%0 Journal Article %T Effects of Different Planting Years on Physicochemical Properties and Enzyme Activities in Soil of Rice-Cherry Tomato Rotation %A Xiao Deng %A Chunyuan Wu %A Yi Li %A Huadong Tan %A Jiancheng Su %J Open Journal of Ecology %P 334-344 %@ 2162-1993 %D 2023 %I Scientific Research Publishing %R 10.4236/oje.2023.136021 %X Crop rotation periodicity has always been one of the research focuses currently. In this study, the physicochemical properties, nutrient contents and enzyme activities were investigated in soils from rice-cherry tomato rotation for one year (1a), three years (3a), five years (5a), seven years (7a) and ten years (10a), respectively. The major objective was to analyze the optimal rotation years of rice-cherry tomato from soil perspective, so as to provide theoretical basis for effectively avoiding continuous cropping obstacles of cherry tomato via studying the response characteristics of soil physicochemical properties, nutrient contents and enzyme activities to planting years of rice-cherry tomato rotation system. The results were as follows: 1) Soil pH value was increased year by year during 1a to 5a, reached the highest value 5.32 at 5a. However, soil acidity was sharply enhanced during 7a to 10a (P < 0.05), the pH value began to decline below 5.0 at 7a of rice-cherry tomato rotation. 2) The content of soil organic matter decreased by 11.2% to 50.4% with the increasing of crop rotation years during 3a to 10a (P < 0.05), and began to reduce below 2.0 g&#8226;kg-1 at 5a. 3) The content of soil available phosphorus was increased year by year with increasing of crop rotation years, and increased by 110% to 173% during 3a to 10a (P < 0.05). However, the contents of soil available iron and available zinc decreased gradually with increasing of crop rotation years, and decreased by 17.2% to 53.2% and14.9% to 23.9%, respectively, during 3a to 10a (P < 0.05). 4) The activities of soil urease, acid phosphatase and catalase were all the highest at 5a. However, those were obviously decreased year by year after 5a of rice-cherry tomato rotation (P < 0.05). In conclusion, long-term single rotation pattern of rice-cherry tomato would aggravate soil acidification, prompt soil nutrient imbalance and reduce soil enzyme activity. 5a to 7a would be the appropriate rotation period for rice-cherry tomato, or else it would reduce soil quality, resulting in a new continuous cropping obstacle of cherry tomato. %K Rice-Cherry Tomato Rotation %K Planting Years %K Soil %K Physicochemical Properties %K Enzyme Activity %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=125575