CAJ | 학술논문

采取同一密度不同株行距配置和不同施氮量的试验处理,分析栽培措施和施氮量对糯玉米冠层的SPAD 值、叶面积指数(LAI)、光合势、茎叶倾角、叶向值、冠层 PAR 、冠层开度、产量及产量构成要素的影响.结果表明:在同一密度同一行距条件下,冠层 SPAD 值、叶向值、PAR 随着施氮量增加而增加,各处理间差异显著,而叶倾角随着施氮量增加而减小;不同施氮量对冠层开度影响不大,差异不显著,而对糯玉米产量影响差异显著.在授粉后12~18 d ,行距70 cm ,施氮量为 N3,叶面积指数达最大,光合势最强,且较其它生育期差异明显.
채취동일밀도불동주행거배치화불동시담량적시험처리,분석재배조시화시담량대나옥미관층적SPAD 치、협면적지수(LAI)、광합세、경협경각、협향치、관층 PAR 、관층개도、산량급산량구성요소적영향.결과표명:재동일밀도동일행거조건하,관층 SPAD 치、협향치、PAR 수착시담량증가이증가,각처리간차이현저,이협경각수착시담량증가이감소;불동시담량대관층개도영향불대,차이불현저,이대나옥미산량영향차이현저.재수분후12~18 d ,행거70 cm ,시담량위 N3,협면적지수체최대,광합세최강,차교기타생육기차이명현.
@@@@With the same density ,the influences of nitrogen application and row spacing on population canopy SPAD , LAI ,photosynthetic power ,angle and value of leaves ,PAR ,DIFN ,yield and yield components were analyzed .The results showed that SPAD ,value of leaves ,PAR increased with the increasing nitrogen application amount in the same density and row spacing ,but all treamts were distinctive .Angle of leaves decreased with the increasing fertiliza‐tion ;the influences of different fertilization amount on DIFN had little effect ,and the difference was not significant , but yield of waxy maize was significant .12 - 18 d after pollination ,LAI was bigger ,photosynthetic power was the strongest with the row spacing 70cm and N3 application ,and there was obvious differences in other growth periods .