Microbial Organic Fertilizers Combined With Silicon Fertilizer And Alizarin Enhanced The Continuous Cropping Eggplant Growth And The Soil Environment In Sunlight Greenhouse In Baiyin Area

In order to alleviate the continuous cropping obstacles of eggplant cultivation in sunlight greenhouse in Shuichuan Town of Baiyin District,the microbial effect of microbial organic fertilizer on eggplant facilities developed by the College of Resources and Environment of Gansu Agricultural University was defined.In this paper,six microbial organic fertilizers were applied in combination with silicon fertilizer.In addition,the fertilization program for the meat and vegetables was conducted in the Daping Village Modern Agricultural Science and Technology Demonstration Zone in the town.The fertilizer experiment was conducted in the 92#greenhouse that has been used for 4 years as an eggplant.The trial design fertilization scheme is as follows:CK:conventional fertilization(decayed sheep manure15/667m~2);T1:conventional+microbial organic fertilizer 300kg/667m~2;T2:conventional+silicon fertilizer 5kg/667m~2;T3:conventional+BR(0.1?M foliar spray);T4:Conventional+microbial organic fertilizer 300kg/667m~2+silicon fertilizer 5 kg/667m~2;T5:conventional+microbial organic fertilizer 300kg/667m~2+BR(0.1?M foliar spray).Determination of plant height,stem diameter,photosynthetic pigments(chlorophyll a,chlorophyll b,carotenoids),root activity,and determination of soil bacteria,fungi,actinomycetes and catalase,urease in soil during eggplant growth period,sucrase,alkaline phosphatase activity,the results show that:1.In the aspect of plant growth,the plant height and stem diameter of T4treatment(microorganism organic fertilizer and silicon fertilizer application)were significantly different compared to CK,and the plant height of T4 treatment at the late growth stage of eggplant was 130.7cm,which was 12.78%higher than that of CK.%.The plant height of T5 treatment(microorganism organic fertilizer and BR combined application)was 105.7 cm,which was significantly increased by 6.66%compared to CK;in terms of photosynthetic pigments,T4 treatment significantly increased chlorophyll a,chlorophyll b,carotenoid content and chlorophyll in eggplant leaves.The value of a+b showed the highest levels of chlorophyll a,b,total chlorophyll,and carotenoids,followed by T5 and T3.Root vigor was measured at the eggplant growing stage.The results showed that the root activity of different fertilization treatments was significantly higher.The CK,especially T4,had the highest root activity,followed by T5 and T2 treatments.2.From the production point of view,the yield of microbial organic fertilizer and silicon fertilizer(T4)was the highest,which was significantly increased 8.82%compared with CK,in which the difference between T5 treatment(microbial organic fertilizer and BR)and T4 was not significant,and the output was second only to T4,compared with CK,was significantly increased by 7.34%.The difference between T1,T2,and T3 treatments was not significant.Compared with CK,it was significantly increased by 4.6%,3.27%,and 4.49%.In terms of quality,the vitamin C content of eggplant fruits in each treatment was Significantly higher than CK,in which T5treatment(microbial organic fertilizer+BR)content was significantly increased by6.5%compared to CK;soluble sugar content T4 treatment(microbial organic fertilizer+silicon fertilizer)was significantly higher than CK and T1,T2,T3treatment,respectively,increased 8.2%,5.73%,3.75%,4.14%;It can be seen from the soluble protein content that the soluble protein content of eggplants treated with T4 and T5 was significantly higher than that of the control and other treatments,which was 3.40%and 2.91%higher than the control;the nitrate content was in addition to T3(BR)Compared with CK,other treatments could significantly reduce nitrate content in eggplant compared with CK.T1,T4,and T5 treatments had 29.67%,45.55%,and 22.40%lower levels of nitrate than CK.T3 treatment did not differ significantly from CK.3.By measuring the number of bacteria,fungi,and actinomycetes in the soil and calculating the B/F(bacterial/fungal)value,it can be found that the number of bacteria and actinomycetes in the soil during eggplant growth period is significantly increased,the number of fungi is significantly reduced,and the soil gradually becomes Fungal type to bacterial type.The amount of bacteria treated with T4 in the later growth period was significantly higher than that of CK,T2,T5,and T3,with an increase of 167.07%,48.17%,98.22%,and 168.67%,respectively.The number of fungi T4,T5,and T1 was significantly lower than that of CK,with a decrease of173.25%.,147.98%,125.79%,the number of fungi treated with T4 was the least at the later stage and significantly lower than CK and other treatments,which was171.51%lower than that of CK.From the whole growth period,the number of actinomycetes treated with T4 and T5 was significantly higher than that of CK.And other treatments;from the B/F value point of view,T4 treatment B/F values significantly higher than CK and other treatments,an increase of 622.44%than CK.4.Compared with CK,soil catalase activity was significantly increased in T4treatment(microorganism organic fertilizer and silicon fertilizer),T5 treatment(microorganism organic fertilizer and BR),soil urease activity T4,T5 treatment was significantly higher than CK and other Treatment,CK,T1,T2,T3 no significant difference between the treatment;in the late stage of eggplant colonization,T4 soil invertase activity increased by 398.18%than CK,significantly higher than CK,no significant difference between other treatments;soil alkaline phosphoric acid The enzyme activity showed a decreasing trend overall.Compared with CK,the enzyme activities of T4 and T5 treatments increased by 90.10%and 85.30%,respectively,which was significantly higher than that of CK.