Effects of Drying and Air‐dry Storage of Soils on Their Capacity for Denitrification of Nitrate

Patten, D. K.; Bremner, J. M.; Blackmer, A. M.

doi:10.2136/sssaj1980.03615995004400010015x

Cited by 64 publications

(25 citation statements)

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“…Air-drying and grinding substantially increased the mean from that of the fresh or frozen samples. These results appear to be consistent with those of Patten, Bremner, and Blackmer (1980), who reported up to a two-fold increase in the denitrifying capacity of seven soils when air-dried. They attributed the increase in denitrification to the effect of air-drying on the quantity of organic matter readily utilized by denitrifiers.…”

Section: Storage Pretreatmentssupporting

confidence: 92%

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Spatial and Temporal Variability of Water-Soluble Organic Carbon in a Cropped Field

Rolston¹,

Liss²

1989

Hilg

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Little is known about the spatial and temporal variability of water-soluble organic carbon (WSC) within agricultural fields. The purpose of this research was to characterize the distribution, the mean, and the variance of WSC that occurs within a cropped field as a function of space and time. Freezing of soil samples showed no significant change in water-soluble organic carbon compared with that in fresh samples taken from a depth of 0.2 m. Thus, water-soluble organic carbon was extracted from frozen soil samples taken from a 200-point grid established on a 1.2-ha field, a 60-point grid within a 0.4-ha field, and a 55-point transect of a field amended with 45 Mglha of manure. The initial sampling was in the fall after the harvest of a sorghum crop.The concentrations ranged from 23 to 274 mg/kg within the 1.2 ha field. Over 90% of the concentrations were grouped around the mean of 39.8 mg/kg. The higher values caused the distribution to be greatly skewed, such that a In-normal distribution characterized the data better than a normal distribution. To be within 10% of the population mean at the 95% confidence level, 26 samples would be required if In-normal distribution was assumed compared with 88 samples under normal distribution. Soil-water content was found to be well described by a normal distribution for the 200-point grid.The means, variances, and frequency distributions of WSC changed dynamically throughout a I-year period during which wheat and sorghum were grown. Mean WSC concentrations were highest in the spring and fall and lowest in the summer. The fall samplings had large variances and were best described by In-normal frequency distributions, whereas other samplings during the year could be adequately described by normal distributions. The WSC concentrations showed only slight spatial dependency for samples taken 1.37 m apart and thus can be assumed Continued inside back cover

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Section: Storage Pretreatmentssupporting

confidence: 92%

“…Patten, Bremner, and Blackmer (1980) demonstrated that air-drying and storage in the air-dry state significantly alters a soil's capacity to denitrify. Although no data are presented on the status ofWSC, they suggest that drying and storage affect "the quantity of organic matter readily utilized by denitrifiers."…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Variability of Water-Soluble Organic Carbon in a Cropped Field

Rolston¹,

Liss²

1989

Hilg

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“…were air-dried and rewetted, the denitrification was enhanced by 3-5 times (Table 2), as reported by PATTEN et al (1984). Figure 2 shows the effect of nitrate on denitrification in the field-moist Brown Andosols (moisture content: 55.9~o of WHC).…”

Section: Resultssupporting

confidence: 57%

Effects of organic matter, moisture content and other environmental factors on denitrification in topsoils of an upland field

Nishio

Kanamori

Fujimoto

1988

Soil Science and Plant Nutrition

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“…The availability of organic C is often considered to be a major factor influencing denitrification under anaerobic conditions. An earlier study conducted by Patten et al [1980] demonstrated that denitrification was dependent on the quantity of organic C readily utilized by denitrifying microorganisms, while the organic C in various other pools was not completely available to microorganisms. Incorporation of crop residues provides a source of readily available C and N in the soil, and subsequently influences N 2 O emissions [Cochran et al, 1997;Flessa and Beese, 1995;Huang et al, 2004b;Lemke et al, 1999].…”

Section: Effect Of Crop Residue Incorporation On Ch 4 and N 2 O Emissmentioning

confidence: 99%

A 3‐year field measurement of methane and nitrous oxide emissions from rice paddies in China: Effects of water regime, crop residue, and fertilizer application

Zou

Huang

Jiang

et al. 2005

Global Biogeochemical Cycles

660

441

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[1] A 3-year field experiment was conducted to simultaneously measure methane (CH 4 ) and nitrous oxide (N 2 O) emissions from rice paddies under various agricultural managements including water regime, crop residue incorporation, and synthetic fertilizer application. In contrast with continuous flooding, midseason drainage incurred a drop in CH 4 fluxes while triggering substantial N 2 O emission. Moreover, N 2 O emissions after midseason drainage depended strongly on whether or not fields were waterlogged due to intermittent irrigation. Urea application tended to reduce CH 4 emissions but significantly increased N 2 O emissions. Under a water regime of flooding-midseason drainagereflooding-moist intermittent irrigation but without water logging (F-D-F-M), both wheat straw and rapeseed cake incorporation increased CH 4 emissions by 252%, and rapeseed cake increased N 2 O by 17% while wheat straw

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Effects of Drying and Air‐dry Storage of Soils on Their Capacity for Denitrification of Nitrate

Cited by 64 publications

References 0 publications

Spatial and Temporal Variability of Water-Soluble Organic Carbon in a Cropped Field

Spatial and Temporal Variability of Water-Soluble Organic Carbon in a Cropped Field

Effects of organic matter, moisture content and other environmental factors on denitrification in topsoils of an upland field

A 3‐year field measurement of methane and nitrous oxide emissions from rice paddies in China: Effects of water regime, crop residue, and fertilizer application

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