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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (9): 97-101.

所属专题： 水稻

• 农学 农业基础科学 • 上一篇    下一篇

豫南稻区水稻缓/控释肥应用效果研究

吕玉虎   

  • 收稿日期:2011-07-12 修回日期:2011-10-20 出版日期:2012-03-25 发布日期:2012-03-25

Study on Application Efficiency of Slow/Controlled Release Fertilizer in Paddy Field in South Henan

  • Received:2011-07-12 Revised:2011-10-20 Online:2012-03-25 Published:2012-03-25

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摘要：

为了探讨水稻缓/控释肥在豫南稻区的应用效果，通过田间试验，研究施用水稻缓/控释肥对水稻生长发育、产量和氮素利用率等方面的影响。结果表明，施用等量水稻缓/控释肥比施普通复合肥增加了水稻分蘖数，提高了水稻群体质量；增加了水稻在生育中后期，尤其是水稻灌浆期叶片的叶绿素含量；提高了水稻有效穗、穗实粒数。施用水稻缓/控释肥水稻产量达到9233.3~9725.0 kg/hm2，比施等量普通复合肥增产5.5%~11.1%，增产达极显著水平。施用水稻缓/控释肥比施等量普通复合肥氮素利用率、氮素农学效率分别高18.9%~22.9%、2.9%~5.9%。在豫南稻区施用水稻缓/控释肥能增加水稻产量、提高水稻氮素利用效率。

关键词: 钠/钙离子比例, 钠/钙离子比例, 水平一维入渗, 特性, 土壤

Abstract:

The effects of application of slow/controlled release fertilizer on rice growth, rice grain yield and utilization efficiency of nitrogen were studied through a field experiment. The results showed that, the same amounts of slow/controlled release fertilizer improved tiller number, the population quality of rice and increased the chlorophyll content of rice leaves at middle and late growth phase, especially in the grain filling stage, which resulted in higher effective tiller and filled grain, compared with CK. The rice grain yield was 9233.3-9725.0 kg/hm2 with the application of slow/controlled release fertilizer, which increased by 5.5%-11.1% (P < 0.01), compared with the same amounts of compound fertilizer. Utilization efficiency of nitrogen and agronomic efficiency of nitrogen applied slow/controlled release fertilizer were 18.9%-22.9%, 2.9%-5.9% respectively higher than those with the application of compound fertilizer. In conclusion, higher rice yield and utilization efficiency of nitrogen were obtained when slow/controlled release fertilizer was applied to paddy field in south Henan province.