scholarly journals Aggregate Associated Carbon, Aggregation and Storage of Soil Organic Carbon Respond to Organic and Synthetic Fertilizers in Cereal Systems: A Review

Author(s):  
M. Sharath Chandra ◽  
R. K. Naresh ◽  
B. Chandra Sheker ◽  
N. C. Mahajan ◽  
J. Vijay

Soil organic carbon (SOC) and its labile fractions are strong determinants of soil chemical, physical, and biological properties and the recycling of crop residues is an important factor affecting soil organic matter levels and soil quality. This collected review literature specifically aims on soil fertility related to aggregate associated carbon, aggregate-size distribution, aggregation and storage of soil organic carbon trends and their respond towards organic and synthetic fertilizers and also understanding of the effects of diverse soil management regimes on SOC sequestration in cereal systems. Several studies results showed that, with the exception of unfertilized control (CK) and nitrogen fertilizer (N) treatment, the concentration of SOCs in the soil layer 0-20 cm increased. The SOC concentration and storage to depths of 60 cm is significantly affected by long-term fertilization. SOC concentrations and stocks below 60 cm for all treatments were statistically insignificant. The degree of SOC was higher in farmyard manure plus N and P fertilizers (NP+FYM) at different depths, compared with CK, at 0-60 cm soil profile and followed by straw plus N and P fertilizers (NP+S) respectively. SOC storage in NP+FYM, NP+S, FYM and nitrogen and phosphorus (NP) fertilizers treatments increased by 41.3%, 32.9%, 28.1% and 17.9% respectively compared to CK treatment in 0–60 cm. Organic manure plus inorganic fertilizer application also increased organic carbon pools of the labile soil at depths of 0–60 cm. Particulate organic carbon (POC), dissolved organic carbon (DOC) and microbial biomass carbon (MBC) average concentration in organic manure plus inorganic fertilizer treatments (NP+S and NP+FYM) increased by 64.9–91.9 percent, 42.5–56.9 percent and 74.7–99.4 percent over CK treatment. The average control treatment SOC concentration was 0.54 percent, which increased to 0.65 percent in RDF treatment and 0.82 percent in RDF+FYM treatment and increased enzyme activity, potentially affecting soil nutrient dynamics in field conditions. The RDF+FYM treatment sequestered 0.28 Mg C ha-1 yr-1 compared with the control treatment while the NPK treatment sequestered 0.13 Mg C ha-1 yr-1 respectively. It can be concluded that long-term additions of organic manure have the most beneficial effects on the production of carbon pools, improve the availability of SOCs and also enhance C sequestration in soils.

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1036
Author(s):  
Sauro Simoni ◽  
Giovanni Caruso ◽  
Nadia Vignozzi ◽  
Riccardo Gucci ◽  
Giuseppe Valboa ◽  
...  

Edaphic arthropod communities provide valuable information about the prevailing status of soil quality to improve the functionality and long-term sustainability of soil management. The study aimed at evaluating the effect of plant and grass cover on the functional biodiversity and soil characteristics in a mature olive orchard (Olea europaea L.) managed for ten years by two conservation soil managements: natural grass cover (NC) and conservation tillage (CT). The trees under CT grew and yielded more than those under NC during the period of increasing yields (years 4–7) but not when they reached full production. Soil management did not affect the tree root density. Collecting samples underneath the canopy (UC) and in the inter-row space (IR), the edaphic environment was characterized by soil structure, hydrological properties, the concentration and storage of soil organic carbon pools and the distribution of microarthropod communities. The soil organic carbon pools (total and humified) were negatively affected by minimum tillage in IR, but not UC, without a loss in fruit and oil yield. The assemblages of microarthropods benefited, firstly, from the grass cover, secondly, from the canopy effect, and thirdly, from a soil structure ensuring a high air capacity and water storage. Feeding functional groups—hemiedaphic macrosaprophages, polyphages and predators—resulted in selecting the ecotonal microenvironment between the surface and edaphic habitat.


2017 ◽  
Vol 63 (12) ◽  
pp. 1661-1675 ◽  
Author(s):  
P. C. Moharana ◽  
R. K. Naitam ◽  
T. P. Verma ◽  
R. L. Meena ◽  
Sunil Kumar ◽  
...  

2014 ◽  
Vol 1073-1076 ◽  
pp. 1743-1750
Author(s):  
Wei Guo ◽  
Zhong Qing Zhang ◽  
Jin Hua Liu ◽  
Ping Zhu ◽  
Jing Min Yang

Long-term experiment of Gongzhuling base for the study through three treatments(1)NPK: NPK fertilizer; (2)N165M: Manure and NPK fertilizer; (3)1.5M+NPK: 1.5Manure and NPK fertilizer, used DSSAT-Century soil model to study the long-term effects of different fertilizer treatments on soil organic carbon, total nitrogen content and the laws of growth and decline. The results show that: long-term application of nitrogen fertilizer can significantly improve crop yields compare with NPK.. Corn production is also affected by climatic conditions, especially in drought years with less precipitation. Larger impact of organic manure on soil organic carbon (SOC)and total nitrogen, SOC content obtained in descending order of 1.5M + N165> N165> N0 by Century model simulation. Soil organic carbon content and nitrogen content has a certain relevance, and the trend is consistent. Organic manure and inorganic fertilizer can significantly reduce soil inorganic nitrogen content and reduce the risk of nitrogen leaching. Through model simulations C / N ratio could be explained: C / N increases indicated an increase of organic carbon faster than organic nitrogen in soil, and changes of soil chronic library SOM2 determined organic carbon content. Therefore we should pay attention to organic manure carbon return level, vigorously promote the use of farmyard manure to improve soil nutrient content.


2020 ◽  
Vol 66 (14) ◽  
pp. 2055-2066 ◽  
Author(s):  
Srdjan Šeremešić ◽  
Vladimir Ćirić ◽  
Ivica Djalović ◽  
Jovica Vasin ◽  
Tijana Zeremski ◽  
...  

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