Microbial biomass and activity in an agricultural soil with different organic matter contents

Schnürer, Johan; Clarholm, Marianne; Rosswall, T.

doi:10.1016/0038-0717(85)90036-7

Cited by 359 publications

(114 citation statements)

References 34 publications

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“…Soil conservation practices, such as manure addition, crop rotations and reduction of tillage intensity, have a profound influence on the size and activity of the soil microbial biomass (Schnürer et al 1985;Simard et al 1994). However, there is very little information on impact of LHM application on specific microbial enzymatic reactions or population level in soil under continuous silage corn production and LHM fertilization.…”

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confidence: 99%

Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial

Lalande¹,

Gagnon²,

Simard³

et al. 2000

Can. J. Soil. Sci.

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Lalande, R., Gagnon, B., Simard, R. R. and Côté, D. 2000. Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial. Can. J. Soil Sci. 80: 263-269. Liquid hog manure (LHM) addition to soils in corn silage (Zea mays L.) production may benefit microbial activity by providing C and other nutrients. The objective of this study was to compare the effects of a LHM application to that of inorganic fertilizers (IF) on the biological activity of a Le Bras silt loam soil (Humic Gleysol) under continuous corn production and LHM fertilization. Amounts of 0 to 120 m 3 LHM ha -1 and 150 N-150 P 2 O 5 -150 K 2 O kg ha -1 were applied to silage corn. The 0-to 15-cm and 15-to 30-cm soil layers were sampled 28 d after the 18th yearly LHM application. The LHM inputs, particularly at 90 m 3 ha -1 , resulted in higher enzyme activities and microbial biomass C (MBC) than IF or the unamended control in the 0-to 15-cm soil layer. The 90 m 3 LHM ha -1 also gave higher microbial biomass N (MBN) than IF in this soil layer. Application of LHM had no effect on the activities of the enzymes studied or on the MBC and MBN contents in the 15-to 30-cm layer. Ammonifier population was highest with 60 m 3 LHM ha -1 in both soil layers. Nitrifier population was not affected by LHM in the top soil layer, but was linearly increased by LHM rates in the 15-to 30-cm layer. This study showed that LHM addition may enhance enzyme activities, microbial biomass and the N mineralizer population in the plow layer of a soil in a corn silage monoculture. , a produit des activités enzymatiques et un C de la biomasse microbienne supérieurs au témoin non amendé ou à la fertilisation inorganique dans la couche de sol 0-15 cm. Le LP à 90 m 3 ha -1 a aussi procuré un N de la biomasse microbienne plus élevé que les engrais minéraux dans cette couche de sol. L'apport de LP n'a pas eu d'effet sur l'activité des enzymes étudiés dans la couche 15-30 cm et sur son contenu en C et N de la biomasse microbienne. La population d'ammonificateurs a été la plus élevée avec 60 m 3 LP ha -1 dans les deux couches de sol. La population de nitrificateurs n'a pas été affectée par LP dans la couche 0-15 cm mais a augmenté linéairement avec la dose de LP dans la couche 15-30 cm. Cette étude a démontré que l'apport de LP peut favoriser l'activité enzymatique, la biomasse microbienne et la population minéralisatrice du N de la couche de labour d'un sol en monoculture de maïs-ensilage.

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confidence: 99%

Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial

Lalande¹,

Gagnon²,

Simard³

et al. 2000

Can. J. Soil. Sci.

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“…We found the amended straw enhanced more than 2.7 fold ammonium in the high Hg soil while only a 1.5 fold increase of ammonium in the low Hg soil, and these different enhancement of substrate may lead to a differentiate effect on nitrification potential. Additionally, much higher DOC content in the high Hg soil than that in the low Hg soil after rice straw amendment may support a higher activity of the ammonia-oxidizers, since DOC is considered to play a regulating role in influencing microbial activity (Schnürer et al, 1985). This is also supported by the positive correlation between DOC content and PNR (Fig.…”

Section: Discussionmentioning

confidence: 80%

Influence of rice straw amendment on mercury methylation and nitrification in paddy soils

Liu

Dong

Han

et al. 2016

Environmental Pollution

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“…Organic C, P, and B contents affect soil biological activity. Organic C content is one of the main factors that influence soil metabolism (Schnürer et al, 1985;Wardle, 1992). P is frequently a limiting nutrient in tropical soils (Khasawneh et al, 1980) and can influence bacterial metabolism in the soil (Alden et al, 2001;Oberson et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

Early Changes in Soil Metabolic Diversity and Bacterial Community Structure in Sugarcane under Two Harvest Management Systems

Azevedo

Morais

Lambais

2015

Rev. Bras. Ciênc. Solo

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Preharvest burning is widely used in brazil for sugarcane cropping. however, due to environmental restrictions, harvest without burning is becoming the predominant option. Consequently, changes in the microbial community are expected from crop residue accumulation on the soil surface, as well as alterations in soil metabolic diversity as of the first harvest. Because biological properties respond quickly and can be used to monitor environmental changes, we evaluated soil metabolic diversity and bacterial community structure after the first harvest under sugarcane management without burning compared to management with preharvest burning. soil samples were collected under three sugarcane varieties (sP813250, sP801842 and rb72454) and two harvest management systems (without and with preharvest burning). Microbial biomass C (MbC), carbon (C) substrate utilization profiles, bacterial community structure (based on profiles of 16S rRNA gene amplicons), and soil chemical properties were determined. MbC was not different among the treatments. C-substrate utilization and metabolic diversity were lower in soil without burning, except for the evenness index of C-substrate utilization. soil samples under the variety sP801842 showed the greatest changes in substrate utilization and metabolic diversity, but showed no differences in bacterial community structure, regardless of the harvest management system. in conclusion, combined analysis of soil chemical and microbiological data can detect early changes in microbial metabolic capacity and diversity, with lower values in management without burning. However, after the first harvest, there were no changes in the soil bacterial community structure detected by PCr-DggE under the sugarcane variety

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Microbial biomass and activity in an agricultural soil with different organic matter contents

Cited by 359 publications

References 34 publications

Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial

Soil microbial biomass and enzyme activity following liquid hog manure application in a long-term field trial

Influence of rice straw amendment on mercury methylation and nitrification in paddy soils

Early Changes in Soil Metabolic Diversity and Bacterial Community Structure in Sugarcane under Two Harvest Management Systems

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