• ISSN 1008-505X
  • CN 11-3996/S
陈贤友, 吴良欢, 韩科峰, 李金先, 应金耀. 包膜尿素和普通尿素不同掺混比例对水稻产量与氮肥利用率的影响[J]. 植物营养与肥料学报, 2010, 16(4): 918-923. DOI: 10.11674/zwyf.2010.0421
引用本文: 陈贤友, 吴良欢, 韩科峰, 李金先, 应金耀. 包膜尿素和普通尿素不同掺混比例对水稻产量与氮肥利用率的影响[J]. 植物营养与肥料学报, 2010, 16(4): 918-923. DOI: 10.11674/zwyf.2010.0421
CHEN Xian-you, WU Liang-huan, HANG Ke-feng, LI Jin-xian, YING Jin-yao. Effects of different mixture rates of coated urea and prilled urea on rice grain yield and nitrogen use efficiency[J]. Journal of Plant Nutrition and Fertilizers, 2010, 16(4): 918-923. DOI: 10.11674/zwyf.2010.0421
Citation: CHEN Xian-you, WU Liang-huan, HANG Ke-feng, LI Jin-xian, YING Jin-yao. Effects of different mixture rates of coated urea and prilled urea on rice grain yield and nitrogen use efficiency[J]. Journal of Plant Nutrition and Fertilizers, 2010, 16(4): 918-923. DOI: 10.11674/zwyf.2010.0421

包膜尿素和普通尿素不同掺混比例对水稻产量与氮肥利用率的影响

Effects of different mixture rates of coated urea and prilled urea on rice grain yield and nitrogen use efficiency

  • 摘要: 以晚粳稻“秀水110”为供试水稻品种,在2007、2008连续2年田间试验条件下,研究了硫磺加树脂双层包膜尿素(SPCU)和普通尿素(PU)不同掺混比例对水稻产量及氮肥利用率的影响。结果表明,与当地农民习惯施用普通尿素PU100%(N 210 kg/hm2)处理相比,等氮量下一次性基施包膜尿素SPCU100%、SPCU70%+PU30%和SPCU50%+PU50%处理产量为7644.0、7172.5和7008.2 kg/hm2,增产17.75%、10.49%和7.96%; 氮肥利用率为27.64%、23.24%和18.06%,提高18.73、14.33和9.15个百分点; 氮肥农学效率也有显著增加。

     

    Abstract: Using japonica Xiushui 110 as the tested rice cultivar, effects of different mixture rates of sulfur-polyester resin-coated urea(SPCU)and prilled urea(PU)on rice grain yield and nitrogen use efficiency(NUE)were studied in fields during 2007 and 2008. Results show that compared to the PU100% at N 210 kg/ha in conventional fertilizer application, the rice grain yields are 7644.0, 7172.5 and 7008.2 kg/ha under the single basal application of SPCU100%, SPCU70%+PU30% and SPCU50%+PU50% treatments, respectively, which are significantly increased by 17.75%, 10.49% and 7.96%, and the nitrogen use efficiencies are 27.64%, 23.24% and 18.06%, which are significantly increased by 18.73,14.33 and 9.15 percent point. These results indicate the agronomic nitrogen use efficiencies are significantly increased.

     

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