scholarly journals Carbon fractions and stock in response to solid and fluid organomineral fertilizers in highly fertile soils

2019 ◽  
Vol 54 ◽  
Author(s):  
Juliano Corulli Corrêa ◽  
Lauri Caetano Ródio ◽  
Amanda Zolet Rigo ◽  
Marco André Grohskopf ◽  
Agostinho Rebellatto ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Management Practice ◽  
Mineral Fertilizer ◽  
Mineral Fertilizers ◽  
High Fertility ◽  
Carbon Fractions ◽  
Carbon Management ◽  
Best Management ◽  
Carbon Management Index ◽  
Carbon Particulate

Abstract: The objective of this work was to evaluate the effect of the application of organomineral and mineral fertilizers to highly fertile soils on the carbon management index (CMI) and carbon fractions and stock. The experiment was carried out on an Oxisol and Inceptisol, under no-tillage, in three crop seasons. The treatments consisted of two organomineral fertilizers and of two mineral fertilizers in solid and fluid forms, besides a control without fertilization. The application of organomineral and mineral fertilizers, in solid and fluid forms, to the different soil classes with high fertility promoted changes in total organic carbon, particulate organic carbon, and carbon associated with minerals, as well as in carbon stocks and the CMI. In the treatments with fluid mineral fertilizer and solid organomineral fertilizer, such changes occurred only in the Inceptisol due to the lower degree of weathering of this soil. The higher values of the CMI, with the fluid mineral fertilizer in the Inceptisol, allow inferring on which would be the best management practice aiming at the increase and maintenance of carbon in the soil-plant system, based on the yield results of wheat, sorghum, and corn, which were similar to those obtained with the other fertilizers.

Effects of simulated acid rain on soil labile organic carbon and carbon management index in subtropical forests of China

2018 ◽  
Vol 38 (2) ◽  
Author(s):  
张慧玲 ZHANG Huiling ◽  
吴建平 WU Jianping ◽  
熊鑫 XIONG Xin ◽  
褚国伟 CHU Guowei ◽  
周国逸 ZHOU Guoyi ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Acid Rain ◽  
Simulated Acid Rain ◽  
Subtropical Forests ◽  
Carbon Management ◽  
Labile Organic Carbon ◽  
Soil Labile Organic Carbon ◽  
Carbon Management Index

Wheat straw and biochar effect on soil carbon fractions, enzyme activities, and nutrients in a tobacco field

2021 ◽  
pp. 1-12
Author(s):  
Yi Wang ◽  
Jianxin Dong ◽  
Xuebo Zheng ◽  
Jiguang Zhang ◽  
Peilu Zhou ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Wheat Straw ◽  
Enzyme Activities ◽  
Mineral Fertilizer ◽  
Soil Enzyme ◽  
Hot Water ◽  
Available Phosphorus ◽  
Carbon Fractions ◽  
Organic Carbon Fractions

Annual removal of tobacco residues and insufficient input of organic materials have exacerbated total organic carbon (TOC) depletion and soil degradation in a tobacco field in the Huanghuai area. Straw residue and biochar application may be effective ways to increase TOC accumulation and improve soil fertility. In this field experiment, wheat straw (WS) and wheat-straw-derived biochar (BC) with mineral fertilizer were compared with mineral fertilizer alone (CK), and we assessed their effects on soil organic carbon fractions, enzyme activities, and nutrients in Shandong Province, China, during 2016 and 2017. At 0–20 cm depth, the WS treatment had a greater overall effect on the measured soil properties. Compared with the control, the WS treatment significantly increased the concentrations of microbial biomass carbon (MBC), hot-water-extractable carbon (HWC), and permanganate-oxidizable carbon concentrations (POXC; by 252.41%, 107.02%, and 65.53%, respectively); the activities of sucrase, urease, and phosphatase (by 112.52%, 7.81%, and 34.33%, respectively); and the contents of alkaline hydrolysable nitrogen, available phosphorus, and available potassium (by 92.22%, 100.78%, and 10.57%, respectively). Compared with the control, the BC treatment significantly increased TOC content, MBC content, light fraction organic carbon (LFOC), and potassium (TK) concentration (by 74.93%, 86.24%, 153.73%, and 21.92%, respectively). Most soil enzyme activity and nutrient parameters were significantly correlated with MBC. Thus, straw application improved soil fertility by increasing the concentrations of high labile organic carbon fractions (HWC, MBC, and POXC), stimulating soil enzyme activities, and releasing more soil available nutrients, and BC addition contributed to the accumulation of TOC, MBC, LFOC, and TK.

scholarly journals Application of organic fertilizers alter the physical and biogeochemical properties of agricultural topsoil and subsoil

2021 ◽  
Author(s):  
Anke Neumeier ◽  
Julien Guigue ◽  
Yaser Ostovari ◽  
Andreas Muskolus ◽  
Henk Martens ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Organic Amendments ◽  
Mineral Fertilizer ◽  
Organic Fertilizers ◽  
Mineral Fertilizers ◽  
Carbon And Nitrogen ◽  
Biogas Digestate ◽  
Nitrogen Contents ◽  
Soc Stocks

<p>Sustainable agricultural practices aim to ensure the rebuilt of soil organic carbon (SOC) stocks and to sustain soil fertility. One of the levers is the use of carbon and nutrient inputs in the form of organic amendments, such as farmyard manure, slurry and biogas digestate. These organic fertilizers represent a promising alternative to the mineral fertilizers, which are mainly made from non-renewable resources. The use mineral fertilizers is indeed associated with an excessive use of natural resources and a loss of biodiversity. The effect of organic amendments compared with traditional mineral fertilizers on SOC stocks and soil fertility are uncertain in the longer-term. We aimed at investigating the effects of mineral and organic fertilizers (i.e., manure, pig slurry and biogas digestate) on topsoil and subsoil biogeochemistry, after eight years of application. For this purpose, we sampled soil cores down to a depth of one meter in a randomized field experiment in Germany, running since 2011. A full-profile assessment of the carbon and nitrogen distribution, stability and bioavailability was achieved using a combination of classical bulk physico-chemical analyses (e.g., SOC and nitrogen contents, texture, pH, bulk density) and state-of-the-art imaging techniques. Selected samples were analysed for aggregate size distribution, as well as organic carbon and nitrogen contents and allocation within these aggregates. Further, undisturbed core-samples were scanned using a hyperspectral camera in the Vis-NIR range to reveal hotspots of carbon storage at the soil profile scale. Soil carbon distribution was predicted as a function of spectral response, using a variety of machine learning approaches. The application of organic fertilizers (whatever their nature) resulted in higher SOC contents in the first 10 cm, as compared to the control and the mineral fertilizer treatments. The SOC stocks were + 21-33 % higher in the soil treated with organic fertilizers as compared to the control treatment. The application of mineral fertilizer or digestate, as compared to the control, resulted in higher relative amount of microaggregates (versus macroaggregates) (+ 19-40 %) in the soil down to 80 cm. These results will provide essential information to develop management strategies that increase nutrient recycling as well as SOC stocks.</p>

The changes of soil organic carbon and carbon management index in alpine steppe

2013 ◽  
Vol 33 (24) ◽  
Author(s):  
蔡晓布 CAI Xiaobu ◽  
于宝政 YU Baozheng ◽  
彭岳林 PENG Yuelin ◽  
刘合满 LIU Heman
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Management ◽  
Alpine Steppe ◽  
Carbon Management Index

scholarly journals Stratification of Carbon Fractions and Carbon Management Index in Deep Soil Affected by the Grain-to-Green Program in China

PLoS ONE ◽  
2014 ◽  
Vol 9 (6) ◽  
pp. e99657 ◽  
Author(s):  
Fazhu Zhao ◽  
Gaihe Yang ◽  
Xinhui Han ◽  
Yongzhong Feng ◽  
Guangxin Ren
Keyword(s):  
Deep Soil ◽  
Carbon Fractions ◽  
Carbon Management ◽  
Carbon Management Index

Effects of Conservation Tillage on Organic Carbon and Carbon Management Index in Paddy Soil

2011 ◽  
Vol 71-78 ◽  
pp. 2759-2762
Author(s):  
Juan Peng ◽  
En Ci ◽  
Zhuo Wang Fu ◽  
Ming Gao ◽  
De Ti Xie
Keyword(s):  
Organic Carbon ◽  
Soil Quality ◽  
Paddy Soil ◽  
Conservation Tillage ◽  
Conventional Tillage ◽  
Tillage Systems ◽  
Carbon Management ◽  
Labile Organic Carbon ◽  
Carbon Management Index

Effects of different tillage systems on organic carbon and carbon management index (CMI) in paddy soil of long-term experiment site (since 1990) were studied. The experiment included three tillage treatments: conventional tillage with rotation of rice and winter fallow (CT-r) system, no-tillage and ridge culture with rotation of rice and rape (RT-rr) system, and conventional tillage with rotation of rice and rape (CT-rr) system. Soil labile organic carbon measured by oxidation of KMnO4 respond rapidly to carbon supply changes, and it is considered as an important indicator of soil quality. Compared with CT-r system, long-term RT-rr system significantly increased total organic carbon and labile organic carbon in surface soil (0-10 cm and10-20 cm). The proportion of labile organic carbon to total organic carbon under RT-rr system was higher than other tillage systems. The carbon management index (CMI) is derived from the total soil organic carbon pool and carbon lability and is useful to evaluate the capacity of management systems to promote soil quality. The CMI increased in each layer under RT-rr system, while it decreased under CT-rr system. This indicated that conservation tillage improved the capacity of the management system into promoting soil quality in Sichuan Basin of China.

Sign in / Sign up

Export Citation Format

Share Document