CAJ | 학술논문

2013～2014年以郑单958为试验材料，在高、低两种地力条件下，设置超高产栽培模式（SH）、高产高效栽培模式（HH）、农民习惯栽培模式（FP）和对照（CK）4个处理，研究不同地力与栽培模式对夏玉米冠层结构及产量的影响。结果表明：高地力条件下夏玉米产量高于低地力，植株上部叶层更紧凑，穗位叶层能接受更多的光能，下部叶层衰老更快，LAI 高，群体光合势高。同一地力条件下 SH、HH 栽培模式较 FP、CK 株高、穗位增高，穗位叶上升，茎粗较 FP 减小；SH、HH 株型较 FP 更紧凑，LAI 高，生育前期建成速率高，高 LAI值持续期长，生育后期棒三叶以下叶层仍保持较高 LAI 水平；生育期内其光合势积累量高，且开花前光合势积累较 CK 高；SH、HH 处理单位面积穗数和收获指数较高，实际产量显著高于 FP、CK。
2013～2014년이정단958위시험재료，재고、저량충지력조건하，설치초고산재배모식（SH）、고산고효재배모식（HH）、농민습관재배모식（FP）화대조（CK）4개처리，연구불동지력여재배모식대하옥미관층결구급산량적영향。결과표명：고지력조건하하옥미산량고우저지력，식주상부협층경긴주，수위협층능접수경다적광능，하부협층쇠로경쾌，LAI 고，군체광합세고。동일지력조건하 SH、HH 재배모식교 FP、CK 주고、수위증고，수위협상승，경조교 FP 감소；SH、HH 주형교 FP 경긴주，LAI 고，생육전기건성속솔고，고 LAI치지속기장，생육후기봉삼협이하협층잉보지교고 LAI 수평；생육기내기광합세적루량고，차개화전광합세적루교 CK 고；SH、HH 처리단위면적수수화수획지수교고，실제산량현저고우 FP、CK。
Taking Zhengdan 958 as the test material,under high and low soil fertility conditions,four treatments of super -high -yielding cultivation pattern (SH),high -yielding and high -efficiency cultivation pattern (HH),farmer’s practice cultivation pattern (FP)and the control (CK)were designed to study their effects on canopy structure and yield of summer maize in 2013 ~2014.The results showed that under high fer-tility condition,the yield of summer maize was higher than that under the low fertility condition;the upper leaf layer was more compact and the ear layer could received more light;the lower leaf layer aged faster,but the LAI and LAD were higher.Under the same soil fertility condition,SH and HH increased the plant height and ear height compared with FP and CK,but decreased the stem diameter and made the plant type more compact compared with FP.They also had higher LAI and speed of morphogenesis,longer high -LAI duration and higher level of LAI of lower layer in late period.They accumulated more LAD in the growth period,and the proportion before the tassel stage was higher than CK.Under SH and HH treatments,higher ear number per unit and harvest index could be obtained,and their grain yields were significantly higher than FP and CK.