scholarly journals Soil carbon and nitrogen mineralization caused by pig slurry application under different soil tillage systems

2010 ◽  
Vol 45 (5) ◽  
pp. 515-521 ◽  
Author(s):  
Elcio Liborio Balota ◽  
Oswaldo Machineski ◽  
Priscila Viviane Truber
Keyword(s):  
N Mineralization ◽  
Conventional Tillage ◽  
Soil Tillage ◽  
Pig Slurry ◽  
Tillage Systems ◽  
Soil C ◽  
C And N Mineralization ◽  
C And N ◽  
Ct System ◽  
Triticum Sativum

The objective of this work was to evaluate the change in soil C and N mineralization due to successive pig slurry application under conventional tillage (CT) and no tillage (NT) systems. The experiment was carried out in a clayey Latossolo Vermelho eutrófico (Rhodic Eutrudox) in Palotina, PR, Brazil. Increasing doses of pig slurry (0, 30, 60 and 120 m³ ha-1 per year) were applied in both tillage systems, with three replicates. Half of the pig slurry was applied before summer soil preparation, and the other half before the winter crop season. The areas were cultivated with soybean (Glycine max L.) and maize (Zea mays L.) in the summers of 1998 and 1999, respectively, and with wheat (Triticum sativum Lam.) in the winters of both years. Soil samples were collected at 0-5, 5-10, and 10-20 cm depths. Under both CT and NT systems, pig slurry application increased C and N mineralization. However, increasing pig slurry additions decreased the C to N mineralization ratio. Under the NT system, C and N mineralization was greater than in CT system.

scholarly journals Soil carbon and nitrogen mineralization under different tillage systems and Permanent Groundcover cultivation between Orange trees

2011 ◽  
Vol 33 (2) ◽  
pp. 637-648 ◽  
Author(s):  
Elcio Liborio Balota ◽  
Pedro Antonio Martins Auler
Keyword(s):  
Cover Crop ◽  
N Mineralization ◽  
Conventional Tillage ◽  
Tree Canopy ◽  
Soil Tillage ◽  
Tillage Systems ◽  
C And N Mineralization ◽  
C And N ◽  
Strip Tillage ◽  
Row Space

The objective of this work was to evaluate the alterations in carbon and nitrogen mineralization due to different soil tillage systems and groundcover species for intercropped orange trees. The experiment was established in an Ultisol soil (Typic Paleudults) originated from Caiuá sandstone in northwestern of the state of Paraná, Brazil, in an area previously cultivated with pasture (Brachiaria humidicola). Two soil tillage systems were evaluated: conventional tillage (CT) in the entire area and strip tillage (ST) with a 2-m width, each with different groundcover vegetation management systems. The citrus cultivar utilized was the 'Pera' orange (Citrus sinensis) grafted onto a 'Rangpur' lime rootstock. The soil samples were collected at a 0-15-cm depth after five years of experiment development. Samples were collected from under the tree canopy and from the inter-row space after the following treatments: (1) CT and annual cover crop with the leguminous Calopogonium mucunoides; (2) CT and perennial cover crop with the leguminous peanut Arachis pintoi; (3) CT and evergreen cover crop with Bahiagrass Paspalum notatum; (4) CT and cover crop with spontaneous B. humidicola grass vegetation; and (5) ST and maintenance of the remaining grass (pasture) of B. humidicola. The soil tillage systems and different groundcover vegetation influenced the C and N mineralization, both under the tree canopy and in the inter-row space. The cultivation of B. humidicola under strip tillage provided higher potential mineralization than the other treatments in the inter-row space. Strip tillage increased the C and N mineralization compared to conventional tillage. The grass cultivation increased the C and N mineralization when compared to the others treatments cultivated in the inter-row space.

scholarly journals Soil microbial biomass under different tillage and levels of applied pig slurry

2012 ◽  
Vol 16 (5) ◽  
pp. 487-495 ◽  
Author(s):  
Elcio L. Balota ◽  
Oswaldo Machineski ◽  
Maria A. Matos
Keyword(s):  
Microbial Biomass ◽  
Soil Microbial Biomass ◽  
Conventional Tillage ◽  
Soil Tillage ◽  
Microbial Biomass C ◽  
Pig Slurry ◽  
Soil Microbial ◽  
Winter Crop ◽  
Glycine Max L ◽  
Triticum Sativum

ABSTRACT The objective of this work was to evaluate the changes in microbial biomass C, N and P due to the application of pig slurry under different soil tillage systems. The experiment was established in a clayey Oxisol, Eutrophic Red Latossol in Palotina, PR. Different quantities of pig slurry (0, 30, 60 and 120 m3 ha-1 year-1) were applied to the soil prior to the summer and winter crop season under conventional tillage (CT) and no tillage (NT), in three replicates. The area was cultivated with soybean (Glycine max L.) or maize (Zea mays L.) in the summer and wheat (Triticum sativum Lam.) or oat (Avena sativa L.) in the winter. The soil samples were collected in March and October of 1998 and 1999 at depths of 0-5, 5-10 and 10-20 cm. The soil tillage and pig slurry application influenced the microbial biomass C, N and P. The microbial biomass and the microbial activity presented high sensibility to detect changes in the soil due to tillage and the application of pig slurry. The soil microbial biomass and Cmic/Corg relation increased as the quantity of applied pig slurry increased. The metabolic quotient under CT increased with depth while under NT it decreased. The soil microbial biomass was enriched in N and P under NT and as the quantity of applied pig slurry increased.

scholarly journals Forest type affects the coupled relationships of soil C and N mineralization in the temperate forests of northern China

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Quan Quan ◽  
Changhui Wang ◽  
Nianpeng He ◽  
Zhen Zhang ◽  
Xuefa Wen ◽  
...  
Keyword(s):  
N Mineralization ◽  
Temperate Forests ◽  
Forest Type ◽  
Northern China ◽  
Soil C ◽  
C And N Mineralization ◽  
Soil C And N ◽  
C And N

Tree species and time since afforestation drive soil C and N mineralization on former cropland

Geoderma ◽  
2017 ◽  
Vol 305 ◽  
pp. 153-161 ◽  
Author(s):  
M.M. Rahman ◽  
T.G. Bárcena ◽  
L. Vesterdal
Keyword(s):  
Tree Species ◽  
N Mineralization ◽  
Soil C ◽  
C And N Mineralization ◽  
Soil C And N ◽  
C And N

scholarly journals Soil Type and a Labile C Addition Regime Control the Temperature Sensitivity of Soil C and N Mineralization More than N Addition in Wetland Soils in China

Atmosphere ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1043
Author(s):  
Chunmei Wang ◽  
Yunyun Zhang ◽  
Yun Li
Keyword(s):  
Temperature Sensitivity ◽  
N Mineralization ◽  
Wetland Soils ◽  
Co2 Efflux ◽  
N Addition ◽  
Soil C ◽  
C And N Mineralization ◽  
Labile C ◽  
Soil C And N ◽  
C And N

Wetlands store a large amount of carbon (C) and many are vulnerable to potential global warming. It is critical to quantify the temperature sensitivity of soil nitrogen (N) and C mineralization in response to external labile C or N addition in different types of wetland. Through incubation experiments, the effects of temperature and the addition of N or C on soil C and N mineralization were tested using soils from the Sanjiang Plain wetland (SW), Zoigê alpine wetland (ZW), Yellow River estuary wetland (YW), and Baiyangdian Lake (BL). Our findings showed that temperature, available C and wetland type were dominant factors in the regulation of soil C loss, with soil C in SW and ZW being less stable and poorly resistant to increases in temperature. The response of net N mineralization to N addition showed regional differences. A lack of long-term effects of the deposition of N on soil mineralization suggested that there may be a particular N addition threshold level for changed C and N mineralization. It is predicted that an increase in labile C supply due to elevated carbon dioxide (CO2) and its interactions with wetland types will increase CO2 efflux more than N deposition in wetland soils.

scholarly journals Impact of Poultry Litter Cake, Cleanout, and Bedding following Chemical Amendments on Soil C and N Mineralization

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Dexter B. Watts ◽  
Katy E. Smith ◽  
H. A. Torbert
Keyword(s):  
N Mineralization ◽  
Crop Production ◽  
Sandy Loam ◽  
Poultry Litter ◽  
N Availability ◽  
C Mineralization ◽  
Organic C ◽  
Soil C ◽  
C And N Mineralization ◽  
C And N

Poultry litter is a great alternative N source for crop production. However, recent poultry litter management changes, and increased chemical amendment use may impact its N availability. Thus, research was initiated to evaluate the effect that broiler cake and total cleanout litter amended with chemical additives have on C and N mineralization. A 35-day incubation study was carried out on a Hartsells fine sandy loam (fine-loamy, siliceous, subactive, thermic Typic Hapludults) soil common to the USA Appalachian Plateau region. Three poultry litter components (broiler cake, total cleanout, and bedding material) from a broiler house were evaluated and compared to a soil control. Chemical amendments lime (CaCO3), gypsum (CaSO4), aluminum sulfate (AlSO4), and ferrous sulfate (FeSO4) were added to the poultry litter components to determine their impact on C and N mineralization. Litter component additions increased soil C mineralization in the order of broiler cake > total cleanout > bedding > soil control. Although a greater concentration of organic C was observed in the bedding, broiler cake mineralized the most C, which can be attributed to differences in the C : N ratio between treatments. Chemical amendment in addition to the manured soil also impacted C mineralization, with AlSO4generally decreasing mineralization. Nitrogen mineralization was also significantly affected by poultry litter component applications. Broiler cake addition increased N availability followed by total cleanout compared to soil control, while the bedding resulted in net N immobilization. Chemical amendments impacted N mineralization primarily in the broiler cake amended soil where all chemical amendments decreased mineralization compared to the no chemical amendment treatment. This short-term study (35-day incubation) indicates that N availability to crops may be different depending on the poultry litter component used for fertilization and chemical amendment use which could decrease N mineralization.

scholarly journals Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast China

2011 ◽  
Vol 57 (No. 8) ◽  
pp. 340-348 ◽  
Author(s):  
G. Qi ◽  
Q. Wang ◽  
W. Zhou ◽  
H. Ding ◽  
X. Wang ◽  
...  
Keyword(s):  
N Mineralization ◽  
Northeast China ◽  
Vegetation Type ◽  
Changbai Mountain ◽  
Annual Precipitation ◽  
Soil C ◽  
Natural Reserve ◽  
C And N Mineralization ◽  
Soil C And N ◽  
C And N

Changbai Mountain Natural Reserve (1,985 km<sup>2</sup> and 2,734 m a.s.l.) of Northeast China is a typical ecosystem representing the temperate biosphere. The vegetation is vertically divided into 4 dominant zones: broadleaved Korean pine forest (annual temperature 2.32&deg;C, annual precipitation 703.62 mm), dark coniferous forest (annual temperature &ndash;1.78&deg;C, annual precipitation 933.67 mm), Erman's birch forest (annual temperature &ndash;2.80&deg;C, annual precipitation 1,002.09 mm) and Alpine tundra (annual temperature &ndash;3.82&deg;C, annual precipitation 1,075.53 mm). Studies of soil carbon (C) and nitrogen (N) mineralization have attracted wide attention in the context of global climate change. Based on the data of a 42-day laboratory incubation experiment, this paper investigated the relationship between soil moisture and mineralization of C and N in soils with different vegetation types on the northern slope of the Natural Reserve Zone of Changbai Mountain. The elevation influence on soil C and N mineralization was also discussed. The results indicated that for the given vegetation type of Changbai Mountain the C and N mineralization rate, potential mineralizable C (C0) and potential rate of initial C mineralization (C<sub>0</sub>k) all increased as the soil moisture rose. The elevation or vegetation type partially affected the soil C and N mineralization but without a clear pattern. The moisture-elevation interaction significantly affected soil C and NO<sub>3</sub><sup>&ndash;</sup>-N mineralization, but the effect on NH<sub>4</sub><sup>+</sup>-N mineralization was not significant. The complex mechanism of their impact on the soil C and N mineralization of Changbai Mountain remains to be studied further based on data of field measurements in the future. &nbsp;

scholarly journals Interactive effects of belowground organic matter input, increased precipitation and clipping on soil carbon and nitrogen mineralization in a temperate steppe

2013 ◽  
Vol 10 (6) ◽  
pp. 9493-9521
Author(s):  
L. N. Ma ◽  
C. Y. Guo ◽  
X. P. Xin ◽  
S. Yuan ◽  
R. Z. Wang
Keyword(s):  
Organic Matter ◽  
N Mineralization ◽  
Interactive Effects ◽  
Mineralization Rate ◽  
Temperate Steppe ◽  
Soil Microbial Community Structure ◽  
Soil C ◽  
C And N Mineralization ◽  
Soil C And N ◽  
C And N

Abstract. Soil organic matter (SOM) inputs, increased precipitation and clipping (reducing belowground photosynthates allocation) are predicted to affect soil C and N cycling in temperate grassland ecosystems. However, the interactive effects between SOM inputs (or increased precipitation) and clipping on soil C and N mineralization in temperate steppes are still poorly understood. A field manipulation experiment was conducted to quantify the effects of SOM inputs, increased precipitation, clipping and their interactions on soil C and N mineralization in a temperate steppe of northeastern China from 2010 to 2011. The results showed that SOM inputs significantly increased soil C mineralization rate (CMR) and net N mineralization rate (NMR). Increased precipitation-induced enhancement of soil CMR essentially ceased after the first year, stimulation of soil NMR and NNR continued into the second year. However, clipping only marginally decreased soil CMR and NMR during the two years. There were significant synergistic interactions between SOM inputs (or increased precipitation) and clipping on soil CMR and NMR, as SOM inputs (or increased precipitation) showed greater effects on soil CMR and NMR under clipped plots than under unclipped plots, which could be explained by the relative shifts in soil microbial community structure because of bacterial biomass increases, and by the relative decreases in arbuscular mycorrhizal fungi biomass due to the reduction of belowground photosynthates allocation. These results highlight the importance of plants in mediating the responses of soil C and N mineralization to potentially increased SOM and precipitation by controlling belowground photosynthates allocation in the temperate steppe. Thus, the findings have important implications for improving prediction of C and N sequestration potential and its feedbacks to climate change in temperate steppe ecosystems.

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