Compost amendment maintains soil structure and carbon storage by increasing available carbon and microbial biomass in agricultural soil – A six-year field study

Wang, Daoyuan; Lin, Jia; Sayre, Jordan M.; Schmidt, Radomir; Fonte, Steven J.; Rodrigues, Jorge L. Mazza; Scow, Kate M.

doi:10.1016/j.geoderma.2022.116117

Cited by 35 publications

(22 citation statements)

References 71 publications

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“…On the other hand, the carbon flux ratio of aeolian sediment increased in the two seasons, and the difference between the two seasons was obvious. Combined with the results on TC content change, the reason may be that TC content decreased with higher grazing intensity, but the loss of available C and N amounts increased greatly (Aubault et al, 2015; Wang et al, 2022), and the proportion of carbon flux to aeolian sediment flux increased directly. Other studies (Aubault et al, 2015; Baddock et al, 2011) have found that wind erosion of 1% of 0.05 mm soil particles in the topsoil can reduce soil available C and N by 0.259 and 0.016 g·kg −1 , respectively.…”

Section: Discussionmentioning

confidence: 97%

Grazing effects on total carbon and nitrogen content of wind‐eroded soils in desert steppe

Zhang

et al. 2023

Land Degrad Dev

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A high stocking rate can intensify wind erosion in grasslands, and strong wind can carry away soil surface particles, soil carbon (C), and nitrogen (N), which leads to soil barrenness. In this research, the dust flux, total carbon (TC) and total nitrogen (TN) contents, and fluxes of aeolian sediment were determined in the nongrowing season (mid‐October to mid‐April of the following year) and growing season (mid‐April to mid‐October) from 2017 to 2020 at a continuous grazing gradient experiment platform established in 2004 in a desert steppe in Inner Mongolia, China. The results were as follows: (1) As the stocking rate increased, fluxes of aeolian sediment at 10 cm (H10), 30 cm (H30), and 100 cm (H100) were greatly increased (p < 0.05). Aeolian sediment fluxes followed the order control (CK) < light stocking rate (LG) < moderate stocking rate (MG) < heavy stocking rate (HG). (2) The TC and TN contents of aeolian sediment decreased with an increase in stocking rate, and higher grazing intensity resulted in a difference in TC content, which decreased between the two seasons. The TC flux/aeolian sediment flux increased with an increase in stocking rate, and the ratio of TC flux increased between two seasons due to the influence of heavy grazing. Grazing disturbance had little effect on TN flux. As grazing intensity increased, wind erosion resulted in an increase in soil available carbon loss, and this loss was more severe in the nongrowing season. (3) The C/N ratio increased with increase in aeolian sediment flux. The aeolian sediment flux and C/N showed an inverse relationship with the increase in grazing intensity. Regression lines for the two seasons showed an intersecting trend, and the intersection points moved backward as height increased, indicating that higher stocking rates could reduce the influence of grassland vegetation on C/N. As height increased, the regression intercept increased, indicating that the loss of wind‐eroded soil changed from a low C/N loss to a high C/N loss. In general, high stocking rates aggravated soil wind erosion, resulting in more C pool loss than N loss in terms of soil elements and more available C loss in the nongrowing season. In the nongrowing season, vegetation characteristics are poor, coupled with grazing interference, and wind erosion in the nongrowing season is serious in general; however, the change law of C and N in wind‐eroded soil is directly related to its particle size. C and N content in fine particles is higher, and C content in soil is much higher than N, so the TC loss is relatively large; therefore, reducing the intensity of grazing can reduce the occurrence of soil wind erosion, and implementing measures to protect grassland in spring and other periods vulnerable to wind erosion would be conducive to the sustainable usage of grassland resources.

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Section: Discussionmentioning

confidence: 97%

Grazing effects on total carbon and nitrogen content of wind‐eroded soils in desert steppe

Zhang

et al. 2023

Land Degrad Dev

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“…Soil organic amendments can enhance soil C storage through multiple mechanisms; these include increasing soil microbial biomass and activity, enhancing soil water-stable aggregation, and introducing recalcitrant C [ 39 , 40 ]. The application of CO generates a positive impact on C and as suggested previously, the long-term CO application maybe promotes the use of a different source of C from the microorganism determining an enlarging soil microbial available C pool, higher soil microbial biomass, and increasing aggregate formation [ 41 ]. Moreover, the soil improvers with low C/N seem to contribute to enhancing SOM due to their slow decomposition [ 39 ].…”

Section: Discussionmentioning

confidence: 99%

Matured Manure and Compost from the Organic Fraction of Solid Waste Digestate Application in Intensive Apple Orchards

Bona¹,

Cristoforetti²,

Zanzotti³

et al. 2022

IJERPH

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In intensive fruit growing systems, the recovery and maintenance of soil fertility play a crucial role in both environmental protection and sustainable support to plant productivity. The circular economy approach adopted at the EU level strongly promotes the use of organic products instead of mineral fertilizers. This work focuses on two different soil improvers, compost from the organic fraction of municipal solid waste digestate (CO) and “matured” manure, produced after a fast and controlled aerobic treatment in an aerated pile (MM), which were applied in three apple orchards with different soil tillage. The soil improvers have been characterized for amendment and fertilizing properties. After the amendment, the soils were sampled twice a year (Spring and Autumn) for three years. Each sample has been characterized for texture, pH, cation exchange capacity, nutrients, soil organic matter, and micronutrients. The amendments obtained differed on C, N, P, and K contents, but had similar biological stability. The main effects on soils were the increasing of N and soil organic matter after compost application, while the use of matured manure mainly act on available P and exchangeable K. The treatments showed significant effects among fields with a linear increasing trend only for compost. Matured manure showed more effects in earlier times. The data collected aim to improve the knowledge about sustainable management of soil organic matter and organic nutrients in intensive fruit-growing agriculture by using local products.

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“…Furthermore, it was abundant in multivalent ions such as calcium and phosphorus, which could act as a bridge and enhance the adsorption potential of organic matter on minerals [32,33]. They aided the attachment, growth, and reproduction of microorganisms, fostered the establishment of rich microbial communities, promoted the formation of organic carbon, and expanded the effective carbon pool of microorganisms [6]. While C B and C A had high losses of organic carbon and nitrogen, up to 90%, during the treatment processing, which weakened their effective nutrient content [10].…”

Section: Comprehensive Evaluation Of Inorganic Fertilizer Level and C...mentioning

confidence: 99%

“…In addition, fungi may have a stronger advert resistance. The increase in the amount of fungi in C C was primarily because the compost products served as an excellent environment for fungal colonization, and the bonding of fungal hyphae to form large aggregates promoted soil aggregation, which further provided diversified habitats for fungi, resulting in increased fungal activity and diversity [6]. While the increase in bacterial amounts might be because the compost provided a large amount of unstable carbon sources for microorganisms to produce extracellular polymeric substances, which promoted bacterial proliferation [31].…”

Section: Effects Of Inorganic Fertilizer Level and Coffee Husk Return...mentioning

confidence: 99%

“…The inappropriate use of chemical fertilizers resulted in various problems, including low fertilizer use efficiency, decreased crop yield and quality, soil acidification, nutrient imbalance, and decreased organic matter content [4,5]. Moreover, it negatively impacted crop root growth and nutrient absorption, disrupted the balance of soil microbial communities, decreased enzyme activity, and hindered crop growth and development [6][7][8]. On the other hand, proper fertilization practices improved the physicochemical properties of soil in the crop root zone, increased the activities of rhizosphere microorganisms and enzymes, and promoted crop growth [9].…”

Section: Introductionmentioning

confidence: 99%

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Combined Application of Coffee Husk Compost and Inorganic Fertilizer to Improve the Soil Ecological Environment and Photosynthetic Characteristics of Arabica Coffee

et al. 2023

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Excessive use of chemical fertilizers deteriorates the soil environment and limits the normal growth of Arabica coffee trees. In order to identify the optimal coupling mode of chemical fertilizer application and biomass return that enhances the soil ecological environment and promotes the photosynthetic efficiency of Arabica coffee, this study investigated the impacts of three levels of inorganic fertilizers (FL: 360 kg·ha−1, FM: 720 kg·ha−1, and FH: 1080 kg·ha−1) and three types of coffee husk returning methods (CB: coffee husk biochar, CC: coffee husk compost, CA: coffee husk ash) on the soil fertility, microbial amount, enzyme activity, and photosynthetic characteristics of the Arabica coffee root zone. The entropy weight-TOPSIS method was employed to evaluate the comprehensive benefits. The results showed that FM had the biggest effect on improving soil fertility, microorganisms, and enzyme activities compared with FL and FH. Moreover, compared to CA, CC significantly increased soil organic carbon, organic matter, and total nitrogen content. CC significantly enhanced the activities of soil phosphatase and urease, respectively, by 29.84% and 96.00%, and significantly increased the amount of bacteria, fungi, and actinomycetes by 62.15%, 68.42%, and 46.21%, respectively. The net photosynthetic rate (Pn), transpiration rate (Tr), and stomatal conductance (Gs) of FMCC were significantly higher than those of other treatments. The comprehensive benefit evaluation of the soil environment and photosynthetic characteristics by the entropy weight-TOPSIS method ranked FMCC first. Therefore, FMCC was the optimal coupling mode for fertilizer application and the coffee husk returning method. The findings of this study not only provide scientific guidance for fertilizing Arabica coffee but also clarify the proper approach to returning coffee husk to the field, thereby improving soil ecology and promoting green and efficient production of specialty crops.

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Compost amendment maintains soil structure and carbon storage by increasing available carbon and microbial biomass in agricultural soil – A six-year field study

Cited by 35 publications

References 71 publications

Grazing effects on total carbon and nitrogen content of wind‐eroded soils in desert steppe

Grazing effects on total carbon and nitrogen content of wind‐eroded soils in desert steppe

Matured Manure and Compost from the Organic Fraction of Solid Waste Digestate Application in Intensive Apple Orchards

Combined Application of Coffee Husk Compost and Inorganic Fertilizer to Improve the Soil Ecological Environment and Photosynthetic Characteristics of Arabica Coffee

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