摘要
【目的】定量分析华北平原保护性耕作对冬小麦的产量和产量组成响应,明确冬小麦适宜的高产耕作方式。【方法】搜集中外文献数据库公开发表的40篇文献中513组试验数据,运用Meta分析方法,定量描述保护性耕作对冬小麦产量和产量组成的响应结果。【结果】与传统耕作方式相比,免耕对冬小麦总体呈现显著减产响应,产量减低5.11%,主要体现在冬小麦穗数显著降低7.67%。深松耕对冬小麦呈现显著增产响应,增产11.72%,主要体现在冬小麦穗数、穗粒数和千粒重均显著增高。深松耕条件下,华北平原中部和南部地区存在显著的增产响应,且冬小麦产量受年均气温、年降雨量和施氮量影响较小。【结论】在华北平原冬小麦-夏玉米一年两熟种植区域采用深松耕方式有助于提高冬小麦产量,主要体现在产量组成各因素的显著提高。华北平原中部和南部优先使用深松耕种植技术。
【Objective】 In order to quantitatively analyze the effects of conservation tillage on winter wheat yield and yield composition in the North China Plain, this study was conducted to seek the suitable high-yield tillage methods for winter wheat. 【Method】 In this study, we collected 513 groups of experimental data from 40 published papers in Chinese and foreign literature databases, and the meta-analysis method was used to quantitatively describe the response of conservation tillage for winter wheat yield and yield composition. 【Result】 Compared with the traditional tillage method, no-tillage showed a significant reduction effect for winter wheat yield by 5.11%, which was mainly reflected in the number of spikes with a significant decrease of 7.67%. Subsoiling showed a significant increase effect for winter wheat yield, and the yield increased by 11.72%, which was mainly reflected in the significant increases for the number of spikes, the grains per spike and 1 000-grains weight.Under subsoiling tillage, there was a significant yield increase response in the central and southern regions of the North China Plain, and the winter wheat yield was less affected by the average annual temperature, annual rainfall and nitrogen application. 【Conclusion】 Subsoiling is beneficial to improve winter wheat yields in the biannual winter wheatsummer maize planting area of the North China Plain, which is mainly reflected in the significant increase of yield composition. Deep tillage is used as a priority in the central and southern regions of the North China Plain.
作者
耿晶
贺亭峰
李海康
GENG Jing;HE Tingfeng;LI Haikang(Jinzhong College of Information,Jinzhong 030800,Shanxi,China;Shanxi Institute of Organic Dryland Farming,Shanxi Agricultural University,Taiyuan 030031,China)
出处
《四川农业大学学报》
CSCD
北大核心
2023年第1期158-165,共8页
Journal of Sichuan Agricultural University
基金
山西省现代农业(油料)产业技术体系建设岗位专家项目(2022-5-17)
山西农业大学省部共建有机旱作农业国家重点实验室自主研发项目(202105D121008)。
关键词
META分析
保护性耕作
冬小麦
产量
产量组成
meta-analysis
conservation tillage
winter wheat
yield
yield composition
作者简介
耿晶,硕士;责任作者:贺亭峰,博士,助理研究员,主要从事作物区域耕作模式研究,E-mail:hetingfeng_54364@126.com。
