魏永霞,马瑛瑛,冯鼎瑞,熊建,张雨凤,张翼鹏.调亏灌溉下滴灌玉米根冠生长与水分动态响应特征[J].农业机械学报,2017,48(7):180-188.
WEI Yongxia,MA Yingying,FENG Dingrui,XIONG Jian,ZHANG Yufeng,ZHANG Yipeng.Characteristics of Water Dynamic Response and Growth of Root and Crown of Maize under Drip Irrigation of Regulated Deficit Irrigation[J].Transactions of the Chinese Society for Agricultural Machinery,2017,48(7):180-188.
摘要点击次数: 2196
全文下载次数: 1595
调亏灌溉下滴灌玉米根冠生长与水分动态响应特征   [下载全文]
Characteristics of Water Dynamic Response and Growth of Root and Crown of Maize under Drip Irrigation of Regulated Deficit Irrigation   [Download Pdf][in English]
投稿时间:2016-11-24  
DOI:10.6041/j.issn.1000-1298.2017.07.023
中文关键词:  玉米  调亏灌溉  干物质分配率  根冠比  伤流量  耗水量
基金项目:“十二五”国家科技支撑计划项目(2014BAD12B01)
作者单位
魏永霞 东北农业大学 
马瑛瑛 东北农业大学 
冯鼎瑞 东北农业大学 
熊建 东北农业大学 
张雨凤 东北农业大学 
张翼鹏 东北农业大学 
中文摘要:以玉米为试验材料,在自动感应式遮雨棚下,采用测坑微区试验方法,研究黑龙江西部滴灌条件下调亏灌溉对作物根冠生长、干物质分配特征、根冠比、耗水特征及植株伤流量的影响。以土壤相对含水率(占田间持水率的百分数)为控制上下限,设置5个水分调亏处理,分别为苗期轻度(60%~70%FC)处理,苗期中度(50%~60%FC)处理,拔节期轻度(60%~70%FC)处理,拔节期中度(50%~60%FC)处理,苗期中度、拔节期轻度处理,另设全生育期保持适宜土壤水分(70%~80%FC)作为对照。试验结果表明,调亏灌溉不改变玉米根部和冠部生长的原有总趋势,也不改变冠部各器官生长的基本趋势,但是显著地增大了作物根冠比(R/S),复水后根、冠补偿生长效应明显,促进光合同化产物向生殖器官的运转与分配,增大了生育后期干物质向果穗的分配率。苗期中度处理和拔节期轻度处理的玉米,在调亏期间使根系维持较高的根质量,水分胁迫复水后根系活力明显提高,其伤流量表现出超补偿效应,在灌浆期仍保持较高的伤流量并且在生育后期仍保持有较高的根冠比(R/S),是协调玉米根冠生长关系的适宜水分调亏处理。
WEI Yongxia  MA Yingying  FENG Dingrui  XIONG Jian  ZHANG Yufeng  ZHANG Yipeng
Northeast Agricultural University,Northeast Agricultural University,Northeast Agricultural University,Northeast Agricultural University,Northeast Agricultural University and Northeast Agricultural University
Key Words:maize  regulated deficit irrigation  distribution rate of dry matter  root-shoot ratio  wound flow  water consumption
Abstract:The experiment with micro plots under automatically inductive type of rain preventing condition was carried out to analyze the influence of regulated deficit irrigation on root and crown growth, characteristics of dry matter distribution, water consumption, root-shoot ratio and the wound flow of maize plant. Choosing the relative water content (the percent of field water-holding rate ) of soil as the upper and lower controlling limits, five treatments of water deficit were set, which were respectively the mild treatment(60%~70%FC) and the moderate treatment (50%~60%FC) at seedling stage, the mild treatment (60%~70%FC) and the moderate treatment (50%~60%FC) at jointing stage, moderate treatment at seedling stage and mild treatment at jointing stage, and the appropriate water content (70%~80%FC)was set as control in the whole growth period. The result showed that the regulated deficit irrigation did not change the total tendency of growth of root and crown of maize and the basic tendency of the growth of different organs in crown, but it increased the root-shoot ratio of plant and the distribution ratio of dry matters to ear in later stage of growth obviously, accelerated the transportation and distribution of photoassimilate to reproductive organs and enhanced the compensatory growth of root and crown after rehydration. The mild and moderate treatments at seedling stage of maize sustained higher root quality during deficit period, remarkably increased the root activity after rehydration, showed super compensatory effect of wound flow, kept higher wound flow at filling stage and sustained higher root-shoot ratio in later growth period, which was the appropriate water deficit treatment for coordinating the relationship of the growth of root and crown of maize.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

   下载PDF阅读器