scholarly journals Short-Term Increase of Nitrogen Leaching in a Tea Field after Heavy Application of Organic Fertilizer

2008 ◽  
Vol 2008 (106) ◽  
pp. 63-70
Author(s):  
Nobuyuki Miura ◽  
Koji Uchimura ◽  
Takahisa Nakamura ◽  
Mitsuaki Karasuyama ◽  
Noriharu Ae
Water ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1617 ◽  
Author(s):  
Alexandra Tiefenbacher ◽  
Gabriele Weigelhofer ◽  
Andreas Klik ◽  
Matthias Pucher ◽  
Jakob Santner ◽  
...  

Besides the importance of dissolved organic matter (DOM) in soil biogeochemical processes, there is still a debate on how agricultural intensification affects the leaching of terrestrial DOM into adjacent aquatic ecosystems. In order to close this linkage, we conducted a short-term (45 day) lysimeter experiment with silt loam and sandy loam undisturbed/intact soil cores. Mineral (calcium ammonium nitrate) or organic (pig slurry) fertilizer was applied on the soil surface with a concentration equivalent to 130 kg N ha−1. On average, amounts of leached DOC over 45 days ranged between 20.4 mg (silt loam, mineral fertilizer) and 34.4 mg (sandy loam, organic fertilizer). Both, mineral and organic fertilization of a silt loam reduced concentration of dissolved organic carbon (DOC) in the leachate and shifted its composition towards a microbial-like signature (BIX) with a higher aromaticity (Fi) and a lower molecular size (E2:E3). However, in sandy loam only mineral fertilization affected organic matter leaching. There, lowered DOC concentrations with a smaller molecular size (E2:E3) could be detected. The overall effect of fertilization on DOC leaching and DOM composition was interrelated with soil texture and limited to first 12 days. Our results highlight the need for management measures, which prevent or reduce fast flow paths leading soil water directly into aquatic systems, such as surface flow, fast subsurface flow, or drainage water.


2013 ◽  
Vol 114 ◽  
pp. 168-177 ◽  
Author(s):  
Thiago Assis Rodrigues Nogueira ◽  
Ademir Franco ◽  
Zhenli He ◽  
Vivian Santoro Braga ◽  
Lucia Pittol Firme ◽  
...  

2002 ◽  
Vol 14 (3) ◽  
pp. 110-114
Author(s):  
Yasutaka SUEHIRO ◽  
Kunimasa KOGA ◽  
Kei KAMINO

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 601
Author(s):  
Paweł Stanisław Wierzchowski ◽  
Jakub Dobrzyński ◽  
Kamila Mazur ◽  
Marek Kierończyk ◽  
Witold Jan Wardal ◽  
...  

Acidified slurry is a novel organic fertilizer that limits gaseous ammonia emissions and reduces nitrogen losses. Our research aimed to determine the effects of short-term fertilization with acidified slurry on the chemical properties and bacterial community of soil used for maize cultivation. In the months after spreading, raw slurry fertilization had a significant impact on the increase in values of N-NO3. In contrast, soil fertilized with acidified slurry had lower N-NO3 values when compared to raw slurry fertilization treatments. Bacterial sequencing using Illumina MiSeq showed no differences in the genetic diversity of bacterial communities. In all tested soil samples, dominants at the phylum level were Actinobacteria, Proteobacteria, and Acidobacteria, while dominants at the class level were Actinobacteria, Alphaproteobacteria, Thermoleophilia, Gammaproteobacteria, and Acidimicrobiia. The values of biodiversity indices (Shannon index, Simpson index) in tested samples were similar. Our results suggest that short-term fertilization with acidified slurry does not adversely affect the biodiversity and structure of the bacterial communities and has a slight impact on soil chemical properties.


2019 ◽  
Vol 2019 (127) ◽  
pp. 27-36
Author(s):  
Keitaro Sonoda ◽  
Yoshihiko Wada ◽  
Yoshihiro Imamura ◽  
Seigen Yamanaka

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 209
Author(s):  
Andreia F. Santos ◽  
Ana M. Veríssimo ◽  
Pedro Brites ◽  
Filipe M. Baptista ◽  
José C. Góis ◽  
...  

Sustainable agriculture practices within the guidelines of nutrient recycling and the circular economy must be increasingly promoted. This work aims to evaluate the performance of dried sewage sludge (DSS), green liquor dregs mixed with sewage sludge (DSSA), raw sewage sludge, and commercial organic fertilizer control, using a short-term agronomic assessment with lettuce crop (Lactuca sativa) in greenhouse conditions. Different application rates based on the nitrogen content were tested for each soil amendment: 0, 85, 170, and 225 kg N/ha (treatments T0, T1, T2, and T3, respectively). DSS and DSSA resulted in fresh lettuce productivities 1.3 and 3.2 times higher in T3 than in T0, respectively. The ideal N content in lettuce leaves was reached for all materials and treatments, with the highest values obtained for DSS (2.88–3.33% from T1 to T3). Lettuce produced in soils amended with DSS and DSSA showed also ideal levels of Ca. Overall, the performance of sludge-based products was similar to commercial fertilizer, without impairing the nutritional balance of the crop and the soil.


2011 ◽  
Vol 64 (4) ◽  
pp. 871-879 ◽  
Author(s):  
Gonçalo Sousa ◽  
David Fangueiro ◽  
Elizabeth Duarte ◽  
Ernesto Vasconcelos

The objective of the present work was to assess the short term potential of treated wastewater and sewage sludge for ornamental lawn fertilization and irrigation. A field experiment was performed and the following treatments were considered: sewage sludge application + irrigation with public water; sewage sludge application + irrigation with treated wastewater; irrigation with public water; irrigation with treated wastewater (TW). Irrigation with treated wastewater showed a positive effect on lawn installation through higher growth of grass (1,667 cm) and higher dry matter yield (18,147 g m−2). These results represent a significant increase in the grass yield compared with public water irrigation. The grass height (2,606 cm) and dry matter yield (23,177 g m−2) increased even more, when sewage sludge produced in the wastewater treatment plant (WWTP) was applied to soil, which proves once more its benefits as an organic fertilizer. At the end of the experiment, an increase of some soil parameters (pH, electrical conductivity, organic matter, Ca2+, Na+, K+, Mg2+ and NH4+) was observed, indicating that treated wastewater irrigation can cause a soil sodization. This short term study indicated that use of treated wastewater and sewage sludge for ornamental lawn fertilization and irrigation is an environmentally sustainable option for re-use of the WWTP by-products.


2008 ◽  
Vol 16 (1) ◽  
pp. 12-19 ◽  
Author(s):  
J.J. Miller ◽  
B.W. Beasley ◽  
D.S. Chanasyk ◽  
F.J. Larney ◽  
B.M. Olson

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