The Effects on the Growth,Yield and Rhizosphere Environment of Eggplant Intercropping Oyster Mushroom,Cabbage and Sweet Potato
In order to avoid the effect on eggplant production with increase of soil-borne diseases caused by continuous planting of eggplant,and form a healthy and ecological solution,the effects of intercropping oyster mushroom,cabbage and sweet potato with eggplant on the growth,yield and rhizosphere environment of eggplant were studied and analyzed by taking common planting as control.The results showed that compared with the control,the intercropping eggplant with three crops had no significant effects on the average daily growth of plant height,stem diameter,the fruit number per plant,the single fruit weight,the average yield per 667 m2 of eggplant and dry weight,water content,EC value,C/N,organic carbon content,inorganic carbon content,organic matter content and available phosphorus content of rhizosphere soil.The intercropping eggplant with cabbage and significantly reduced the dry weight and available potassium content of rhizosphere soil compared with eggplant intercropping oyster mushroom or sweet potato,which reduced by 8.58%and 11.11%compared with control,respectively,which was beneficial to the increase of soil porosity,and the total amount of bacteria extremely and significantly increased by 114.44%compared with the control,while the total amount of fungi and the ratio of total amount of bacteria and fungi of rhizosphere soil increased by 42.18%and 49.56%compared with the control,respectively,which was helpful to reduce the obstacles of continuous planting of eggplant and control of soil-borne diseases.The intercropping eggplant with oyster mushroom could extremely and significantly reduce the pH value of rhizosphere soil by 5.36%compared with the control,and significantly reduce the contents of total carbon and total nitrogen of rhizosphere soil by 16.99%and 17.10%,respectively,but significantly increase the content of available nitrogen by 36.10%,while extremely and significantly increase the total amount of bacteria and fungi of rhizosphere soil by 71.84%and 156.98%,respectively.The intercropping eggplant with sweet potato could extremely and significantly decrease the pH value of rhizosphere soil by 7.39%,but significantly increase the content of available potassium and the total amount of fungi of rhizosphere soil by 27.76%and 56.98%,respectively,and extremely and significantly increase the total amount of bacteria by 99.67%.Based on the above analysis,it was considered that intercropping eggplant with cabbage were beneficial to improve soil aggregate structure,enrich and stabilize soil ecosystem,and contribute to the healthy growth of crops,but potassium fertilizer should be supplemented in time during intercropping.However,eggplant intercropping oyster mushroom or sweet potato could reduce pH value and improve soil fertility of rhizosphere soil,which could be used to improve the saline-alkali soil or the'raw'soil.
万方数据
维普
