秸秆还田配施钾肥对油用向日葵F60干物质积累动态和产量的影响  

Effects of Straw Returning and Potassium Fertilizer Application on Yield and Dry Matter Accumulation Dynamics of Oil Sunflower F60

作　　者：宋殿秀[1] 刘晓宏[1] 赵明珠 冯良山[1] 王德兴[1] 依兵[1] 孙恩玉[1] 崔良基[1] 刘金刚[1] SONG Dian-xiu;LIU Xiao-hong;ZAO Ming-zhu;FENG Liang-shan;WANG De-xing;YI Bing;SUN En-yu;CUI Liang-ji;LIU Jin-gang(Liaoning Academy of Agricultural Sciences,Shenyang,Liaoning 110161)

机构地区：[1]辽宁省农业科学院,辽宁沈阳110161

出　　处：《辽宁农业科学》2022年第6期34-37,共4页Liaoning Agricultural Sciences

基　　金：财政部和农业农村部:国家现代农业产业技术体系建设项目(CARS-14-1-18);辽宁省农村科技特派行动计划项目(2022JH5/10400003);沈阳市种业创新专项(22-318-2-19)。

摘　　要：以油用向日葵F60为研究对象,设置秸秆还田和钾肥施用量2个因素,探讨F60的干物质积累动态和产量对秸秆还田配施钾肥的响应。结果表明:秸秆还田配施钾肥可提高油用向日葵F60的干物质积累量,增加干物质最大积累速率和平均积累速率,使达到最大积累速率的时间延后,并且相对延长了干物质积累持续时间。秸秆还田配施钾肥可提高油用向日葵F60的产量,秸秆还田和钾肥施用量为120 kg/hm^(2)(S_(1)K_(2))时,增产效果最优。Taking oil sunflower F60 as the research object,two factors of straw returning to the field and potassium fertilizer application rate were set to explore the dry matter accumulation dynamics and yield of F60 in response to the straw returning to the field and potassium fertilizer application.The results showed that Straw returning and potassium fertilizer application can increase the dry matter accumulation of F60,increase the maximum and average accumulation rates of dry matter,delay the time to reach the maximum accumulation rate,and relatively prolong the duration of dry matter accumulation.Straw returning and potassium fertilizer application could increase the yield.When the straw returning and the potassium fertilizer application rate were 120 kg/hm^(2)(S_(1)K_(2)),the yield increase effect was the best.

关 键 词：向日葵 秸秆还田 钾 产量 干物质 

分 类 号：S141.4[农业科学—肥料学] S565.5[农业科学—农业基础科学]