Xinjiang Agricultural Sciences ›› 2024, Vol. 61 ›› Issue (4): 814-822.DOI: 10.6048/j.issn.1001-4330.2024.04.004

• Crop Genetics and Breeding·Germplasm Resources·Molecular Genetics·Physiology and Biochemistry • Previous Articles     Next Articles

Effects of urease/nitrification inhibitors on nutrient absorption and yield of cotton

YE Yang(), HOU Zhen'an, MIN Wei, GUO Huijuan()   

  1. Key Laboratory of Oasis Ecological Agriculture of Xinjiang Production and Construction Corps/College of Agriculture, Shihezi University, Shihezi Xinjiang 832003, China
  • Received:2023-08-09 Online:2024-04-20 Published:2024-05-31
  • Correspondence author: GUO Huijuan
  • Supported by:
    National Natural Science Foundation of China(32160742);Xinjiang Production an Construction Corps Guiding Project(2022DZ011)

添加脲酶/硝化抑制剂对棉花养分吸收和产量的影响

叶扬(), 侯振安, 闵伟, 郭慧娟()   

  1. 石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子 832003
  • 通讯作者: 郭慧娟
  • 作者简介:叶扬(1998-),女,甘肃武威人,硕士研究生,研究方向为土壤肥力与养分循环,(E-mail)yeyang202210@163.com
  • 基金资助:
    国家自然科学基金项目(32160742);新疆生产建设兵团指导性项目(2022DZ011)

Abstract:

【Objective】 To investigate the effects of urease inhibitor N-butyl thiophosphoryl triamine (NBPT) and nitrification inhibitor 3,4-dimethylpyrazole phosphate (DMPP) on nutrient uptake and yield in cotton. 【Methods】 Using field experiments, the tested crops were cotton Xinluzao 64 and Lumianyan 24. Four treatments were set up: no nitrogen fertilizer (N0), nitrogen fertilizer (N300), nitrogen fertilizer+urease inhibitor (N300+NBPT), and nitrogen fertilizer+nitrification inhibitor (N300+DMPP). 【Results】 The results showed that compared to N0, all nitrogen application treatments significantly increased cotton biomass and promoted the absorption of nutrient nitrogen, phosphorus, and potassium by cotton plants. The order of nitrogen fertilizer utilization efficiency from high to low is N300+DMPP>N300+NBPT>N300. Applying nitrogen fertilizer and urease/nitrification inhibitors can significantly increase cotton yield. The Lumianyan 24 had better nutrient absorption, nitrogen utilization efficiency, and higher yield than Xinluzao 64, but its biomass was significantly lower than that of Xinluzao 64. 【Conclusion】 Adding urease and nitrification inhibitors can promote the absorption and utilization of nutrients by cotton plants, improve nitrogen fertilizer utilization efficiency, and ultimately effectively increase cotton yield.

Key words: cotton; urease inhibitors; nitrification inhibitors; nutrient absorption; yield

摘要:

【目的】研究添加脲酶抑制剂N-丁基硫代磷酰三胺(NBPT)和硝化抑制剂3,4-二甲基吡唑磷酸盐(DMPP)对棉花养分吸收和产量的影响。【方法】采取大田试验,供试棉花品种为新陆早64号和鲁棉研24号,共设置4个处理:不施氮肥(N0)、施氮肥(N300)、氮肥+脲酶抑制剂(N300+NBPT)、氮肥+硝化抑制剂(N300+DMPP)。【结果】与N0相比,所有施氮处理均显著增加棉花生物量,促进棉花植株对养分氮、磷和钾的吸收。氮肥利用率从高到低顺序为N300+DMPP>N300+NBPT>N300。施加氮肥和脲酶/硝化抑制剂均能显著提高棉花产量。鲁棉研24号养分吸收、氮肥利用率以及产量均优于新陆早64号,但生物量却显著低于新陆早64号。【结论】添加脲酶抑制剂和硝化抑制剂可以促进棉花植株对养分的吸收利用,并提高氮肥利用率和棉花产量。

关键词: 棉花, 脲酶抑制剂, 硝化抑制剂, 养分吸收, 产量

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