| 不同施肥制度对夏玉米产量特性的影响 |
| |
| 作者姓名： | 刘淑云 董树亭 赵秉强 等 |
| |
| 作者单位： | 山东农业大学作物生物学重点实验室，山东省农业科学院科技信息工程技术研究中心 济南250100，山东农业大学作物生物学重点实验室，中国农业科学院土壤肥料研究所，中国农业科学院土壤肥料研究所，中国农业科学院土壤肥料研究所，山东泰安271018，山东泰安271018，北京100081，北京100081，北京100081 |
| |
| 基金项目： | 科技部科技攻关项目;农业部农业科技跨越计划;国家重点基础研究发展计划(973计划);国家自然科学基金 |
| |
| 摘 要： | 研究了北京褐潮土13年长期定位不同施肥制度夏玉米生物产量和籽粒产量特性,主要结果:(1)长期N、P、K化肥配合(NPK处理)以及N、P、K化肥与有机肥或秸秆配合施用(NPKM与NPKS处理),生物产量和籽粒产量表现稳定且持续高产;(2)长期N、P、K化肥非平衡施肥的处理(NP、N、NK、PK处理)以及不施肥的CK,夏玉米生物产量和籽粒产量连年持续下降,植株矮小、瘦弱,甚至出现发育停滞现象。氮磷钾缺乏其中任何一种元素,都会造成植株和籽粒发育障碍,影响生物和籽粒产量。
|
| 关 键 词： | 长期定位施肥 夏玉米 产量特性 |
Effects of Different Long-term Fertilization Systems on Yield Characters of Summer Maize |
| |
| Authors: | Liu Shuyun Dong Shuting Zhao Binqiang Li Xiuying Zhang Zhenshan |
| |
| Abstract: | In order to analyze the relation of soil nutrition in different fertilization systems and yield of summer maize, chosen summer maize variety of Tangkang 5, the article studied the organism yield and seed yield characters of 13 years'' different long-term fertilization systems in fluvo-aquic soil of Beijing. The main results are as follows: (1) Organism yield and seed yield of balanced fertilization systems such as NPK, NPKM and NPKS treatments were steady and higher continuously. Seed yield of all treatments was in the descending sequence: NPKM>NPKS>NPK>NP>PK>NK>CK>N. At the same time, there were significant differences in plant height, yield of dry matter, properties of ear (ear length, bald length, grain numbers per ear, grain weight per 1000 kernel). (2) Organism yield and seed yield of long-term imbalanced fertilization systems such as NP, N, NK, PK and CK decreased continuously in successive years, and the plant were dwarfism and spareness, so much as the growth of plant stagnated. Absence of any elements of N, P, K would engender the development hindrance of plant and seed, and affected the yield of organism and seed. It is because the imbalanced fertilization resulted in the lower source capacity and sink size. |
| |
| Keywords: | Fluvo-aquic soil of Beijing different fertilization systems Summer maize Yield characters |
|
| 点击此处可从《》浏览原始摘要信息 |
| 点击此处可从《》下载免费的PDF全文 |
|
