%0 Journal Article
%T 玉米/大豆不同配置下的玉米生长和产量形成研究
%A 程玉柱
%A 李龙
%A 周琴
%A 郭娜
%A 邢邯
%A 江海东
%J 南京农业大学学报
%D 2016
%R 10.7685/jnau.201504030
%X [目的]研究不同田间配置下的间作玉米生长与产量形成,探索长江下游地区适宜的玉米/大豆间作模式,为玉米/大豆间作种植提供理论依据。[方法]以玉米品种‘郑单958’和大豆品种‘南农99-6’为材料,设置玉米行距40 cm、玉米/大豆距离60 cm的窄行距间作处理(IM1),玉米行距50 cm、玉米/大豆距离50 cm的窄行距稍宽处理(IM2)两种不同间作方式,以玉米宽、窄行单作(M1)和玉米常规普通种植(M2)处理为对照,通过2年大田试验,研究了不同玉米/大豆田间配置方式对玉米干物质积累、叶面积指数、光合效应及产量效益的影响。[结果]玉米/大豆间作条件下(IM1、IM2)玉米单株干物质量和叶面积指数在营养生长阶段较M1处理略低,但在生殖生长阶段则显著高于M1处理,光合速率显著提高。IM2处理的各生育期干物质量、叶面积指数、光合速率比IM1处理高,产量和效益显著提高。IM1处理和IM2处理玉米产量与M2处理玉米产量相当,但大豆产量增加,总体效益显著提高,尤以IM2处理的玉米大豆间作模式最好。[结论]长江下游地区玉米大豆间作应采取玉米行距50 cm、玉米/大豆距离50 cm(IM2)的种植模式。</br>[Objectives]In order to determine the optimal maize-soybean intercropping(MSI)pattern in the lower Yangtze River area,a field experiment was conducted to survey the growth and yield of maize under different intercropping models. [Methods]Using maize variety‘Zhengdan 958’and soybean variety‘Nannong 99-6’as materials,two intercropping patterns which were 40 cm row space of maize with 60 cm space between maize and soybean(IM1)and 50 cm row space of maize with 50 cm space between maize and soybean(IM2)were set and wide/narrow row monoculture maize(M1)and normal planting system of maize(M2)were set as control. Dry weight,leaf area index(LAI),net photosynthetic rate and yield benefits were surveyed by two-year field experiment. [Results]The results indicated that the dry weight and LAI of maize under two MSI patterns were lower than those under M1 pattern during vegetative stage,but higher during reproductive stage. As for two MSI patterns(IM1,IM2),the dry weight,LAI and net photosynthetic rate of maize planted under IM2 pattern were higher than under IM1 pattern,thus leading to significantly higher maize yield and economic output in IM2. The yield of maize which planted under suitable MSI pattern(IM2)was similar to that planted under normal planting system(M2). And then IM2 had the highest benefit together with extra soybean output. [Conclusions]In the lower Yangtze River basins,suitable MSI pattern with bigger narrow-row(50 cm row space of maize and 50 cm space between maize and soybean)should be adopted
%K 玉米/大豆间作
%K 光合作用
%K 产量
%K 效益&lt
%K /br&gt
%K maize/soybean intercropping
%K photosynthesis
%K yield
%K benefits
%U http://nauxb.njau.edu.cn/oa/darticle.aspx?type=view&id=201601005