枯草芽孢杆菌与解磷细菌对猕猴桃园土壤及果实品质的影响

在大田条件下,采用两因素两水平完全正交试验设计方案,从立体生态角度研究了在猕猴桃树体根围施用枯草芽孢杆菌和解磷细菌后对土壤理化性质、土壤微生物数量及果实品质的影响。结果表明,混合施用枯草芽孢杆菌和解磷细菌后,土壤速效磷、铵态氮含量及磷酸酶活性分别是对照的1.93倍、1.34倍及2.15倍;果实成熟后,其硬度、可溶性糖含量、VC含量分别是对照的1.21倍、1.06倍、1.18倍,可滴定酸含量降低,是对照的88%。多元回归统计分析表明,果实品质与土壤有机质、速效磷及磷酸酶活性相关性显著。混合施用枯草芽孢杆菌和解磷细菌可用来改良高龄猕猴桃果园土壤,且能提高果实品质。

Bacillus subtilis and phosphobacteria effects on soil and fruit quality in kiwifruit orchards

The reaserch was to explore the effects of Bacillus Subtilis and Phosphobacteria ,which supplied to the rooting zone of Kiwi fruit ,on soil physical ,chemical and microbial population in the rhizosphere soil and the fruit quality by orthogonal experiment of two factors and two levels in the field .The physical ,chemical and microbial population of soil ,leaves and fruits were measured respectively .Results showed that the trees dealt with both of Bacillus Subtilis and Phosphobacteria to the rooting zone had the best signification .The soil available P ,ammonium N contents and phos-phatase activity was 1 .93 ,1 .34 and 2 .15 times the amount of the unprocessed .The firmness ,soluble sugar and Vitamin C content was 1 .21 ,1 .06 ,1 .18 times the amount of the unprocessed .The unprocessed titratable acid was 88% of the trees dealt with both of Bacillus Subtilis and Phosphobacteria .The data being analyzed ,fruit quality had a signification positive correlation with organic matter ,available P contents and phosphatase activity .It is considerable to use both of Bacillus Subtilis and Phosphobacteria to improve the soil characteristic and the fruit quality .