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条带深旋小双行精播技术对夏玉米产量调控效应研究

Regulation Effects of Narrow-Double Row Precision Sowing with Subsoiling on Yield in Summer Maize
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摘要 以京农科728和天塔619为试验材料,研究玉米条带深旋小双行精播技术对黄淮海平原夏玉米产量的调控效应。结果表明,条带深旋后0~10cm土层容重降低6.64%~17.42%。夏玉米吐丝期叶面积指数提高26.78%~46.11%(P<0.05),拔节前、拔节-吐丝和吐丝后净同化率分别提高16.27%~25.82%、5.23%~35.41%和3.83%~31.40%,干物质积累量显著提高。条带深旋小双行精播处理的夏玉米有效穗数增加19.73%~24.68%(P<0.05),穗长增长、秃尖长缩短、有效穗长显著增长,行粒数和穗粒数显著增加,而千粒重显著降低,夏玉米实际产量和理论产量均显著提高。 In order to study the regulation effects of the narrow-double row precision sowing with subsoiling on maizeyield,a field experiment was conducted by using Jingnongke 728 and Tianta 619 as the testing materials.The resultsshowed that the soil bulk density in 0-10 cm depth was reduced by 6.64%-17.42%.Summer maize leaf area index wereincreased by 26.78%-46.11%(P<0.05),while net assimilation rates during emergence to 6 leaf,6 leaf to silking andsilking to maturity were increased by 16.27%-25.82%,5.23%-35.41%and 3.83%-31.40%,respectively.Therefore,summer maize dry matters increased significantly.Under the treatment of narrow-double row precision sowing withdeep-spinning,summer maize ear number were increased by 19.73%-24.68%(P<0.05),and the ear length increased,bald-tip length shortened,row grain number and ear grain number increased significantly,but the 1000-grain weightdecreased significantly,so that both the actual and theoretical yields of summer maize increased significantly.
作者 梁茜 刘文亚 葛均筑 赵明 侯海鹏 杨永安 辛德财 Liang Qian;Liu Wenya;Ge Junzhu;Zhao Ming;Hou Haipeng;Yang Yong′an;Xin Decai(College of Agronomy&Resources and Environment,Tianjin Agricultural University,Tianjin 300384,China;Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Tianjin Agricultural Technology Promotion Station,Tianjin 300061,China;Tianjin Maize Elite Seed Farm,Tianjin 301500,China)
出处 《作物杂志》 CAS 北大核心 2019年第1期111-115,198共6页 Crops
基金 国家重点研发计划“粮食丰产增效科技创新”重点专项项目“玉米生产系统对气候变化的响应机制及其适应性栽培途径”(2017YFD0300300) 天津市农业科技成果转化与推广项目“玉米秸秆覆盖深松精播一体化技术开发与示范”(201704060).
关键词 条带深旋小双行精播技术 夏玉米 土壤容重 干物质 产量 产量构成因素 The technology of narrow-double row precision sowing with deep-spinning Summer maize Dry matter Yield Yield component
作者简介 第一作者:梁茜,在读硕士研究生,研究方向为玉米高产栽培生理学;第一作者:刘文亚,本科,研究方向为玉米高产栽培生理;通信作者:葛均筑,讲师,研究方向为玉米高产栽培生理学
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