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当前位置: 首页 > 文章 > 不同施肥方式下葡萄幼苗对~(15)N-尿素的吸收、分配和利用 华北农学报 2017 (1) 260-264
Position: Home > Articles > Absorption,Distribution and Utilization of ~(15)N in Jumeigui Seedlings under Different Fertilization Methods Acta Agriculturae Boreali-Sinica 2017 (1) 260-264

不同施肥方式下葡萄幼苗对~(15)N-尿素的吸收、分配和利用

作  者：
孙聪伟;陈展;赵艳卓;牛帅科;杨丽丽
单  位：
石家庄果树研究所
关键词：
巨玫瑰葡萄;叶面施肥;15N;分配;利用
摘  要：
为了进一步促进葡萄幼苗营养生长、有效施肥,以一年生巨玫瑰葡萄幼苗为试材,采用田间盆栽试验,利用15N示踪技术对植株进行叶面施肥和土壤施肥2种追肥处理,于新梢成熟期分3次进行整株解析测定,研究了不同施肥方式下葡萄幼苗对氮素的吸收、利用、分配特性。结果表明,不同追肥方式处理均有利于新梢和叶片生长,3个测定日期叶片全氮叶抹>土施,至9月30日叶抹处理对叶片全氮的促进作用更为显著。新梢成熟期2种不同施肥方式下各器官的Ndff存在差异,以9月10日影响最大,9月10日各器官Ndff值均为叶抹大于土施,且差异性显著;9月30日新梢Ndff值叶抹处理为10.03%,显著大于土施处理(5.61%)。3个测定日期叶片15N分配率叶抹>土施,表明叶抹处理葡萄叶片对氮素的竞争能力强于土施处理。8月20日和9月10日整株15N利用率叶抹>土施,两者间差异性显著。至9月30日,不同施肥方式下各器官15N分配率差异不显著,不同器官Ndff、及15N利用率趋于一致。叶面施肥有利于葡萄幼苗叶片对氮素的征调,能够提高植株氮素利用率,促进营养生长。
译  名：
Absorption,Distribution and Utilization of ~(15)N in Jumeigui Seedlings under Different Fertilization Methods
作  者：
SUN Congwei;CHEN Zhan;ZHAO Yanzhuo;NIU Shuaike;YANG Lili;Shijiazhuang Pomology Institute;
关键词：
Jumeigui grape;;Foliar fertilization;;15N;;Distribution;;Utilization
摘  要：
For the further promotion of vegetative growth and effective fertilization in grape seedlings,taking the one-year-old potted Jumeigui grape seedlings as tested materials,using ~(15)N tracer technique to study the effects of different fertilization methods( foliar fertilization and soil fertilization) on~(15)N-urea absorption,distribution and utilization. The whole plants were dissected 3 times to leaves,shoots,trunk and roots in mature stage of new shoots. The results showed that fertilizer was beneficial to shoot and leaf growth,and foliar fertilization had remarkable influences on total nitrogen of grape leaves on September 30. The Ndff values of different organs under different fertilization methods were different at the mature stage of new shoots. Ndff values in all organs under foliar fertilization treatment were significantly higher than those under soil fertilization treatment on September 10. On September 30,Ndff values of shoots reached to 10. 03% when daubing on the leaves,which was higher than that when applying in soil( 5. 61%). The distribution ratios of~(15)N in leaves under foliar fertilization treatment were higher than those under soil fertilization treatment in three different period,which showed that foliar fertilization was beneficial to the absorption of nitrogen in leaves.~(15)N utilization rate of daubing on the leaves were significantly higher than those of applying in soil on August 20 and September 10. On September 30,there was no significant difference of distribution ratios of~(15)N in different organs between two fertilizer manners,as well as the~(15)N utilization rate,and the difference of Ndff values in different organs reduced between two fertilizer manners. The foliar fertilization is beneficial to raisethe~(15)N utilization rate in grape seedlings,and promote the vegetable growth.

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