Effects of Bacillus amyloliquefaciens Biofertilizer on Tea Yield and Quality

doi:10.11924/j.issn.1000-6850.2013-0685

Abstract

Abstract: Biofertilizer play an important role in eco-agriculture, its application can not only improve the quality of agricultural products but also reduce the pollution of agricultural non-point source. To explore the impacts of Bacillus amyloliquefaciens biofertilizer on tea yield and quality, the experiment was conducted with 5 treatments to study the effects of treatments on bud density, 100-bud weight, water extracting materials, amino acids, tea polyphenol, theine content and TA/AA. The treatments included 1%, 2% and 4% of Bacillus amyloliquefaciens biofertilizer, sweet potato starch wastewater and none-fertilization as the controls. Results showed that the Bacillus amyloliquefaciens biofertilizer treatments improved tea yield and quality significantly, while treatment of sweet potato starch wastewater had not obvious improvement in tea yield and quality. 2% Bacillus amyloliquefaciens biofertilizer treatment increased the quantity of buds by 42.1%, 100-bud weight by 22.3%, water extracting materials by 21.94%, amino acids content by 8.83%, tea polyphenol content by 9.76%, TA/AA by 3.05% and decreased theine content by 8.32%, respectively, compared with the none-fertilization. Application of Bacillus amyloliquefaciens biofertilizer, which was produced using sweet potato starch wastewater, on tea yard is not only recycled sweet potato starch wastewater but also improved tea yield and quality

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