JIN Zheng-xun,LUGO Oke,ZHU Fang-xu,et al.Effect of Silicon Application Rate and Stage on Yield,Quality and Lodging Resistance of Rice in Cold Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2015,(10):49-53,54.[doi:10.11942/j.issn1002-2767.2015.10.0049]
硅肥施用量及时期对寒地水稻产量和品质性状及抗倒性的影响
- Title:
- Effect of Silicon Application Rate and Stage on Yield,Quality and Lodging Resistance of Rice in Cold Region
- 文章编号:
- 1002-2767(2015)10-0049-05
- Keywords:
- rice; silicon fertilizer; application rate; application stage; yield; quality
- 分类号:
- S511
- 文献标志码:
- A
- 摘要:
- 选用韩国产“农爱丰”扩散性硅肥和国产可溶性硅肥,设置不同施用量和施用时期处理,研究硅肥施用量及时期对寒地水稻产量和品质性状及抗倒性的影响。结果表明:施用硅肥可显著提高寒地水稻产量,硅肥最佳施用量因品种而异,施用量少增产效果不显著,过多会导致减产,肥料效率低;产量性状和品质性状对硅肥的响应虽然因品种和施肥量不同而异,但适量施用硅肥能提高每穴穗数、穗粒数和结实率、单株实粒重以及降低稻米直链淀粉含量和蛋白质含量,并缩短茎秆节间长度和增加茎粗;寒地水稻硅肥最佳施用时期为最高分蘖期至幼穗分化始期,农爱丰硅肥最佳施用量为6 kg?hm-2。
- Abstract:
- Taking two silicon fertilizers (SF) of Korean diffusive "Silica Tabs" and Chinese soluble silicon fertilizer were used to research on effects of silicon application rate and stage on rice yield,quality and lodging resistance in cold region.The random block experiment in rice field was conducted with different application rate and stage of silicon fertilizers.The results showed that application of silicon fertilizers increased rice yield significantly,and its optimal amount varied for different varieties.Less application rate of SF resulted in worse yield,while overuse of SF caused loss of yield and low fertilizer efficiency.Therefore,optimal application rate of SF contributed to increasing panicle numbers,kernels per panicle,setting percentage,grain weight per plant,decreasing amylose content and protein content as well as shortening internode length and increasing stem diameter.Thus,the optimal application for rice in cold region should be carried out between the highest tilleringstage to ear differentiation,especially six kilograms per hectare of "Silica Tabs" silicon fertilizer was optimum.
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备注/Memo
收稿日期:2015-07-01
基金项目:韩国中小企业厅革新企业技术开发事业资助项目;“十二五”农村领域国家科技支撑计划资助项目(2013BAD20B04-2S)
第一作者简介:金正勋(1960-),男,吉林省图们市人,博士,教授,博士生导师,从事水稻遗传育种及栽培技术研究。E-mail:zxjin326@hotmail.com。