不同肥料增效剂在水稻上的应用效果研究  

The effects of different fertilizer synergist on the rice

作　　者：杨勇[1,2,3] 蒋宏芳 荣湘民[1] 胡文玮[1] 田昌[1] 刘安辉 谢桂先[1] 宋海星[1] 

机构地区：[1]湖南农业大学资源环境学院,农田污染控制与农业资源利用湖南省重点实验室,植物营养湖南省普通高等学校重点实验室,湖南长沙410128 [2]湖南省安邦农业研究院,湖南衡阳421200 [3]湖南安邦新农业科技股份有限公司,湖南衡阳421200

出　　处：《中国土壤与肥料》2015年第5期83-87,共5页Soil and Fertilizer Sciences in China

摘　　要：采用田间小区试验,研究不同肥料增效剂对南方丘陵地区水稻产量和肥料利用率的影响。结果表明：施肥量相同的条件下,施用肥料增效剂（双氰胺、氢醌、复合增效剂、多维肥精和聚天冬氨酸）能增加水稻有效穗0.9~2.1穗,增加每穗粒数3.4~10.6粒,水稻籽粒增产效果明显,增产幅度在3.51%~6.15%之间,施用双氰胺增产效果最好,产量达到7 982.8 kg/hm2。肥料增效剂能够有效增加水稻养分积累量,提高肥料利用效率,双氰胺氮、钾肥料利用率最高,分别达到64.21%和48.45%,磷肥利用率为24.67%,仅次于氢醌。添加肥料增效剂氮、磷、钾肥料利用率分别提高2.29%~8.44%、3.91%~7.40%、2.90%~8.72%。Field experiments were conducted to investigate effects of different fertilizer synergists on rice yield and fertilizer utilization rate in southern hilly areas. The results showed that the number of effective spikes increased by 0. 9 ~ 2. 1 and the number of grain increased by 3. 4 ~ 10. 6 per panicle,under the same rate of fertilizer with addition of fertilizer synergist（ DCD,HQ,NAM,ANO,PASP）. Accordingly,the production of rice increased obviously by 3. 51% ~ 6. 15%. In addition,the effect of dicyandiamide on rice yield was the most effective,the yield reached 7 982. 8 kg / hm2. Furthermore,fertilizer synergist effectively increased the nutrient accumulation of rice and improved the fertilizer utilization ratio. The fertilizer utilization ratio of N and K in dicyandiamide treatment was the highest,which was 64. 21% and 48. 45% respectively. Utilization rate of P fertilizer in dicyandiamide treatment was 24. 67%,which was ranked only second to that of hydroquinone treatment. In conclusion,fertilizer utilization ratio of N,P and K were increased by 2. 29% ~ 8. 44%,3. 91% ~ 7. 40%,and2. 90% ~ 8. 72%,respectively with application of fertilizer synergist.

关 键 词：肥料增效剂 水稻 肥料利用率 产量 

分 类 号：S511[农业科学—作物学]