The increase in fertilizer prices was 20% after the pandemic, which increased the cost of crop production in Peru. For this reason, research was conducted on the analysis of the chemical and biological characteristics and their relationship with the yield of radish nourished with compost based on plant residues. The objective was to analyze the chemical and biological characteristics and their relationship with the yield of radish nourished with vegetable waste-based compost. It is based on the methodology applied with an experimental approach; therefore, the statistical model of the Completely Randomized Block Design was used, which consisted of 3 blocks and 5 treatments that were T1 with 0, T2 with 4, T3 with 6, T4 with 8 and T5 with 10 t/ha of compost based on vegetable residues, and the doses were applied 14 days after sowing. Physical characteristics (total plant length, plant weight, bulb equatorial diameter and marketable yield), nutrient concentrations (nitrogen, potassium, phosphorus, calcium, magnesium, sulfur, molybdenum, iron, manganese, copper, zinc, boron, chlorides and sodium) in leaves and stomata density were evaluated. The results determined that T5 stood out in total plant length with 28.07 cm, plant weight with 75 g, bulb equatorial diameter with 4.52 cm and commercial yield with 22.53 t/ha. In the total contribution of nitrogen in relation to yield with 300.44 kg/ha. Profitability with 186.8%. Quantification of stomata per treatment with 598 stomata/mm2 and concentration of nutrients in leaves at T3 with nitrogen, potassium, phosphorus and magnesium. It concludes that T5, which has an adequate concentration of nutrients in leaves such as magnesium, manganese, zinc and stomata density of 598 stomata/mm2 influenced optimal biochemical reactions that resulted in the highest yield with 22.53 t/ha, differing by 31.38% in relation to T1.
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http://dx.doi.org/10.1590/1519-6984.283287 | DOI Listing |
Br J Hist Sci
March 2025
Department of History and Philosophy of Science, University of Cambridge, UK.
Sir Albert Howard helped popularize the idea of translating 'Eastern' practice into 'Western' science in the field of agriculture. His approach to composting has been foundational to organic farming and counterposed with the field of agricultural chemistry. This depiction of feuding ideologies - organic versus chemical - is based largely on Howard's opposition to the fragmentation of scientific knowledge and its products, especially artificial fertilizer.
View Article and Find Full Text PDFMaterials (Basel)
March 2025
Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Roma, Italy.
The viability of anaerobic degradation treatment as an end-of-life option for commercial disposable bioplastic tableware, typically certified as compostable, was assessed. Two types of polylactic acid-based items were selected and tested under mesophilic conditions (38 °C) for 155 days, until reaching a plateau. Advanced chemical characterization of the products was performed with a combination of analytical techniques, i.
View Article and Find Full Text PDFWaste Manag
March 2025
School of Environmental Studies, China University of Geosciences, Wuhan 430074, Hubei, China; Hubei Key Laboratory of Yangtze Catchment Environmental Aquatic Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, Hubei, China; National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. Electronic address:
The safe disposal and utilization of bulk solid waste (SW) are critical challenges. Manufactured soil, a soil-like material composed of SW, offers a novel solution for resource recycling. However, the mechanisms underlying SW-based manufactured soil fertility development remain unclear.
View Article and Find Full Text PDFJ Environ Manage
March 2025
Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Science, China Agricultural University, Beijing, China.
In order to reduce NO emissions during composting, the effects of different nitrification inhibitors (NI), dicyandiamide (DCD) and 3,4-dimethylpyrazole phosphate (DMPP), on compost maturity, NO, and NH emissions were studied under continuous incremental addition. This study used pig manure and corn straw as composting materials, based on the total nitrogen (TN) content of the initial mixture, two treatments were set: DCD (2.5% in the early phase and 5.
View Article and Find Full Text PDFNat Food
March 2025
Department of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, USA.
Global food loss and waste continues to increase despite efforts to reduce it. Food waste causes a disproportionally large carbon footprint and resource burdens, which require urgent action to transition away from a disposal-dominated linear system to a circular bioeconomy of recovery and reuse of valuable resources. Here, using data from field-based studies conducted under diverse conditions worldwide, we found collective evidence that composting, anaerobic digestion and repurposing food waste to animal feed (re-feed) result in emission reductions of about 1 tCOe t food waste recycled compared with landfill disposal.
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