作物学报 ›› 2013, Vol. 39 ›› Issue (05): 943-949.doi: 10.3724/SP.J.1006.2013.00943

• 研究简报 • 上一篇    



  1. 1 农业部作物营养与施肥重点开放实验室 / 中国农业科学院农业资源与农业区划研究所,北京100081;2 贺州学院化学与生物工程学院,广西贺州542800
  • 收稿日期:2012-04-25 修回日期:2012-12-15 出版日期:2013-05-12 网络出版日期:2013-02-19
  • 通讯作者: 徐明岗, E-mail: mgxu@caas.ac.cn
  • 基金资助:

    本研究由国家重点基础研究发展计划(973计划)项目(2011CB100501)和国家“十二五”科技支撑计划项目(2012BAD14B04, 2011BAD16B15)资助。

Yield Trends of Double Rice under Long-Term Fertilizations in Southern China

LI Zhong-Fang1,2,XU Ming-Gang1,*,ZHANG Hui-Min1,SUN Nan1,LOU Yi-Lai1   

  1. 1 Key Laboratory of Crop Nutrition and Fertilization, Ministry of Agriculture, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China; 2 Chemistry and Bioengineering College, Hezhou University, Hezhou 542800, China
  • Received:2012-04-25 Revised:2012-12-15 Published:2013-05-12 Published online:2013-02-19
  • Contact: 徐明岗, E-mail: mgxu@caas.ac.cn


系统分析我国南方双季典型稻区福建省白沙、江西省进贤、江西省南昌及湖南省望城4个水稻长期施肥试验资料,研究化肥NPK (氮、磷、钾)的不同组合(NP, NK, NPK)、化肥配施有机肥(NPKM)及不施肥(CK)各处理水稻的产量差异、变化趋势。结果显示,不同施肥条件下各试验点上水稻产量差异大,试验期内各施肥处理较CK的总增产率分别为NPKM 84.3%NPK 68.1%NP 42.9%NK 39.9%其中NPKM总体上显著高于NPK。长期配施NPKNPKM肥产量较稳定或呈上升趋势,尤其是晚稻,而仅施NK均呈下降或极显著下降趋势(周年变化幅度为-103~ -201 kg hm-2 yr-1),其他施肥处理晚稻产量相对稳定。不同试验点间施磷量较高(52 kg hm-2 yr-1)的南昌点产量相对稳定,而施磷量较低(24 kg hm-2 yr-1)的白沙点各处理均呈显著下降趋势。本试验条件下,施肥投入不足又特别是施磷肥量低或不施磷为早稻产量下降的主要驱动因素。合理施用NPK肥,配合有机肥,为推荐的施肥模式,为了使试验点双季稻产量稳定且不呈下降趋势,需年施纯磷50.0~63.9 kg hm-2, 且适当偏重于早稻季。

关键词: 长期施肥, 水稻, 产量趋势


Four long-term field experiments conducted in Baisha Fujian, Jinxian Jiangxi, Nanchang Jiangxi, and Wangcheng Hunan of Southern China, were selected to assess dynamic characteristics of double-rice grain yield under different nutrient strategies. For each experiment, there were five treatments of chemical fertilizer NPK (NPK), manure combined with chemical fertilizer NPK (NPKM), chemical fertilizer NP (NP), chemical fertilizer NK (NK), and control (CK). The results showed that rice yield in the treatments of NPKM, NPK, NP, and NK increased by 84.3%, 68.1%, 42.9%, and 39.9%, respectively on average compared with the CK, and was remarkably higher in the NPKM than in the NPK treatment. Rice yield change as a whole showed increasing or stable trend for the NPKM and NPK treatments, especially for late-rice. Rice yield showed a decreasing trend in the NK treatment, but stable in other treatments. The early-rice was declined with lasting planting years than the late-rice. The significantly positive correlations were found between the yield trends and phosphorus application rate across the sites. There were a relative stable yield trend in Nanchang due to the higher phosphorus application (52 kg ha-1 yr-1), and the negative trends in Baisa due to the low phosphorus application (24 kg ha-1 yr-1). The deficiency of phosphorus fertilizer makes rice yield decreasing. The yield-declining trends were observed in rice especially in early-rice with no fertilizer or chemical fertilizers alone. The results suggest that manure application combined with chemical NPK fertilizers should be encouraged for increasing yield and sustainability. Phosphorus should be appropriately applied at 50.0–63.9 kg ha-1 yr-1, especially for early-rice.

Key words: Long-term fertilization, Rice, Yield trend

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