Effect Of Gasification Residue Compound Conditioner on Soil Properties and Growth of Tall Festuca in Aeolian Sandy Soil
Using tall fescue as an indicator crop,and using field plot and randomized block experimental methods,a study was conducted to investigate the effects of applying different amounts of gasification slag com-bined with soil conditioner ET1(1 000 kg/acre),ET2(2 000 kg/acre),ET3(4 000 kg/acre),ET4(8 000 kg/acre)on the soil properties of aeolian sandy soil.The results indicated that:(1)the application of gasifica-tion residue combined with soil conditioner effectively improved the physical properties of sandy soil.Compared with CK,the average increase in soil moisture content was 18.12%;The average decrease in soil bulk density was 3.23%;The average increase in ground temperature was 2.68%;(2)The application of gasification resi-due combined with soil conditioner effectively improved the chemical properties of aeolian sandy soil;(3)The application of gasification residue combined with soil conditioner effectively improved the agronomic characteris-tics of tall fescue.Based on the data,an increase in soil temperature can ensure safe overwintering of crops,im-prove seed survival rate,and also lead to early greening of crops.Compared to unfertilized crops,it leads to ear-lier growth period.Therefore,the combination of gasification slag and soil conditioner can effectively improve the physical and chemical properties of sandy soil,significantly improve the agricultural characteristics of tall fescue.The use of 8 000 kg/acre of gasification slag combined with soil conditioner represents the optimal choice.
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