CAJ | 학술논문

　　在等氮量条件下研究深松与施氮方式对玉米子粒灌浆特性及产量和品质的影响。结果表明，深松使玉米灌浆后期百粒重增加，隔行深松(T1)对灌浆后期百粒重的增加作用大于行行深松(T2)；追氮处理最大灌浆速率(Gmax)、平均灌浆速率(G)、灌浆后期百粒重与灌浆活跃生长期(P)均大于一次性基施氮肥处理，且随追氮次数的增加灌浆后期百粒重增加；深松使Gmax增加，最大灌浆速率出现的天数(Tmax)提前，对灌浆速率的增加作用T1处理大于T2处理；各施氮处理对灌浆速率的影响表现为拔节期、灌浆期分别追施氮肥>拔节期追施氮肥>一次性基施氮肥。追氮对子粒灌浆的促进作用大于深松措施。灌浆后期百粒重与产量极显著正相关。G和Gmax与灌浆后期百粒重的相关系数较大，其他灌浆参数相关性较小。子粒蛋白质含量与产量呈极显著正相关；淀粉含量与产量呈显著负相关；油分含量与产量间的相关性较小。
　　재등담량조건하연구심송여시담방식대옥미자립관장특성급산량화품질적영향。결과표명，심송사옥미관장후기백립중증가，격행심송(T1)대관장후기백립중적증가작용대우행행심송(T2)；추담처리최대관장속솔(Gmax)、평균관장속솔(G)、관장후기백립중여관장활약생장기(P)균대우일차성기시담비처리，차수추담차수적증가관장후기백립중증가；심송사Gmax증가，최대관장속솔출현적천수(Tmax)제전，대관장속솔적증가작용T1처리대우T2처리；각시담처리대관장속솔적영향표현위발절기、관장기분별추시담비>발절기추시담비>일차성기시담비。추담대자립관장적촉진작용대우심송조시。관장후기백립중여산량겁현저정상관。G화Gmax여관장후기백립중적상관계수교대，기타관장삼수상관성교소。자립단백질함량여산량정겁현저정상관；정분함량여산량정현저부상관；유분함량여산량간적상관성교소。
The equal nitrogen was used to study the effect of deep loosening and nitrogen application methods on grain filling and qualities of maize. The result showed that 100-grain weight was increased in the late grain filling stage in deep loosening condition, and the increase of interleave row deep loosening (T1) was greater than each row deep loosening(T2) effect. The maximum grouting rate(Gmax), averagegrouting rate(G), 100-grain weight and grouting active growth days (P) in topdressing nitrogen treatment was bigger than in non-topdressing nitrogen treatment. And with the increase in times of topdressing, the 100-grain weight was increased in the late grain filling stage. Deep loos-ening treatment with the higher Gmax and the Tmax emerged earlier than in non-deep loosening treatment. The effect of increasing grain-filling rate in T1 was bigger than in T2. Topdressing nitrogen fertilizer was played a bigger role in promoting grain grouting than that in deep loosening treatment. The correlative coefficient of 100-grain weight in the late grain filling stage to yield is the most. The correlative coefficient of G and Gmax to 100-grain weight in the late grain filling stage is the most. But the correlative coefficient of other grain filling parameters to 100-grain weight in the late grain filling stage was the least. There was significantly positive correlation between protein content in grain and yield, and negative correlation between starch content in grain and yield.