively. Under the experiment conditions, reduction of chemical fertilization rate combined with 3 000 kg·hm-2 organic soil amendment exhibited the best effect on mitigating soil acidification and increasing rice yield.

Key words: chemical fertilizer reduction, soil conditioner, soil acidification, soil nutrient, rice yield

中图分类号: