摘要
采用大田试验,以不施肥为对照,研究施用不同配方的茶树专用水溶肥对茶园土壤pH、有机质含量、全氮含量以及土壤中脲酶、蔗糖酶活性和茶叶品质指标的影响,并阐明土壤酶指标与茶叶品质指标间的相互关系。结果表明:茶叶中氨基酸和茶多酚含量分别与土壤脲酶活性和蔗糖酶活性呈显著正相关。"微喷+专用水溶肥"的模式可以降低茶园土壤pH,增强土壤保肥供肥能力,同时能够提高土壤酶活性,改善茶叶品质,为北方幼龄茶园种植推广提供理论依据。
Based on field experiments, the study aimed to analyze the effect of special water soluble fertilizers with different proprietary formula on soil pH, soil organic matter, total nitrogen content, urease, invertase enzymes activities and tea quality indicators, and to clarify the mutual relationship between the index of soil enzymes and the tea quality, in contrast to that without fertilization. The results showed that the amino acids and tea polyphenols content were significantly and positively correlated with the soil urease and invertase enzymes activities, respectively. The mode of ~micro-sprinkler irrigation plus special water soluble fertilizers＇ can reduce soil pH, increase the soil capacity to supply nutrient, improve soil enzymes activities and tea quality, which can provide theoretical basis for cultivation in young tea plant in the north.
出处
《中国农学通报》
CSCD
2014年第25期252-256,共5页
Chinese Agricultural Science Bulletin
基金
国家公益性行业科研专项"农作物最佳养分管理技术与应用"(201103003)
山东省农业重大技术创新课题"茶叶优质高产肥水调控关键技术研究与应用"(621298)
关键词
微喷灌
茶树
水溶性肥料
土壤酶活性
茶叶品质
micro-sprinkler irrigation
tea plant
water soluble fertilizers
soil enzyme activity
tea quality
