Abstract: The study of planting patterns is critical to improve maize yield.Under the method of split plot ex-periment, based on the three configuration model of three ratio space, big ridge double line and equal line, the arti-cle adopts middle-density maize variety (Shenyu 21),designs 51 000 plants/ha(Conventional planting density lev-el),56 000 plants/ha(Increases 10% on conventional density levels)and 61 000 plants/ha(Increases 20% on conventional density levels ), discusses the effect of monoculture maize field optimal configuration on growth devel-opment, community photosynthetic characteristics and yield.Research result shows that, with the increase of density, yield per unit area, community leaf area index and community photosynthetic efficiency are increased.In the differ-ent configurations, three ratio space is significantly superior to other modes such as grain yield, leaf area index, chlo-rophyll content of ear leaf and community photosynthetic rate.Under the condition of certain planting density ( In-creases 10%), three ratio space mode is better to help middle-density maize variety to expand photosynthetic area, increase chlorophyll content of ear leaf, enhance photosynthetic rate, and improve the unit yield finally.From this experiment, our results indicated that the best configuration pattern to improve maize yield are three ratio space planting mode and 56 000 plants/ha level in the western Liaoning province.

Key words: Liaoning westeRn distRict, Maize, Field optimum, Effect

CLC Number: 

• S513