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57 results for “compost”
Evaluating rose yield responses to compost treatments: Data from an 18-month field study in Kenya
<p>This dataset and these scripts supports the manuscript 'Modelling cut rose yield after compost amendment over an 18-month period using repeated sigmoidal Gompertz curve fitting' by Evy de Nijs, Roland Bol, Albert Tietema & Emiel van Loon. </p> <p>Roses are an important crop for the floricultural sector of Kenya. Roses are a perennial crop and under continuous production for six to ten years. To optimize rose production, it is essential to understand how different management practices impact yield over time. This dataset contains a detailed record of rose yield data collected in an 18-month large-scale field experiment. The aim of this experiment was to evaluate the effect of pre-planting compost amendment on the yield and quality of cut roses. It was conducted in a polythene greenhouse near lake Naivasha, Kenya. Yield data included the number of stems harvested per day per flowering bed. Data presented here offer a comprehensive view of the impacts of different compost treatments on the yield of cut roses. Combined with the offered scripts, this is the framework presented in the aforementioned manuscript. This approach allows to use repeated growth curves to analyze yields compared to a baseline General Additive Model. </p> <p> </p> <p>de Nijs, E. A., Tietema, A., Bol, R., & van Loon, E. E. (2025). Modeling Cut Rose Yield Over an 18‐Month Period After Compost Amendment Using Repeated Sigmoidal Gompertz Curve Fitting. <em>Plant‐Environment Interactions</em>, <em>6</em>(3), e70049.</p>
Biocrust in compost addition plots in central New Mexico (2021-2024)
We investigated how 6.3 mm of surface-dressed compost (food-based vs. manure-based) at a central New Mexico, USA Tribal rangeland affected the temperature, soil C and N percent and stable isotope values values, and aggregate stability using the Herrick dip test.
Microbial and soil moisture impacts of compost amendments and rainfall pulses in a degraded dryland soil, Arizona, 2021-2023
Compost, an organic soil amendment, has been proposed to increase soil carbon storage and water-holding capacity in drylands, and this management strategy may be particularly impactful in degraded drylands with low soil organic content. Compost additions and rainfall variability may interact to affect soil moisture, which is an important catalyst for soil microbial activity. This dataset is from a study that investigated how variable compost application amounts and simulated rainfall pulses affect soil moisture, microbial activity, and carbon content in a laboratory incubation study. Soils were amended with different amounts of compost (0, 0.35, and 0.70 g cm -2) and water pulses (5, 10, and 15 mm) in a full-factorial design. Each treatment received the same cumulative amount of water throughout the incubation, but pulses occurred at different frequencies (every 5, 10, and 15 days). Soil moisture content and microbial respiration were measured daily. Soil carbon content was measured at the end of the experiment.
Dataset: Insight in molecular degradation patterns and co-metabolism during rose waste co-composting
<p>This dataset and these scripts supports the article 'Insight in molecular degradation patterns and co-metabolism during rose waste co-composting' as published in Biogeochemistry. https://doi.org/10.1007/s10533-023-01092-1</p> <p>Roses are an important crop for the floricultural sector of Kenya and roses are a perennial crop and under continuous production for six to ten years. The cultivation produces large quantities of green waste, up to 50 kg per hectare per day. In this experiment we aimed to gain insight in the decomposition patterns underlying rose waste composting and to identify co-metabolisms of ligneous materials. Samples were taken during a six-month experiment and analyzed by pyrolysis-GC/MS (see manuscript for analytical details).</p>
Dataset: Co-composting to close the cycle of resources during rose cultivation in Kenya: An agronomic and pesticide residue assessment
<p>This dataset and these scripts supports the article 'Co-composting to close the cycle of resources during rose cultivation in Kenya: An agronomic and pesticide residue assessment' as published in Cleaner Waste Systems. https://doi.org/10.1016/j.clwas.2024.100154</p> <p>Roses are an important crop for the floricultural sector of Kenya and roses are a perennial crop and under continuous production for six to ten years. The cultivation produces large quantities of green waste, up to 50 kg per hectare per day. In this experiment we focused on exploring the potential of large-scale composting of rose waste in Kenyan rose cultivation. The objective of this study was to examine the potential of composting rose waste in this large-scale commercial setting with low operational costs, exploring its benefits and challenges.</p> <p>In piles of 4000 kg green waste the evolution of three mixtures was closely monitored in terms of their physico-chemical parameters. Furthermore, the pesticide residue levels of mature rose waste were assessed. </p>
Dataset: The impact of rose-waste compost on commercial cut rose cultivation in Kenya
<p>This dataset and these scripts supports the manuscript 'From waste to fertilizer: The impact of rose-waste compost on commercial cut rose cultivation in Kenya' as submitted to Cleaner Waste Systems. </p> <p>Roses are an important crop for the floricultural sector of Kenya and roses are a perennial crop and under continuous production for six to ten years. The cultivation produces large quantities of green waste, up to 50 kg per hectare per day. In this experiment we evaluated the impact of compost amendment on the yield and quality of cut roses cultivation in a large-scale commercial setting with over 7,500 rose plants. It was conducted between August 2022 and February 2024 near Lake Naivasha in Kenya. Additionally we evaluated the potential of compost to partially substitute mineral fertilizer. Yields were recorded daily and cut rose quality and physicochemical soil parameters were assessed every three to six months to comprehensively evaluate the impact of compost incorporation on cut rose production.</p>
Dataset: Co-composting rose waste as a sustainable waste management strategy: Nutrient availability and disease control
<p>This dataset and these scripts supports the article 'Assessing the potential of co-composting rose waste as a sustainable waste management strategy: Nutrient availability and disease control' as published in Journal of Cleaner production. https://doi.org/10.1016/j.jclepro.2023.136685</p> <p>Roses are an important crop for the floricultural sector of Kenya and roses are a perennial crop and under continuous production for six to ten years. The cultivation produces large quantities of green waste, up to 50 kg per hectare per day. In this experiment we investigated the potential of co-composting rose waste on a small scale. The objective was to increase the understanding of composting lignocellulosic rose waste, which will help with the implementation of composting practices within Kenyan rose production and thereby reduce its negative ecological impact.</p> <p>In a small-scale composting system (30L) the evolution of five mixtures was closely monitored in terms of their physico-chemical parameters. Furthermore, the in-vitro disease suppressive capacity of mature rose waste was assessed. </p>
Compost Amendments up to One Inch Restore Dry Rangeland Soil Health and Plant Productivity in New Mexico, 2020-2022
Dry rangelands are important systems for coproducing food and other ecosystem services, but degradation of productivity, diversity, and water holding capacity may require active intervention to restore. Use of compost amendments on grasslands has been shown to improve many outcomes related to carbon, water, and nutrients unless excessive amounts are used, but practitioners lack guidance of optimal and cost-effective use to meet their management goals. We compared compost additions from 0-2.54 cm at two ranches in New Mexico and measured plant composition and biomass, soil characteristics such as bulk density, infiltration rate, aggregate stability, and total carbon content under baseline conditions and one- and two years after addition.
Bioplastic Compost Data
<p>Dataset collected by 4 different citizens from 4 different composters over time (between end of April to end of September) with regards to a composting process. The temperature is one of the primary indicators of the composting process. Other data are visual and smell data, and can be found in the general worksheet. The composted material is bioplastic cutlery and cups (cPLA and PLA).</p> <p>Furthermore, a pivot table of temperature data from 4 different composters over time.</p>
HotBin composter temperature measurements
<p>This is a CSV data table with temperature measurements of a HotBin composter, as displayed by the thermometer on its top. Environment temperature, rain is also recorded. A home-made heater unit is installed near the lid of the HotBin, this is a simple kettle that boils the water when a button is pressed, then heats up the water to boiling temperature and does no more heating until the button is pressed again. The composter is fed mainly with kitchen waste, occasionally with garden waste.</p>
Mesofauna community influences litter chemical trajectories during early-stage litter decay in compost
Decomposition of organic material is a fundamental ecosystem process, the rate of which is moderated by both litter chemistry and decomposer communities. Because litter chemistry changes throughout decomposition, we would expect the decomposer food web to interact with these changes in their basal resource to alter the trajectories of chemical changes during decay. To investigate how decomposer mesofauna influence patterns of litter chemical change throughout early stages of decay, we tracked mass loss, macro- and micronutrient elements, and fiber chemistry dynamics in Arizona sycamore (Platanus wrightii) leaves decomposed under optimal decay conditions in a biotically diverse compost pile. By using litterbags of two different mesh sizes to manipulate the mesofauna gaining access to the litter, we record how the complexity of the soil mesofauna community changes the trajectory of litter chemistry.
The high dose of biochar reduces polycyclic aromatic hydrocarbons losses during co-composting of sewage sludge and wheat straw
<p>The data presents the raw data of organic solvent extractable polycyclic aromatic hydrocarbons and freely dissolved polycyclic aromatic hydrocarbons and temperature during composting as well as physico-chemical properties of composted material.</p>
scmcclelland/joint-mediation-study: Data, Analysis, and Figure Scripts for "Soil organic carbon sequestration jointly-mediated by plants and microbes after compost application"
<p>This repository contains data, analysis, and figure scripts to create findings from the manuscript "Soil organic carbon sequestration jointly-mediated by plants and microbes after compost application" currently under minor revisions.</p> <p>This release includes updated code, primarily improvements to figures, and a new script for a supplementary map figure.</p>
Development of a Low-Cost Method for Quantifying Microplastics in Soils and Compost Using Near-Infrared Spectroscopy
<p>Datasets and scripts for data evaluation</p>
Fig. 4 in Positive Effect Of Compost Application On Oil Pumpkins Growth And Zinc Enrichment
Fig. 4. Zinc accumulation in pumpkin seeds, depending on the level of zinc in compost (no significant differences; p> 0,05).
Fig. 1 in Positive Effect Of Compost Application On Oil Pumpkins Growth And Zinc Enrichment
Fig. 1. Variation in mean temperatures during vegetation season (in May-August), 2016 compared with the average multi-annual temperature DV (Galvonaitė et al. 2013).
Data and R-code on a cross-sectional study of factors associated with lameness in dairy cows housed in freestall and compost-bedded pack dairy farms in southern Brazil
<p>The data correspond to a cross-sectional study designed to investigate factors associated with lameness in dairy cows on intensive farms in southern Brazil.<br> Farms: 38 freestall and 12 compost-bedded pack visited once in 2016. All lactating cows (n = 13,716) were examined and body condition score (BCS) and gait score were assessed. Additionally, some variables were collected through inspection of facilities and using data from an interview with farmers on routine herd management practices.<br> Additional information is provided in the published paper ("Factors associated with lameness prevalence in lactating cows housed in freestall and compost-bedded pack dairy farms in southern Brazil" https://doi.org/10.1016/j.prevetmed.2019.104773)</p>
Fig. 1 in First Records from Japan of European Vermi-composter Dendrobaena veneta (Rosa, 1886) and of "Classical" Lumbricus terrestris Linnaeus, 1758 (Annelida, Oligochaeta, Megadrilacea, Lumbricidae)
Fig. 1. Fishing baits as supplied throughout Japan contain a variety of worm specieas including Eisenia fetida, Dendrobaena veneta & Lumbricus terrestris (author's photo).
HTC composting viruses: release v1.0
<p>This release contains viral and bacterial genomes datasets and relevant code used to generate results for the manuscript“Mesophilic and thermophilic viruses drive nutrient cycling during hyperthermophilic composting".</p>
Upgrade of bio-oil produced from the sisal residue composting
<p>The present work studies the composting effects on the chemical characteristics of bio-oil produced by pyrolysis of sisal residue. Three systems were composted with sisal residue proportions to sisal fiber powder of 100:0, 90:10, and 75:25, respectively. The systems showed reductions of 33–48% (extractive), 70–80% (hemicellulose), and 80–90% (cellulose) after composting. An increase in lignin content was observed in all systems. The pyrolysis of the composted systems was performed at 450 and 550 °C. At both temperatures, this process was selective in producing a large concentration of hydrocarbons (>160% increase), mainly alkanes and alkenes, reducing the concentrations of ketones, aldehydes, and phenolics (>50%) and eliminating esters, furans, and acetic acid to composted biomasses. The higher temperature favored aromatics and cyclic hydrocarbon production from the pyrolysis of composted samples. In addition to these results, composting helped reduce the oxygenated bio-oil species by approximately 44 - 75% at the lowest and ~ 69% at the highest temperatures. These results indicate that composted sisal residue can produce bio-oils that are more suitable for biorefineries since they are rich in aliphatic hydrocarbons and non-oxygenated species.</p>
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