Effects Of Soybean And Maize Ridge Intercropping On Physiology And Ecology Of Intercropping System And Wheat Scab

The experiment was conducted in June 2016-June 2017 in Suzhou Agricultural Academy of Anhui province.In this study,we studied 4 kinds of planting methods,such as MS,maize single cropping(MM),maize soybean flat cropping intercropping(AP)and maize soybean ridge intercropping(AR),with maize variety as the 206 and soybean varieties as medium and yellow.The different planting methods were studied.The effect of corn,soybean yield and physiological mechanism,at the same time harvested corn and Soybean after planting wheat tobacco farmer 19,studied the effect of 4 planting methods on wheat scab,in order to provide theoretical basis for rich corn intercropping technology.Technical support.The main findings are as follows:1.Compared with MM,maize plant height and dry matter weight in AR system tended to decrease compared with MM,but maize plant height and dry matter weight were significantly higher in MM planting mode than in AP mode.There was no significant difference between leaf area and AP of maize in AR system,but it was significantly lower than MM model.Compared with MS,the height of soybean plant in AR system was higher than that of MS,but it was significantly higher than that of MS.Compared with MS,the leaf area of the soybean in AR system was increased,the dry matter weight and MM were not significant in the AR corn,but the dry matter of corn in AP was significantly lower than MM;There was no significant difference in dry matter weight between AR,AP and MS.2.Compared with MM,the chlorophyll content and photosynthetic rate of maize in AR model and AP model showed an increasing trend.However,the chlorophyll content and photosynthetic rate of soybean under AR model were not significantly different from those of single cropping,but they were significantly higher than those of MS model.3.Intercropping decreased the temperature and humidity of the system,but the decrease was not obvious,but the decrease of AP in AR was larger than that in MS.The photosynthetic available radiation of soybean canopy of maize and soybean intercropping population was significantly lower than that of MS.and the photosynthetic effective radiation of intercropping maize canopy was significantly higher than that of AP model in AR model of MM model.4.In the intercropping population of maize and soybean,there was no significantdifference between the resistance index of AR soybean and that of MS,and compared with MM,the increase of AR index of maize was significantly higher than that of AP,and during the whole growth period,there was no significant difference between AR and MS.There was no lodging in soybean.5.Compared with MM,the yield of maize in AR model was significantly lower than that in AP model,but the yield of AR model was significantly higher than that of AP model.The economic benefit of AR model was the highest and significantly higher than that of AP model,MM model and AP mode,but the economic benefits of both models were significantly higher than those of MS planting mode.As far as land equivalent ratio is concerned,AR is significantly higher than AP model.6.There was no significant difference in the incidence of scab among the three cropping modes of MS,AR and AP,but all of them were significantly lower than that of MM,which indicated that the multiple cropping of wheat and maize was an important reason for the occurrence of scab.7.Although the carbon dioxide and nitrous oxide emissions were not significantly changed in the intercropping model compared with the monoculture model,the methane accumulation capacity of the intercropping system was significantly better than that of the monoculture model of the two crops.