Wang Xu-Xi, Wu Fu-Zhong, Yang Wan-Qin, Wang Ao
Key Laboratory of Ecological Forestry Engineering, Institute of Ecological Forestry, Sichuan Agricultural University, Ya' an 625014, Sichuan, China.
Ying Yong Sheng Tai Xue Bao. 2012 Feb;23(2):433-8.
This paper studied the variations of soil microbial biomass C, N, and P contents and soil hydrolase activities under different cropping modes, i.e., corn + sweet potato intercropping (CS), soybean mono-cropping (SM), continuous cropping of ginger (CG), and rice-milk vetch rotation (RM) , after ginger planting in the purple soil area at the lower reaches of Minjiang River. Ginger planting decreased the soil microbial biomass C, N and P contents significantly. The decrement of the soil microbial biomass C and N contents after ginger planting was lesser under CS and RM than under SM and CG, but the soil microbial biomass P content was in adverse. Ginger planting also decreased the soil acid phosphatase activity significantly, and the decrement was the greatest under CS but the least under RM. The soil invertase activity decreased significantly under CG, and the soil urease activity had a significant decrease under SM, CG and RM. After ginger planting, the soil urease and intervase activities under CS were higher, as compared with those under the other cropping modes.
本文研究了岷江下游紫色土区生姜种植后，不同种植模式（即玉米+红薯间作（CS）、大豆单作（SM）、生姜连作（CG）和水稻-紫云英轮作（RM））下土壤微生物生物量碳、氮、磷含量及土壤水解酶活性的变化。生姜种植显著降低了土壤微生物生物量碳、氮和磷含量。生姜种植后，CS和RM模式下土壤微生物生物量碳和氮含量的下降幅度小于SM和CG模式，但土壤微生物生物量磷含量情况相反。生姜种植还显著降低了土壤酸性磷酸酶活性，CS模式下的降幅最大，RM模式下的降幅最小。CG模式下土壤蔗糖酶活性显著降低，SM、CG和RM模式下土壤脲酶活性显著下降。生姜种植后，与其他种植模式相比，CS模式下土壤脲酶和蔗糖酶活性较高。
