关键词: 土壤质量, 监测, 诊断, 土壤理化性状, 施肥, 辣椒-甘蓝轮作

Abstract: This study investigated the monitored and diagnosed effects of three different fertilization treatments on the soil quality of the chili-cabbage rotation pattern by the field plot test. The results showed that through monitoring and diagnosis of soil physical and chemical properties of two crops,the trend of soil physical indexes in the chili season was coincident with the cabbage season. Fertilization could improve the soil physical properties, but the recommended fertilization（OPT） treatment effect was more effective. Compared with the no fertilizer control （CK）, OPT treatment significantly reduced the soil bulk density, increased soil porosity, saturated water content and field water holding capacity（P<0.05）. All fertilization treatments had soil acidification, FP treatment was the most significant, and the soil pH was reduced by 12.41% compared with CK. The nutrients in each treatment increased with the extension of planting time. After the two rotation of the species, the electrical conductivity （EC） value, total nitrogen andcationicexchange content（CEC） of the FP treatment and OPT treatment were significantly higher than the CK（P<0.05）, but the exchangable calcium and magnesium contents were no significant difference with the CK treatment（P>0.05）. The content of soil organic matter was significantly higher in the OPT treatment than in the FP treatment and CK （P<0.05）, which was 50.68% higher than CK. This experiment proved that replacing part of fertilizer with organic fertilizer could improve soil quality.

Key words: soil quality, monitoring, diagnosis, soil physical and chemical properties, fertilization, pepper-cabbage rotation system