Anaerobic degradation of municipal organic waste among others composting techniques improves N cycling through waste-soil-plant continuum

Shah, Ghulam Mustafa; Tufail, Nadia; Bakhat, Hafiz Faiq; Imran, Muhammad; Murtaza, Behzad; Farooq, Aamir; Saeed, Muhammad Farhan; Waqar, Atika; Rashid, Muhammad Imtiaz

doi:10.4067/s0718-95162017005000038

Cited by 9 publications

(7 citation statements)

References 31 publications

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“…Our results showed that the AC had the lowest nitrogen losses and that the differences between the AC and FC as well as MC were significant ( p < 0.05). However, Shah et al [26,71] concluded that AnC treatment resulted in the lowest amount of N losses in their study. The main cause of this difference was the different composting conditions.…”

Section: Discussionmentioning

confidence: 84%

Impact of Composting Methods on Nitrogen Retention and Losses during Dairy Manure Composting

Yang

Liu

Zhu

et al. 2019

IJERPH

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Currently, composting is one of the most effective methods for treating fecal waste on large-scale livestock and poultry farms, but the quality effects of different composting methods are different. In this study, we implemented four composting methods, including farmer compost (FC), anaerobic compost (AnC), mixed compost (MC), and aerobic compost (AC), to study the effects of different composting methods on nitrogen (N) losses while composting dairy manure. Our results showed that the germination indexes (GIs) of three of the composting treatments (AnC, MC, and AC) exceeded 80%, which met the maturity requirements for composted products. Ammonia (NH3) emissions were the main contributor to nitrogen losses, while accumulated nitrous oxide (N2O) emissions accounted for the lowest proportion of nitrogen losses. The cumulative N losses via the leachate of the AC treatment were the lowest and accounted for 0.38% of the initial total nitrogen (TN). The accumulated N losses of the AC, FC, AnC, and MC treatments accounted for 13.13% 15.98%, 15.08%, and 19.75%, respectively, of the initial TN. Overall, the AC method significantly reduced N losses via leachates, further reducing TN losses. This observation suggests that AC might be an appropriate method for highly efficient nitrogen management during dairy manure composting.

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Section: Discussionmentioning

confidence: 84%

Impact of Composting Methods on Nitrogen Retention and Losses during Dairy Manure Composting

Yang

Liu

Zhu

et al. 2019

IJERPH

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“…Larger pools of MBC and MBN were produced by the combination of biochar and N fertilizer, especially in the top soil (0-10 cm) layer [34]. In the second year higher microbial activities was recorded in the treatment which is treated with poultry manures it may be due to decomposition of PM lesser than that of Compost [35].…”

Section: Discussionmentioning

confidence: 96%

Effects of Organic Amendments and Mineral Fertilizers on Optimizing Nutrient Cycling in Alkaline Soil

Khan,

Muhammad

2024

P. Bulletin

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Soil microbial biomass carbon (MBC) and nitrogen (MBN) are indicators of microbial size and soil fertility, representing a vital living nutrient reservoir in the soil. This study aimed to evaluate the impact of various organic sources, such as poultry manure (PM), farmyard manure (FYM), compost (CM), and biochar (BC), along with different levels of mineral fertilizers on soil microbial dynamics and nutrient (N, P) mineralization through laboratory incubation experiments. The organic amendments were applied at rates of 0.25%, 0.5%, and 1.0% of soil carbon (w/w), combined with 75%, 50%, and 25% of recommended doses of NPK (120:90 and 60 kg N, P2O5, and K2O ha-1), respectively. Following the application of amendments, the soil underwent a 16-day incubation period to measure CO2 emissions and a 28-day period for N and P mineralization. The rate of CO2 evolution exhibited a significant increase with higher carbon levels but declined over time. Compost showed the highest CO2 evolution at any given time, followed by PM, FYM, and BC, likely due to a higher readily available fraction of carbon. Compost, particularly at the 1% C level in combination with inorganic fertilizer, led to a significant increase in soil microbial biomass C and N. Nitrogen and phosphorous mineralization increased with the duration of the 28-day incubation period. However, the net release of N and P decreased with higher carbon levels, potentially associated with both immobilization and the fact that higher levels received lower (25%) NPK levels. Nevertheless, soils treated with CM and PM maintained higher levels of N and P, associated with their higher fraction of labile nutrients. These findings suggest that the continuous application of organic sources enhances N and P mineralization, soil microbial biomass, and their activity. Therefore, the regular application of carbon sources emerges as a strategic approach to improving the soil health of less fertile alkaline calcareous soils.

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“…The different manure treatments were used to capture the effects of the volatilization of nutrients due to solar heating (temperature). An impermeable plastic sheet (0.15-mm-thick polyethylene film) was used as lining underneath the manure ( 36 ).The cattle manure was stored for 5 months. Manure collection was completed in 3 days to eliminate time effects.…”

Section: Methodsmentioning

confidence: 99%

Organic soil fertility management practices for the management of fall armyworm, Spodoptera frugiperda (J.E. Smith), in maize

Bayissa,

Abera,

Temesgen

et al. 2023

Front. Insect Sci.

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The fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), is a polyphagous pest native to the Americas. It attacks several crops but in particular causes significant damage to maize, which is a staple crop in Africa. Organic soil amendments have an impact on the physical, chemical, and biological properties of soil, which enhance plant resistance to or tolerance of insect pests and also promote a diverse population of natural enemies of the pest. However, the practices followed for the management of crop residue and animal manure affect their use as organic soil amendments. A field experiment was conducted to evaluate the effect of maize residue and cattle manure incorporation into soil on FAW in the Mana and Omo Nada districts of the Jimma zone, southwest Ethiopia, during the 2018/19 cropping season. Treatment involved three factors: five different levels of maize residue retention (0%, 25%, 50%, 75%, and 100%), different cattle manure storage systems (control, open, steel roof, and grass roof), and two different districts (Mana and Omo Nada). These variables were organized in a randomized complete block design and replicated three times. The infestation and damage ratings were collected from 30 days after planting at 20-day intervals. The results indicated that maize plots with retained crop residue had a significant reduction in FAW infestation compared with plots without maize residue (control) in both study districts. Furthermore, manure-fertilized plants had a lower percentage of FAW infestation when compared with maize plots without cattle manure in both study districts. The lowest severity of FAW infestation was recorded in a plot with 100% of residue incorporated and treated with cattle manure stored under a grass roof in the Mana district. Therefore, conventional tillage with 100% maize residue incorporation and the application of cattle manure stored under a grass roof showed the best result for reducing FAW infestation in maize. However, further studies are important to determine the effect of treatments over seasons and locations on FAW infestation and maize yields.

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Anaerobic degradation of municipal organic waste among others composting techniques improves N cycling through waste-soil-plant continuum

Cited by 9 publications

References 31 publications

Impact of Composting Methods on Nitrogen Retention and Losses during Dairy Manure Composting

Impact of Composting Methods on Nitrogen Retention and Losses during Dairy Manure Composting

Effects of Organic Amendments and Mineral Fertilizers on Optimizing Nutrient Cycling in Alkaline Soil

Organic soil fertility management practices for the management of fall armyworm, Spodoptera frugiperda (J.E. Smith), in maize

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