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中国农学通报 ›› 2015, Vol. 31 ›› Issue (21): 71-75.doi: 10.11924/j.issn.1000-6850.casb15010033

所属专题: 油料作物

• 农学 农业基础科学 • 上一篇    下一篇

缺钾胁迫对大豆植株钾素与干物质积累的影响

王晓君1,陈 慧2,张斯文1,马春梅1,龚振平1,赵恩龙3   

  1. (1东北农业大学农学院,哈尔滨 150030;2吉林广播电视大学,长春 130022;3哈尔滨天顺生态农业投资有限公司,哈尔滨 150000)
  • 收稿日期:2015-01-07 修回日期:2015-03-10 接受日期:2015-03-19 出版日期:2015-07-28 发布日期:2015-07-28
  • 通讯作者: 马春梅
  • 基金资助:
    国家科技支撑计划“大豆高产高效关键技术研究与示范”(2014BAD11B01),“大豆丰产增效技术研究与示范”(2006BAD21B01);黑龙江省重大科技项目“提高大豆单产关键技术及配套技术模式研究”(GA14B101)。

Effect of Potassium Deficiency on Accumulation of Potassium and Dry Matter in Soybean

Wang Xiaojun1, Chen Hui2, Zhang Siwen1, Ma Chunmei1, Gong Zhenping1, Zhao Enlong3   

  1. (1College of Agriculture, Northeast Agricultural University, Harbin 150030;2Jilin Radio and TV University, Changchun 130022;3Harbin Skyway Ecological Agriculture Investment Co., Harbin 150000)
  • Received:2015-01-07 Revised:2015-03-10 Accepted:2015-03-19 Online:2015-07-28 Published:2015-07-28

摘要: 为了给大豆生产中合理施用钾肥提供重要理论依据和参考,本试验采用砂培方法,自大豆V3期开始,连续进行4 次缺钾处理,研究了缺钾胁迫对大豆植株钾素和干物质积累的影响。结果表明:大豆V3~R1期缺钾胁迫,下部叶、柄钾素向上部转移,以供给新生的上部器官,保证其生长;在R1~R3期、R3~R5期、R5~R6期缺钾胁迫,所有营养器官中的钾素均向荚果中转移,以保证其生长发育;V3~R1期、R1~R3期主要以营养生长为主,此时断钾,钾素对营养生长阶段的大豆干物质积累未有很大的影响。R3~R5期、5~R6期为钾素对干物质积累影响最关键时期,此时断钾,干物质积累下降明显。

关键词: 霉菌, 霉菌, 重金属, 吸附

Abstract: The aim was to provide important theoretical basis of potash fertilizer application in soybean production. From V3 stage, four consecutive potassium deficiency treatments were set to determine effect of potassium deficiency stress on the accumulation of potassium and dry matter in soybean plant with sand culture. The result showed that under the condition of potassium deficiency, potassium transferred from lower to upper leaf and petiole for the growth of new organs in V3 to R1 stage. Potassium transferred from vegetative organ to pod to ensure pod’s growth and development from stages of R1 to R3, R3 to R5 and R5 to R6. The potassium deficiency had little effect on dry matter accumulation in stages of V3 to R1 and R1 to R3 which were mainly vegetative growth. The accumulation of dry matter declined obviously when potassium deficiency was in stages of R3 to R5 and R5 to R6, which were pivotal to the effect of potassium on dry matter accumulation.