植物营养与肥料学报2013,19(1)：26-36 Plant Nutrition and Fertilizer Science
doi: 10.11674/zwyf.2013.0104
超高产夏玉米干物质与氮、磷、钾养分
积累与分配特点
齐文增，陈晓璐，刘鹏*，刘惠惠，李耕，邵立杰，王飞飞，
董树亭，张吉旺，赵斌
（作物生物学国家重点实验室，山东省作物生物学重点实验室，山东农业大学农学院，山东泰安271018）
摘要：探讨超高产夏玉米品种整株干物质与氮、磷、钾养分积累分配特点，为制定高产裁培管理措施提供依据。本文在大田条件下，以登海661(DH661)和郑单958（ZD958）为试验材料，比较研究了超高产夏玉米干物质与氮、磷、钾养分积累分配特点。结果表明，超高产夏玉米DH661在成熟期内整株干物质及氮、磷、钾积累量分别为 88568969 23.72%、32.17%、21.89%。超高产夏玉米DH661的干物质和氮、磷、钾养分在叶片和基秆中的分配比例均低于
DH661各器官的养分吸收速率均显著高于ZD958，具有较高的养分吸收效率；茎、叶及根系的氮、确、钾养分吸收速率在灌浆期前保持较高水平，之后下降较快，面籽粒的氮、磷、钾养分吸收速率于灌浆期后增加较快。吐丝期后， DH661仍能吸收积累较多的养分，因此吐丝后适当追肥对于超高产夏玉米灌浆期养分充足供应至关重要。
关键调：超高产夏玉米；干物质；氮、磷、钾养分
中图分类号：S513.01
文献标识码：A
文章编号：1008505X(2013)010026-11
Characteristics of drymatter,accumulation and distribution ofN,P andK
ofsuper-high-yieldsummermaize
QI Wen-zeng, CHEN Xiao-lu, LIU Peng', LIU Hui-hui, LI Geng, SHAO Li-jie, WANG Fei-fei
DONG Shu-ting, ZHANG Ji-wang, ZHAO Bin
(State Key Laboratory of Crop Biology/Shandong Key Laboratory of Crop Biology/ Agronomy coege of Shandong Agricultural Unitersiy, Taian, Shandong 271018, China)
Abstract: The aim of this study is to investigate characteristics of dry matter and nitrogen(N) , phosphorus(P) and potassium(K) nutrient accumulations and distributions of super-high-yield summer maize. Field experiments were conducted in 2010 and 2011 for the higher-yield com cultivar, Denghai (DH661) and the commonly grown com cultivar, Zhengdan 958 (ZD958).The results show that the dry matter and N, P and K nutrient accumulation amounts per hectare of DH661 are 33475.53 kg, 369.76 kg, 117.85 kg and 285.78 kg at maturity stages of com respectively, and compared with the ZD958, the dry matter and N, P and K nutrient accumulation amounts of DH661 are increased by 15. 82% , 23. 72% , 32. 17% and 21.89% respectively. The proportions of dry matter and N, P and K nutrients in the organs of stems and leaves of DH661 are lower than those of ZD958, while the proportions of dry matter and N, P and K nutrients in the organs of grains and roots of DH661 are higher than those of ZD958. The rates of nutrients uptakes of DH661 are higher than those of ZD958 in the whole organs. The rates maintain high levels before the filling stage and decline very fast after the filling stage in the organs of stems, leaves and roots, and
收稿日期：201204-09
接受日期：2012-10-08
基金项目：国家自然科学基金（3071358、30871476）；欧盟FP7国际合作项目（NUE-CROPS222645）；国家“十二五"科技支撑计划
（2011BAD16B14）；公益性行业（农业）科研专项（HY201203100，HY201203096）；山东省财政支持农业重大应用技术创新课题(2010)：山东省良种工程玉米重大课题(2011)：山东登海种业玉米育种与栽塔技术重点实验室开放课题（2012)资助。
作者简介：齐文增（1987一），男，山东昌乐人，硕士研究生，主要从事玉米栽培生理生态方面的研究。
*通信作者Tel;05388245838，E-mail; liupengsdsu@126.com
Tel: 05388245838, E-mail; qivenzeng321@163, com。
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