Effects of Silicon on Root Growth,Soil Enzyme Activity,Yield and Quality of Peanut Under Continuous Cropping
To explore the relieve obstacle mechanism and the optimal application amount of silicon,the effect of five silicon application a-mount(0,15,30,45,60 kg/hm2)treatments on root dry matter accumulation,root morphology,soil enzyme activity,yield and quality of roots under continuous cropping conditions were studied.The results showed that compared with F1(CK),F3,F4,and F5 treatment significantly promoted the accumulation dry mass and increased length,diameter,surface area and volume of root,and then reduced the decline in the later reproductive period;F4,F5 treatment significantly increased the activity of α-glucosidase,β-glucosidase,hydrogen peroxidase,cellobiohyro-lase,acid phosphatase of root soil and the fat,oleic acid content,yield of peanut,among F4 showed the highest,which reached 4 763.05 kg/hm2.In summary,the application of silicon fertilizer could increase soil enzyme activity,promote root growth,and improve the yield and quality of peanut under continuous cropping.The optimal silicon fertilizer application amount suitable for higher peanut production in current study was 45 kg/hm2.
SiliconPeanut under continuous croppingRoot growthSoil enzyme activityYieldQuality
万方数据
维普
