Organic matter and nitrogen balance in rabbit fattening and gaseous emissions during manure storage and simulated land application

Dinuccio, Elio; Biagini, Davide; Rosato, Roberta; Balsari, P.; Lazzaroni, C.

doi:10.1016/j.agee.2018.09.018

Cited by 11 publications

(9 citation statements)

References 55 publications

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“…The second group, which consisted of the composts, had an N Fig. 2 Analytical data (moisture, N, P 2 O 5 , K 2 O, organic matter content, and humus potential) for the raw manures and composts collected in Bafoussam (B) and Yaoundé (Y) and comparison with the data reported in the literature (Li) (in g 100 g -1 DM) for (i) hen droppings (Agarry et al 2010;Dekker et al 2012;Edwards and Daniel 1992;Li et al 2015;Nicholson et al 1996;Olowoboko et al 2018;Pan et al 2009), (ii) rabbit manure (Chabalier et al 2006;Ciesielczuk et al 2017;Dinuccio et al 2019;Gómez-Brandón et al 2013;Lazcano et al 2013;Li et al 2015;Moral et al 2005;Moreno-Caselles et al 2002;Paredes et al 2015;Wu et al, 2010;Youssef and Eissa 2017), (iii) goat manure (Agarry et al 2010;Al-Kindi et al 2016;Azeez et al 2010;Cavalcante et al 2010;Haidar et al 2003;Kafle and Chen 2016;Lopez Fernandez et al 2018;Mafongoya et al 2000;Olowoboko et al 2018;Paredes et al 2015;Shamsul et al 2018;Zhang et al 2013), (iv) pig manure (Adesanya et al 2016;Bernal et al 2009;Dhyani et al 2018;Hamm et al 2016;Hjorth et al 2010;Karimi et al 2018;Li et al 2015;Moreno-Caselles et al 2002;...…”

Section: Nitrogen Contentmentioning

confidence: 97%

Cash for trash: an agro-economic value assessment of urban organic materials used as fertilizers in Cameroon

Thuriès

Ganry

Sotamenou

et al. 2019

Agron. Sustain. Dev.

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The rapid expansion of cities in sub-Saharan Africa generates increasing volumes of diversified organic wastes that require management and a high population need for local and fresh vegetables. Linking the different sources of organic materials generated in these cities with the needs of local food producers for fertilizers prepared from recycled organic materials is challenging. This requires that producers obtain the results they expect from the organic materials they recycle. Thus, recycling these organic materials in their raw form or after composting presents an opportunity for periurban agriculture, although the great variability in the quantity and quality of these materials raises questions about the consistency between their agronomic value and their economic value. In two large cities of Cameroon (Yaoundé and Bafoussam), different types of organic materials were sampled: unprocessed livestock waste and composts from manure or municipal solid waste. From an agronomic perspective, we calculated the fertilization value based on the nutrient (nitrogen, phosphorus, and potassium) content of the organic materials. From an economic perspective, we calculated the value based on the nutrient content of the organic materials and their substitution unit prices and recorded the current market price. This is the first time that this combined approach has been used in sub-Saharan Africa. Our results showed considerable variability and discrepancy in both the agronomic and the economic values. The market prices overvalued the urban composts by a factor of 6, while chicken feces were undervalued by a factor of 3. The unprocessed organic materials were the most interesting from an economic and agronomic perspective. Our findings suggest that (i) the composting process needs to be improved and (ii) the humus potential should be calculated to better assess the amendment value of organic materials and as a basis for adjusting their market price.

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Section: Nitrogen Contentmentioning

confidence: 97%

Cash for trash: an agro-economic value assessment of urban organic materials used as fertilizers in Cameroon

Thuriès

Ganry

Sotamenou

et al. 2019

Agron. Sustain. Dev.

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“…The most common approach for the solid and the liquid fractions obtained after the separation is their use as fertilizer. There is particular concern about the emission from the resulting solid fraction [145][146][147][148][149][150] due to the higher area for gas exchange compared to the liquid fraction (Figure 8). While the gaseous emitting area of the slurry is the horizontal cross-section of the storage tank, the shape of the pile of dried organic manure was described by Dinuccio et al [146,147] as a truncated cone heap with a greater area to volume ratio.…”

Section: Dewatering Of the Blend Of Wa And Anaerobic Digestatementioning

confidence: 99%

Wood Ash Based Treatment of Anaerobic Digestate: State-of-the-Art and Possibilities

Abelenda

Aiouache

2022

Processes

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The problem of current agricultural practices is not limited to land management but also to the unsustainable consumption of essential nutrients for plants, such as phosphorus. This article focuses on the valorization of wood ash and anaerobic digestate for the preparation of a slow-release fertilizer. The underlying chemistry of the blend of these two materials is elucidated by analyzing the applications of the mixture. First, the feasibility of employing low doses (≤1 g total solids (TS) ash/g TS digestate) of wood ash is explained as a way to improve the composition of the feedstock of anaerobic digestion and enhance biogas production. Secondly, a detailed description concerning high doses of wood ash and their uses in the downstream processing of the anaerobic digestate to further enhance its stability is offered. Among all the physico-chemical phenomena involved, sorption processes are meticulously depicted, since they are responsible for nutrient recovery, dewatering, and self-hardening in preparing a granular fertilizer. Simple activation procedures (e.g., carbonization, carbonation, calcination, acidification, wash, milling, and sieving) are proposed to promote immobilization of the nutrients. Due to the limited information on the combined processing of wood ash and the anaerobic digestate, transformations of similar residues are additionally considered. Considering all the possible synergies in the anaerobic digestion and the downstream stages, a dose of ash of 5 g TS ash/g TS digestate is proposed for future experiments.

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“…In recent years, the competitiveness of the rabbit industry has become strong, especially in Hungary, France, and Spain, since rabbits are the second largest farmed species in Europe. Similarly, China and Argentina also have large rabbit breeding industries ( Dinuccio et al., 2019 ; Li and Wu, 2021 ). Subsequently, a large quantity of rabbit manure is produced, which may cause environmental pollution if not treated effectively.…”

Section: Introductionmentioning

confidence: 99%

Rabbit manure compost as a peat substitute for compound growing media: Proportioning optimization according to physiochemical characteristics and seedling effects

Li¹,

Hao²,

Yang³

et al. 2022

Front. Plant Sci.

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A large amount of rabbit manure is produced with the development of the rabbit industry, which will cause environmental pollution without proper treatment. Rabbit manure compost may be suitable for seedling cultivation, considering its low moisture, low heavy metal, high lignocellulose, and good fertilizer effect. In this study, a pre-proportioning test of growing media was conducted to optimize the ratio of perlite and vermiculite with peat/rabbit manure compost according to their physicochemical properties. Then, based on the results of the first proportioning optimization, the mixing ratio of rabbit manure compost and peat was further optimized using a bioassay. In this bioassay, salt-tolerant calendula (Calendula officinalis L.) and salt-intolerant cucumber (Cucumis sativus L.) were selected as test plants. The seedling effects (e.g., seedling emergence percentage, plant growth parameters, plant biomass, and nutrient effects) were evaluated. It was shown in the results that the rabbit manure compound growing media could be used for the seedlings, and suitable seedling performance was obtained with the increase of the total porosity (5.0%–61.2%), organic matter content (8.3%–39.9%), and nutrient elements from the rabbit manure compost. From the perspective of seedling emergence, there was no significant difference between rabbit manure compound media and peat treatment, in which the highest emergence percentages were >90%. At the same time, the nutrient performance of plant aboveground was significantly increased in rabbit manure compound growing media compared to peat treatment. In particular, the contents of P and Mg were increased by 31%–141.4% and 80.4%–107.8% for calendula and by 82.6%–117.4% and 35.1%–67.6% for cucumber, respectively. It was indicated in the two-step optimization that the rabbit manure compost proportion of 30%–50% (that is, 60%–100% instead of peat) was more suitable. Additionally, the greenhouse gas emission could be reduced by using rabbit manure compost replacing peat, and the greenhouse gas emission reduction potential would be 3.65 × 105–4.06 × 108 kg CO2-equivalent/year in China, which has important ecological significance.

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Organic matter and nitrogen balance in rabbit fattening and gaseous emissions during manure storage and simulated land application

Cited by 11 publications

References 55 publications

Cash for trash: an agro-economic value assessment of urban organic materials used as fertilizers in Cameroon

Cash for trash: an agro-economic value assessment of urban organic materials used as fertilizers in Cameroon

Wood Ash Based Treatment of Anaerobic Digestate: State-of-the-Art and Possibilities

Rabbit manure compost as a peat substitute for compound growing media: Proportioning optimization according to physiochemical characteristics and seedling effects

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