Effects of Seeding Methods on Population Photosynthetic Characteristics,Nitrogen Accumulation and Transport and Yield of Winter Wheat
LIU Linye
WANG Zhuangzhuang
GU Fengxu
DUAN Jianzhao
WANG Yonghua
Abstract：The winter wheat double-width and double-pressure strip seeder developed by College of Mechanical&Electrical Engineering of Henan Agricultural University was introduced,and three sowing methods,namely conventional equal row space mechanical strip seeding(CS),wide-width mechanical strip seeding(WS)and double-width and double-pressure strip seeding(DDS),were set up to study the effects of different sowing methods on population photosynthetic characteristics,nitrogen accumulation and transport and yield of winter wheat.The aim of this study was to define the suitable sowing method for wheat field with the clay tidal soil in southeastern Henan Province,and provide theoretical basis and technical support for the improvement of winter wheat sowing quality and the high yield and efficient production of agricultural machinery and agronomic integration in this area.The results showed that compared with CS treatment,WS and DDS treatments increased leaf area index,chlorophyll content,population photosynthetic rate after booting,nitrogen translocation amount before anthesis,nitrogen accumulation after anthesis,and significantly increased panicle number,grain number per spike and yield,especially DDS treatment,with an average increase of 6.94%and 12.68%in 2 years for WS and DDS treatments,respectively.In conclusion,WS and DDS treatments can effectively improve the population photosynthetic performance of winter wheat,promote nitrogen accumulation and transport,and achieve increase of yield.DDS treatment is the best,and can be used as a suitable sowing method for winter wheat in the moist soil region of southeast Henan Province.
Keywords：Winter wheatSeeding methodPopulation photosynthetic characteristicNitrogen accumulation and transportYield
Publication Date：2024-10-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 28-36 )