不同微生物菌肥对桃园土壤微生物活性和果实品质的影响

摘要

In order to select a good bio-fertilizer to improve the peach growth and fruit quality,effects of 4 common bio-fertilizers on peach fruit quality and soil microbes were investigated on a Shanghai peach production base. The result showed that application of 10 mL GEM was the best,improving the soil alkali-hydrolyzable nitrogen,available phosphorus,readily available potassium and organic matter contents and the peach leaves' total phosphorus,total potassium and total nitrogen contents as well as the soluble solids,fruit weight and TSS-acid ratio and reducing the titratable acid content. Except the bio-fertilizer treatment of 250 mL BIO + 250 mL K + 250 mL ZK,the other 3 bio-fertilizer treatments increased the quantities of soil bacteria and fungi. Except the bio-fertilizer treatment of 250 mL BIO,the other 3 bio-fertilizer treatments cut down the quantity of soil actinomyces.%为了选择肥效较好的微生物菌肥以促进桃树生长,在上海桃生产基地进行了4种常见微生物菌肥对桃果实品质及土壤微生物影响的肥效试验.结果表明:GEM 10mL处理肥效最佳,提高了土壤碱解氮、有效磷、速效钾、有机质含量和桃树叶片中氮磷钾含量;大幅度增加了可溶性固形物含量、单果重和固酸比,减少了可滴定酸含量.除了BIO 250 mL+K 250 mL+ ZK 250 mL处理外,其他3个微生物菌肥处理均提高了土壤细菌和真菌数量.除了BIO250mL处理外,其他3个微生物菌肥处理均降低了土壤放线菌数量.