Effects of chemical fertilizer reduction combined with soil conditioner ap-plication on strawberry quality and soil nutrient
A field experiment was conducted to study the effects of chemical fertilizer reduction combined with soil conditioner on strawberry fruit quality and soil nutrients in greenhouse in hilly area of Jiangsu province.The experiment in-cluded five treatments,no chemical fertilizer control(CK),conventional chemical fertilizer treatment(F100),50%chemical fertilizer reduction treatment(F50),50%chemical fertilizer reduction combined with silicon,calcium,magnesi-um soil conditioner treatment(F50S1),50%chemical fertilizer reduction combined with bone powder treatment(F50S2).The results showed that compared with F100 treatment,the number of leaves per plant and the weight of single fruit in first cutting were significantly reduced in CK and F50 treatment(P<0.05),and soil conductivity during seedling stage,available phosphorus content and available potassium content were significantly decreased(P<0.05).Compared with F100 treatment,F50S1 treatment signifi-cantly increased soil pH at seedling stage,alleviated the inhibition of soil acidification on strawberry growth,and significantly increased plant height,leaf area and bud rate(P<0.05).There was no significant difference in soil available phosphorus content,available potassium content,leaf total ni-trogen content and the weight of single fruit in first cutting between F50S2 treatment and F100 treatment(P>0.05).Com-pared with F100 treatment,the fruit hardness of second grade fruit in second cutting in F50S2 treatment was significantly increased by 27.03%(P<0.05).F50S2 treatment could significantly prolong the shelf life of strawberries.To sum up,ap-propriate reduction of chemical fertilizer combined with soil conditioner in excessive fertilization soil could effectively main-tain the supply of soil nutrients,promote the growth and development of strawberry,and improve fruit quality.
万方数据
维普
