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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