Short-term effects of polyacrylamide and dicyandiamide on C and N mineralization in a sandy loam soil

2016 ◽  
Vol 32 (1) ◽  
pp. 127-136 ◽  
Author(s):  
C. Watson ◽  
Y. Singh ◽  
T. Iqbal ◽  
C. Knoblauch ◽  
P. Simon ◽  
...  
Keyword(s):  
N Mineralization ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Short Term ◽  
C And N Mineralization ◽  
Loam Soil ◽  
C And N ◽  
Short Term Effects

scholarly journals Mineralization of pig slurry compost treated with retorted oil shale and dicyandiamide in two contrasting soils

2021 ◽  
Vol 56 ◽  
Author(s):  
Luanna Corrêa Monteiro ◽  
Celso Aita ◽  
Janquieli Schirmann ◽  
Stefen Barbosa Pujo ◽  
Diego Antônio Giacomini ◽  
...  
Keyword(s):  
Oil Shale ◽  
Clay Soil ◽  
Sandy Loam ◽  
Sandy Loam Soil ◽  
N Immobilization ◽  
Pig Slurry ◽  
Mineral N ◽  
Total N ◽  
Loam Soil ◽  
C And N

Abstract: The objective of this work was to evaluate carbon and nitrogen mineralization in the soil after the application of composts produced in an automated composting plant, using pig slurry (PS) with and without the addition of retorted oil shale (ROS) and dicyandiamide (DCD) during composting. Laboratory studies were carried out for 180 days on two soils with contrasting characteristics: sandy-loam Typic Paludalf and clay Rhodic Hapludox, which were managed for more than 10 years under a no-tillage system. The composts were thoroughly mixed with the soils. The mineralization of the C and N from the compost was evaluated by measuring continuously CO2 emissions and periodically mineral N (NH4+ + NO3-) content in the soils, respectively. The mineralization of the C from the compost without ROS and DCD was higher in the sandy-loam soil (20.5%) than in the clay soil (13.9%). Similarly, 19.4% of the total N from the compost was mineralized in the sandy-loam soil and 10.9% in the clay soil. The presence of ROS in the compost reduced C mineralization by 54%, compared with the treatment without additives, in the sandy-loam soil and caused net N immobilization in both soils during incubation. The addition of DCD during PS composting did not affect the mineralization of the C and N from the compost in both soils. The addition of ROS during the composting of PS favors the retention of the C from the compost in the soil, especially in the sandy-loam one, but results in a net N immobilization.

Amelioration in nutrient mineralization and microbial activities of sandy loam soil by short term field aged biochar

2019 ◽  
Vol 138 ◽  
pp. 144-155 ◽  
Author(s):  
Vineet Yadav ◽  
Shilpi Jain ◽  
Pooja Mishra ◽  
Puja Khare ◽  
Ashutosh K. Shukla ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Microbial Activities ◽  
Short Term ◽  
Nutrient Mineralization ◽  
Loam Soil ◽  
Term Field

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 Nitrogen Amendment Stimulated Decomposition of Maize Straw-Derived Biochar in a Sandy Loam Soil: A Short-Term Study

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0133131 ◽  
Author(s):  
Weiwei Lu ◽  
Weixin Ding ◽  
Junhua Zhang ◽  
Huanjun Zhang ◽  
Jiafa Luo ◽  
...  
Keyword(s):  
Sandy Loam ◽  
Sandy Loam Soil ◽  
Short Term ◽  
Term Study ◽  
Short Term Study ◽  
Nitrogen Amendment ◽  
Maize Straw ◽  
Loam Soil

scholarly journals Composition and Decomposition of Peanut Residues in Georgia

2004 ◽  
Vol 31 (1) ◽  
pp. 6-11 ◽  
Author(s):  
K. S. Balkcom ◽  
C. W. Wood ◽  
J. F. Adams ◽  
B. H. Wood
Keyword(s):  
N Mineralization ◽  
Sandy Loam ◽  
Soil Types ◽  
Net N Mineralization ◽  
Limited Information ◽  
Arachis Hypogaea L ◽  
C And N Mineralization ◽  
Subsequent Crop ◽  
C And N ◽  
Harvest Residue

Abstract Legumes typically mineralize rapidly and can contribute to nitrogen (N) requirements of succeeding crops, but limited information exists on the mineralizable N content of peanut (Arachis hypogaea L.) residue. The objective of this study was to determine net N mineralization from two types of peanut residue for two soil types. Aboveground peanut residue (cv. Georgia Green) was collected 1 d prior to digging (PRE) and immediately after peanut threshing (POST). Leaf and stem residues were mixed and analyzed for carbon (C), N, lignin, and cellulose. Peanut residue equivalent to 4.5 Mg/ha was applied to a Greenville fine sandy loam (fine, kaolinitic, thermic Rhodic Kandiudults) and a Tifton loamy sand (fine-loamy, kaolinitic, thermic Plinthic Kandiudult) and aerobically incubated for 98 d in the dark at 25 C to determine C and N mineralization. Each soil was incubated simultaneously, with and without residue. PRE harvest residue had lower C, lignin, and cellulose concen-trations, but higher N concentrations than POST harvest residue. Differences in residue quality corresponded to differences in cumulative C mineralized and C turnover for the Tifton soil, but did not result in differences for cumulative N mineralized or relative N mineralized within either soil type. These data indicate that peanut residue will not supply significant amounts of N to a subsequent crop for these two soil types.

Short-term biochar application induced variations in C and N mineralization in a compost-amended tropical soil

2017 ◽  
Vol 25 (26) ◽  
pp. 25715-25725 ◽  
Author(s):  
Shih-Hao Jien ◽  
Wen-Chi Chen ◽  
Yong Sik Ok ◽  
Yasser Mahmoud Awad ◽  
Chien-Sen Liao
Keyword(s):  
N Mineralization ◽  
Tropical Soil ◽  
Short Term ◽  
C And N Mineralization ◽  
C And N
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