Effects of Tillage Method Combined with Organic Material Application on Yield and Quality of Maize in Chernozem
Li Peibo
Fan Wei
Li Xiaolin
Zhang Shuimei
Liu Ximing
Zhao Zhenlin
Zhang Chang
Yan Jinyao
Liang Yao
Liang Yunjiang
Cai Hongguang
Abstract：A field experiment was conducted from 2024 to 2025 to investigate the effects of tillage methods[no tillage(NT),deep tillage(PT),and rotary tillage(RT)]combined with organic materials[straw(S),straw plus pig manure(SM),straw plus fulvic acid organic fertilizer(SH),and straw plus microbial organic fertilizer(SW)]on maize plant height,SPAD value,aboveground dry matter accumulation,yield and its components,and grain quality,so as to identify suitable tillage method and organic material for yield stability and quality improvement in the chernozem region.The results showed that,among different tillage methods,PT treatment generally had the highest plant height,aboveground dry matter accumulation at maturity,ear number,kernel number per ear,yield,and grain starch content.Compared with NT treatment,the yield of PT treatment increased by 9.4%and 5.0%in 2024 and 2025,respectively.RT treatment had the highest 100-grain weight,crude protein content,total amino acid content,lysine content,and leucine content.Among different organic materials,yield showed interannual variation,S treatment had the highest yield in 2024,and SH treatment had the highest yield in 2025;SW treatment had the highest aboveground dry matter accumulation at maturity;SM treatment had the highest starch content;SH treatment had the highest crude protein,crude fat,and total amino acid contents.Among different treatment combinations,PTSW treatment had the highest yield in 2024,reaching 11 576.2 kg/ha,which was 21.3%higher than that of NTN(no tillage and organic material)treatment;in 2025,PTSH treatment had the highest yield,reaching 14 590.2 kg/ha,which was 21.2%higher than that of NTN treatment;PTSM treatment had the highest starch content of 65.08%,which was 2.1%higher than that of NTN treatment;RTS treatment had the highest crude protein content of 8.71%,which was 16.8%higher than that of NTN treatment;RTSH treatment had the highest total amino acid content of 4.14%,which was 18.7%higher than that of NTN treatment.Yield was significantly positively correlated with plant height,100-grain weight,ear number,kernel number per ear,crude protein content,and aboveground dry matter accumulation.Overall,PT treatment can be considered a suitable tillage method for yield stability and quality improvement of maize in the chernozem region,among organic materials,SH treatment shows balanced overall performance,and PTSH treatment can be recommended as a priority combination for yield stability and quality improvement.
Keywords：MaizeTillage methodOrganic materialYieldGrain quality
Publication Date：2026-08-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：12( 10-21 )