Research Advance of the Relationship between Soil Enzyme Activity and Soil Fertility in Forest Land

2019 ◽  
Vol 09 (06) ◽  
pp. 444-448
Author(s):  
婷婷 曹
2019 ◽  
Vol 65 (No. 9) ◽  
pp. 449-455 ◽  
Author(s):  
Jianning He ◽  
Zhenwen Yu ◽  
Yu Shi

Inappropriate tillage and soil compaction threaten farmland sustainability in the Huang-Huai-Hai Plains of China. We aimed to explore the impact of plowing tillage, rotary tillage, strip rotary tillage, and strip rotary tillage coupled to a two-year subsoiling interval (STS) on soil quality at various soil depths and on wheat yield. Soil bulk density was substantially lower in the 30–45 cm depth under STS than under any other treatment, resulting in lower soil penetration resistance. Highest soil particle macro-aggregation was observed under STS in the 15–45-cm soil layer.Consistently with greater nutrient availability, key enzymes associated with soil fertility (urease, invertase, phosphatase, and catalase) showed higher activity in STS plots. Concomitantly, highest yields were recorded for STS at 10 451 and 10 074 kg/ha in 2014–2015 and 2015–2016, respectively. STS significantly improved soil physical structure and enhanced soil enzyme activity, thereby stimulating soil nutrient release and increasing winter wheat yield.  


2012 ◽  
Vol 518-523 ◽  
pp. 39-43
Author(s):  
Xiao Guang Zhao ◽  
Yuan Yuan Guan ◽  
Wen Yu Huang

In this paper, simulated experiments were performed in pots by using soil materials in different conditions of film remnant. Based on the research on soil microorganism quantity trends of soil enzyme activities were analyzed systematically: soil without film remnant, soil with film remnant for 5, 10, 15 and 20 years. By analyzing crop progress, the relationship with soil material was studied, in order to provide scientific basis for the variation laws between different conditions of film remnant and the activity of soil enzyme.


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