穗肥的施用时期对水稻高光效群体素质的影响及应用  

Effect of Panicle Fertilizer Application Time on High Photosynthetic Efficiency Rice Population Quality and Its Application

作　　者：张景波 郑福娇 陈淑洁[2] 

机构地区：[1]黑龙江省监狱局农科所,黑龙江佳木斯154025 [2]黑龙江农垦科学院水稻研究所,黑龙江佳木斯154025

出　　处：《北方水稻》2008年第3期91-92,共2页North Rice

摘　　要：穗肥能够增加颖花数和防止颖花退化,为适时安全抽穗和提高结实率、粒重打好基础。穗肥的不同施用期,直接影响到抽穗期营养物质的积累,通过对生育期内及成熟后各项指标的调查分析表明:后期的穗肥施用对建立高光效群体起到重要作用,9.0叶期施用穗肥对建立优质高产群体起到重要作用。Panicle fertilizer can increase spikelets and prevent spikelet retrogression and lay a foundation for heading safely and increasing kernel setting and kernel weight. The application time of panicle fertilizer directly influences nutrient accumulation at heading stage. The results revealed that the application of panicle fertilizer at late period played an important role on the construction of high photosynthetic efficiency rice population, especially at 9.0 leaf age.

关 键 词：水稻 穗肥 高产群体 营养物质 施用技术 

分 类 号：S147.23[农业科学—肥料学]