Addition of fish pond sediment and rock phosphate enhances the composting of green waste

Zhang, Lu; Sun, Xiangyang

doi:10.1016/j.biortech.2017.02.073

Cited by 88 publications

(42 citation statements)

References 32 publications

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“…Addition of a phosphorus source can significantly increase the compost TP content. Similar results were observed Agronomy 2020, 10, 288 7 of 18 by Zhang and Sun [26]. In their research, the addition of rock phosphate in the green waste compost markedly increased the TP content of the final product.…”

Section: Phosphorus Changessupporting

confidence: 84%

“…After digestion of samples with HNO 3 -H 2 O 2 in a microwave, total potassium (TK), total calcium (Ca), total sodium (Na), total magnesium (Mg), and total iron (Fe) were determined using an atomic absorption spectrophotometer model TAS-990 (Beijing, China), while other metals were measured by inductively coupled plasma mass spectrometry (ICP-MS) model ICAP Q. According to the methodology of Zhang and Sun [26], microbial biomass P was estimated based on the difference between TP in chloroform-fumigated vs. non-fumigated samples. The contents of lignin, cellulose, and hemicellulose were determined according to the method of Yu et al [27].…”

Section: Chemical Propertiesmentioning

confidence: 99%

“…Consequently, the degradation of organic matter was promoted, which in turn resulted in the generation and release of metabolic heat. The abundant pore and high surface area of the CM contributed to the high porosity of the composting mass and gas exchange, which likely increased microbial activity [26,32]. On the other hand, the total P content of CB and CM was very low (Table 2), but the addition of BM greatly increased the P content of the composted products.…”

Section: Nitrogen Changesmentioning

confidence: 99%

“…On the other hand, the total P content of CB and CM was very low (Table 2), but the addition of BM greatly increased the P content of the composted products. This exogenous phosphorus in the composting could increase the microbial activity and, consequently, heat generation [26,30].…”

Section: Nitrogen Changesmentioning

confidence: 99%

“…However, they found different results of the degradation rate of organic carbon by adding different phosphorus sources to the composting. Some studies have suggested that the addition of mineral P sources would decrease the organic matter decomposition rate during composting [37,38], while other studies obtained the opposite result [26,30]. Lee et al [39] and Maluf et al [24] added different forms of phosphorus during composting, and both concluded that the addition of phosphorus increased the organic matter decomposition rate during composting, but the addition of a high concentration of soluble salt to the compost piles inhibited the activity of the decomposers.…”

Section: Organic Carbon Contentmentioning

confidence: 99%

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Combined Addition of Bovine Bone and Cow Manure: Rapid Composting of Chestnut Burrs and Production of a High-quality Chestnut Seedling Substrate

Chen

Tian

et al. 2020

Agronomy

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In China, chestnut burrs (CB) are produced at a rate of a million tons per year as the major byproduct of chestnut orchards. It is necessary to utilize the chestnut forest green waste and convert it into a valuable seedling media for the sustainable cultivation of chestnut seedlings. In this study, we composted CB with two waste products of cattle farming, namely cow manure (CM) and bovine bone (BM). We also evaluated the potential of CB compost application in chestnut forest sustainability. Results indicated that the best combination was the addition of 15% BM and 55% CM. This combination significantly improved the composting environment by increasing pH, enhancing phosphorus concentration and mineral elements such as Ca, Na, Mg and Zn, and shortened the composting period to 38 days. This combination also resulted in the highest content of citric acid-P (109.20 times than the control treatment) and the lowest content of NH 4 + -N (0.28 times than control treatment) indicating a better N and P structure of the final compost product. This combination achieved a greater degradation rate of CB cellulose (61.45%), hemicellulose (37.87%), and a more significant degradation of outer epidermis structure. When CB compost was used as a growing media, a significant decrease in photosynthesis stress of chestnut seedlings was observed, which was mainly manifested as a decrease in photochemical quenching (qP) and an increase of the maximum efficiency of PSII photochemistry under dark-adaption (Fv/Fm). Addition of 10% CB compost (in volume basis) is suggested, which resulted in the tallest chestnut seedlings (59.83 cm) with a stem diameter of 0.91 cm after six months of growth. In summary, this research provides an environmentally friendly strategy for chestnut orchard sustainability: rapid composting of CB, then immediate application as a high-quality substrate for chestnut seedlings.Agronomy 2020, 10, 288 2 of 18 step for chestnut production. The popularization of burr removal equipment has resulted in the need for intensive management of CB. Due to CB recalcitrant biodegradability and knotty spicular structure, incineration is still the main method of dealing with CB waste [3,4]. Since CB, as FGW, is rich in organic matter and minerals, it is desirable to convert it into a high value byproduct such as compost.Composting is a popular and clean method to dispose of FGW [5]. Mature FGW compost has high porosity and high organic carbon content and can be utilized as a high-quality soil amendment [6]. Shrestha et al. [7] reported that the application of compost increased soil organic carbon content, reduced CO 2 and N 2 O emissions, and increased CH 4 uptake. Chehab et al. [8] indicated that the olive FGW compost amendment resulted in an increased performance in mature olive trees and in a maximum yield of photosystem II (Fv/Fm). Composting recycles organic matter, nitrogen, phosphorous, and mineral elements in the FGW when growing seedlings [9]. In a recent study, Shalizi et al. [10] increased the biomass of Eucalyptus bentham...

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Section: Phosphorus Changessupporting

confidence: 84%

Section: Chemical Propertiesmentioning

confidence: 99%

Section: Nitrogen Changesmentioning

confidence: 99%

Section: Nitrogen Changesmentioning

confidence: 99%