CAJ | 학술논문

以深耕（常规耕作）、秸秆还（不还）田为要素组合5种不同处理，研究其对夏玉米的叶面积指数、灌浆速率（百粒重）、下部茎节、穗部性状及产量的影响。结果表明：各处理玉米籽粒在灌浆前期干重快速增长，而后平缓持续增长；秸秆还田对玉米叶面积指数影响较大，对下部茎节的节长和茎粗影响也较大；隔1年深耕＋秸秆还田处理在夏玉米的各个测定指标上均优于其他处理。可见，深耕和秸秆还田可增加夏玉米籽粒干物质的积累，提高叶面积指数，从而达到增产的效果。
이심경（상규경작）、갈간환（불환）전위요소조합5충불동처리，연구기대하옥미적협면적지수、관장속솔（백립중）、하부경절、수부성상급산량적영향。결과표명：각처리옥미자립재관장전기간중쾌속증장，이후평완지속증장；갈간환전대옥미협면적지수영향교대，대하부경절적절장화경조영향야교대；격1년심경＋갈간환전처리재하옥미적각개측정지표상균우우기타처리。가견，심경화갈간환전가증가하옥미자립간물질적적루，제고협면적지수，종이체도증산적효과。
The effects of tillage mode and straw returning on leaf area index (LAI), grain filling rate, lower stem node, ear characters and yield of summer maize were analyzed under 5 different treatments.The re-sults showed that the grain dry weight increased rapidly in the early filling stage, and then kept slow and con-tinuous growth.Straw returning had bigger effects on maize leaf area index, and then the node length and stem diameter of lower stem node.The treatment of deep plowing alternate year and straw returning had better effects on each index of summer maize than the others.The results suggested that deep plowing and straw re-turning could increase grain dry matter accumulation and LAI, then achieve the aim of yield improvement.