中国农业科技导报2012，Vol.14Issue(5)：115-122,8.DOI:10.3969/j.issn.1008-0864.2012.05.18
黄土高原不同苹果园土壤酶、有机质、微生物及树体产量品质的调查研究
Studies on the Activities of Three Kinds of Soil Enzyme, Organic Matters, Microbes and the Yields and Quality of Apple in Different Tree-aged Apple Orchards in Loess Plateau
摘要
Abstract
The activities of soil urease,phosphatase,invertase,soil organic matters and soil microbes were measured in 6 different apple orchards of Luochuan County in Loess plateau. The correlation of the content of soil organic matter,soil enzymes activity,soil microbes and apple quality was analyzed. The results showed that; (1)The activities of the three kinds of soil enzyme in different orchards all present a descending trend with soil depth. The activities of enzyme are relatively higher in the soil ranging from 0 to 20 cm; however the activities decrease rapidly when the depth is below 20 cm,and then the downtrend is flat. (2)The soil organic matters of the six apple orchards are lower,and the mean is 0. 945%. (3)The numbers of microbes in different aged trees orchard can be showed as: middle-aged orchard( 15 a) > old-aged orchard(20 a) > small-aged orchard(7 a). The distributing characteristic of the number of microbes in different aged trees orchard is: bacteria > actinomyce > fungi. The difference between the number of bacteria and fungi is more than 100 times. The number of microbes in surface soil (0 -20 cm) is the highest,and diminishes by the deepening of the soil profile,with a significant vertical distribution. (4)0rganic matters show a positive correlation with the activities of urease,phosphatase and invertase. The values of r are 0. 400 ,0. 565 and 0. 788,respectively. The three kinds of enzyme have shown a strong correlation each other. (5)Enzymes activity,organic matters and soil microbes show a positive correlation with the apple quality.关键词
土壤脲酶/土壤磷酸酶/土壤蔗糖酶/有机质/土壤微生物/苹果品质/相关性分析Key words
urease/phosphatase/invertase/organic matters/soil microbes/apple quality/correlation analysis分类
农业科技引用本文复制引用
田稼,孙超,杨明琰,张晓琦..黄土高原不同苹果园土壤酶、有机质、微生物及树体产量品质的调查研究[J].中国农业科技导报,2012,14(5):115-122,8.基金项目
陕西省科学院科技计划项目(2007k-新2)资助. （2007k-新2）
