Soil carbon fractions

Conventional tillage and cereal-cereal cropping systems cause degradation of soil health and quality by depleting soil organic carbon as well as other nutrients. Therefore we studied the “Effect of long term zero tillage and different moisture regimes on soil organic carbon and its fractions in legume based cropping systems of northwestern Indo-Gangetic Plains”.

20p trinhthamhodang11 27-04-2021 15 1   Download

A study was conducted in an ongoing field experiment started during Rabi 1988-89 in calcareous soil at Research Farm of Dr. Rajendra Prasad Central Agricultural University, Pusa, Bihar. The experimental design was split-plot with four fertilizer levels (0, 50, 100 & 150% NPK) in main plots and four levels of manures (no manures, compost @10 t ha-1 , crop residues and compost @10 t ha-1 plus crop residues) in sub-plots.

7p caygaocaolon11 21-04-2021 14 1   Download

Assessment of carbon fraction was undertaken in Nandipura mini-watershed area under different land-use systems. Eight land-use systems were selected viz; agricultural system (maize, ragi and groundnut), horticulture system (arecanut, coconut and pomegranate), fallow land and scrubby land for the study of dynamics of carbon.

7p chauchaungayxua10 19-03-2021 16 1   Download

The field experiment was conducted the year 2014-2015 on the old long-term fertilizer experiment started since 1983 to assess characterization of humus in soil and it’s relation with physical and physic-chemical properties of soil under the long – term effect of integrated nutrient management in sorghum wheat cropping system. The study showed that there was fraction of humus tended to decrease with depth and use of organics like subabul and FYM in conjunction with NPK fertilizers exerted a remarkable impact on the distribution and built up of humus fractions in soil.

8p chauchaungayxua10 18-03-2021 16 2   Download

Soil aggregates and organic matter are considered to be important indicators of soil quality. The objective of this review study was to determine agricultural practices effects on the distribution of soil organic carbon (SOC) associated with aggregate-size fractions. Depth distribution of soil organic carbon (SOC) fractions depends on the efficiency of agro‐ technical managements.

21p trinhthamhodang9 16-12-2020 7 2   Download

A field study entitled “Effect of long term application of fertilizer and manure on Establish Relationship Between soil Organic Carbon Fractions with yield of maize and wheat crops under maize-wheat sequence in Heplustepts” was conducted during Kharif 2013-14 and 2014-15 in the Long Term Fertilizer Experiments initiated in Kharif, 1997 at the Instructional Farm of the Rajasthan College of Agriculture, Udaipur.

7p angicungduoc8 07-11-2020 15 2   Download

An experiment was carried out under long term trial in randomized block design (RBD) at Indira Gandhi Krishi Vishwavidyalaya, Raipur, India to comprehend the long-term effect of fertilization and algalization on soil aggregation; C and N fractions associated with such aggregates under rice based cropping sequence.

7p angicungduoc8 07-11-2020 14 1   Download

Studying the dynamics of soil organic carbon (SOC) is important for understanding the carbon stabilization into different pools. Thus, a 25-year old experiment was used to assess the impact of double rice cropping system with addition of organics and grades of fertilization on labile carbon pools and crop yield sustainability in an Inceptisol in southern India. The total water stable aggregates (WSA) in the experimental soils ranged from 70.4 to 94.9% under different treatments.

11p angicungduoc8 07-11-2020 14 1   Download

The distribution of SOC with in different pools is an important consideration for understanding its dynamics and diverse role in ecosystems. Therefore, present study was carried out to study the effect of different options of nutrient management on active pools of SOC under soybean - chickpea cropping sequence of Typic Haplustepts.

8p trinhthamhodang1215 23-09-2020 11 1   Download

The review study assessed that the adoption of CA in rice-wheat system for a few uninterrupted years can substantially improves the organic carbon carbon status, and reduce the sub-surface compaction and the modified soil environment may promote rice-wheat system productivity in directseeded/ unpuddled transplanted rice and notill wheat system, in comparison to a conventional system, where rice was puddletransplanted followed by conventionally tilled wheat.

18p caygaocaolon7 18-09-2020 10 2   Download

A study on forms and distribution of carbon in the soils of Dambal sub-watershed of Mundargi taluk of Gadag district, Karnataka was undertaken during 2018-19. One representative soil profile for each soil series was selected to represent twenty two soil series identified under Sujala-III project. Depth wise soil samples were collected and analysed for forms of carbon. Soils were generally sandy clay loam to clay in texture, bulk density and particle density increased with depth and on contrary porosity was decreased with depth.

16p caygaocaolon7 18-09-2020 18 0   Download

The main objective of the present review study was to assess the impact of long-term manure and synthetic fertilization and residue retention on SOC storage, soil aggregation and responses of SOC fractions in the Typic Ustochept soil of Northwest India.

16p nguaconbaynhay7 15-08-2020 14 1   Download

International efforts to mitigate human-caused changes in the Earth‟s climate are considering a system of incentives that would encourage specific changes in land use that can help to reduce the atmospheric concentration of carbon dioxide. The two primary landbased activities that would help to minimize atmospheric carbon dioxide are carbon storage in the terrestrial biosphere and the efficient substitution of biomass fuels and biobased products for fossil fuels and energy-intensive products.

11p kethamoi6 29-06-2020 16 2   Download

The average concentration of particulate organic carbon (POC), dissolved organic carbon (DOC) and microbial biomass carbon (MBC) in organic manure plus inorganic fertilizer treatments (NP+S and NP+FYM) in 0–60 cm depth were increased by 64.9–91.9%, 42.5–56.9%, and 74.7–99.4%, respectively, over the CK treatment. Accumulation of crop residues and organic matter in the surface layer under conservation tillage creates favourable feeding conditions and also provides physical protection to various soil organisms, thereby increasing their abundance as well as diversity.

27p gaocaolon5 14-06-2020 21 3   Download

Soil organic carbon (SOC) and its fractions (labile and non-labile) including particulate organic carbon (POC) and its components [coarse POC and fine POC], light fraction organic carbon (LFOC), readily oxidizable organic carbon, dissolved organic carbon (DOC) are important for sustainability of any agricultural production system as they govern most of the soil properties, and hence soil quality and health.

28p gaocaolon5 14-06-2020 20 2   Download

An investigation was undertaken at, Department of Soil Science and Agricultural Chemistry, College of Agriculture, UAHS, Shivamogga to a study of selected carbon fractions in soil under Areca nut based cropping systems of coastal zone (10) of Karnataka. Among the cropping systems studied, arecanut + mixed recorded higher mean potassium permanganate oxidizable organic carbon(1387.33mg kg-1 ), cold water extractable carbon (391.63mg kg-1 ), total carbon (23.52 g kg-1 ), total organic carbon (18.70g kg-1 ), total inorganic carbon (0.0.1618g kg-1 ) and soil microbial biomass carbon (373.

9p trinhthamhodang1213 02-06-2020 13 0   Download

Soil organic carbon (SOC) is an essential component of soil organic matter and being dynamic in nature controls the nutrients release as well as their availability. Different fractions of organic carbon plays different role in governing the nutrient availability. The various fractions of SOC includes- microbial biomass carbon (MBC), dissolved organic carbon (DOC), light and heavy fraction carbon pool.

14p cothumenhmong5 17-05-2020 10 0   Download

Three hundred soil samples from ten blocks of Jajpur district, Odisha state were studied for distribution of DTPA extractable. Zn, Cu, Fe and Mn and Boron their relationship with some soil properties. Soil pH, calcium carbonate, organic carbon and particle-size fractions had strong influence on the distribution of these micronutrients. The content of micronutrient increased with the increase in organic carbon and decreased with increase in pH. As per critical limit prescribed for Zn 26 per cent and Boran 73.3 percent of the soil could be rated as deficient in available zinc and boron.

5p chauchaungayxua5 08-05-2020 10 1   Download

Six typical pedons from mulugu division of warangal district were studied for physical, physico-chemical and chemical properties of the area. The soils were moderately deep to very deep, very dark brown to strong brown in colour, gravelley sand to clay in texture and had varied structure including single grain, granular, sub-angular blocky and angular blocky. The clay content in soils varied from 1.4 to 67 per cent. The clay content increased with depth in all pedons. Silt fraction in the soils 6.7 to 32.6 per cent. The sand content in the soils under investigation varied from 8.2 to 80.

14p chauchaungayxua5 08-05-2020 11 1   Download

A soil survey was conducted in three talluks (Davangere, Channagiri and Honnali) of more than ten year old arecanut plantations of Karnataka to assess status of available boron, its different fractions and its relationship with other properties of soil.

7p trinhthamhodang1212 06-04-2020 13 1   Download