scholarly journals Sources of Light Density Microplastic Related to Two Agricultural Practices: The Use of Compost and Plastic Mulch

Environments ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 36
Author(s):  
Benjamin van Schothorst ◽  
Nicolas Beriot ◽  
Esperanza Huerta Lwanga ◽  
Violette Geissen
Keyword(s):  
The Netherlands ◽  
Organic Waste ◽  
Production Systems ◽  
Agricultural Practices ◽  
Organic Fertilizers ◽  
Vegetable Production ◽  
Plastic Mulch ◽  
Terrestrial Environment ◽  
Information Gap ◽  
Light Density

Microplastics (MPs) constitute a known, undesirable contaminant of the ecosystems. Land-based pollution is considered to be an important contributor, but microplastics in the terrestrial environment remains largely unquantified. Some agriculture practices, such as plastic mulch and compost application, are suspected to be major sources of microplastics as plastics are exposed to weathering or are present in organic fertilizers. The overall aim of this research is to bridge the terrestrial plastic contamination information gap, focusing on light density microplastics in two vegetable production systems in Southeast Spain and in the Netherlands. The selected farmer in Spain used plastic mulch for more than 12 years whereas the two farmers in the Netherlands annually applied 10 t ha−1 compost for the past 7 and 20 years. Samples from two different depths were collected: 0–10 cm and 10–30 cm. High quality compost samples originating from municipal organic waste and from garden and greenhouse waste were obtained from two Dutch compost plants. All samples from both Spanish (n = 29) and Dutch (n = 40) soils were contaminated by microplastics, containing 2242 ± 984 MPs kg−1 and 888 ± 500 MPs kg−1, respectively. Compost samples from municipal organic waste (n = 9) were more contaminated than the ones from garden and green house wastes (n = 19), with, respectively, 2800 ± 616 MPs kg−1 and 1253 ± 561 MPs kg−1. These results highlight the need for studies focusing on the effects of microplastics in the environment and the need for monitoring campaigns and the implementation of thresholds to regulate the microplastic contamination.

scholarly journals Runoff Loss of Pesticides and Soil: A Comparison between Vegetative Mulch and Plastic Mulch in Vegetable Production Systems

2001 ◽  
Vol 30 (5) ◽  
pp. 1808-1821 ◽  
Author(s):  
Pamela J. Rice ◽  
Laura L. McConnell ◽  
Lynne P. Heighton ◽  
Ali M. Sadeghi ◽  
Allan R. Isensee ◽  
...  
Keyword(s):  
Production Systems ◽  
Vegetable Production ◽  
Plastic Mulch

scholarly journals Determinantes de la adopción de estándares en el subsector hortícola del Noroeste de México.

2011 ◽  
Vol 12 (2) ◽  
pp. 175 ◽  
Author(s):  
Antonio Martínez R. ◽  
Belem Avendaño R. ◽  
Ana Acosta M.
Keyword(s):  
Product Differentiation ◽  
Production Systems ◽  
Agricultural Practices ◽  
Vegetable Production ◽  
Competitive Advantages ◽  
Natural Factors ◽  
Northwestern Region ◽  
Northwestern Mexico ◽  
Northwest Region

<p>La producción de hortalizas en la región Noroeste de México es una actividad económica relevante, lo cual se atribuye a factores naturales como el clima, calidad de los suelos y la cercanía al mercado de Estados Unidos de Norteamérica. Es evidente la creación de ventajas competitivas mediante la diferenciación del producto, por su calidad, a través de la aplicación de normas. La adopción de estándares es una práctica generalizada, sin embargo no está cuantificado el rol de las instituciones en estos procesos y su contribución a aumentar o inhibir los niveles de adopción de los mismos. El objetivo de este trabajo es analizar los factores que mas influyen en la implementación de grados y estándares en el sector hortícola en la región noroeste de México. Para la medición de la adopción se utilizó un modelo logit que permite determinar el efecto de las variables del entorno microeconómico que incide en la adopción de estándares. Se concluye que los cambios en los sistemas de producción mediante la aplicación de buenas prácticas agrícolas y las organizaciones de productores con actividades de capacitación, seguimiento y acompañamiento son lo que han contribuido en mayor forma al proceso de adopción de estándares por parte de las empresas productoras de hortalizas.</p><p> </p><p><strong>Determinants of the adoption of standards in the horticulture subsector of Northwestern Mexico.</strong></p><p>Vegetable production in the northwestern region of Mexico is an important economic activity; this is attributed to natural factors such as climate, soil quality, and proximity to the U.S. market. Clearly, the creation of competitive advantages gained by product differentiation, while maintaining quality, is extremely important and can be achieved through the application of standards. The adoption of standards is widespread; however, the role of institutions in these processes and their contribution to enhancing or inhibiting levels of implementation has not yet been quantified. The aim of this paper is to analyze the factors that most influence the execution of grades and standards in the horticultural industry in the northwest region of Mexico. Implementation levels were measured using a logit model that determined the effect of microenvironmental variables on them. The paper concludes that changes in production systems through the application of good agricultural practices and changes in organizations through training, monitoring, and support are what have helped companies that produce vegetables adopt and implement more standards.</p>

EFECTO DE DIFERENTES ABONOS ORGÁNICOS EN LA PRODUCCIÓN DE TOMATE (Solanum lycopersicum, L)/ EFFECT OF DIFFERENT ORGANIC FERTILIZERS ON THE PRODUCTION OF TOMATO (Solanum lycopersicum, L)

Biotecnia ◽  
2016 ◽  
Vol 18 (3) ◽  
pp. 33-36
Author(s):  
Ricardo Augusto Luna Murillo ◽  
Juan José Reyes Pérez ◽  
Kleber Augusto Espinosa Cunuhay ◽  
Marcelo Vicente Luna Murillo ◽  
Fiamma Valeria Luna Quintana ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Production Systems ◽  
Block Design ◽  
Positive Influence ◽  
Organic Production ◽  
Organic Fertilizers ◽  
Control Treatment ◽  
Vegetable Production ◽  
Solanum Lycopersicum L ◽  
Randomized Block Design

Entre los sistemas de producción orgánica bajo condiciones controladas, la producción de hortalizas con aplicación de enmiendas es una práctica que se ha extendido a escala mundial. El objetivo del presente estudio fue evaluar los efectos de los abonos orgánicos sobre algunas variables de producción en plantas de tomate. Las evaluaciones se realizaron a los 65 días después del trasplante, utilizándose abonos orgánicos edáficos y foliares y un tratamiento control. Los tratamientos fueron aplicados una vez sembradas las plantas a los 30 días, siguiendo un diseño experimental de bloques al azar. Sobre la base de los resultados obtenidos se comprobó que a los 65 días después de la siembra, los abonos humus de lombriz más ácido húmico tienen una influencia positiva sobre el número y peso total de frutos; el tratamiento bocaschi más ácido húmico fue superior al diámetro del fruto. ABSTRACTAmong the organic production systems under controlled conditions, vegetable production with application of amendments is a practice that has spread worldwide. The aim of this study was to evaluate the effects of organic fertilizers on some production variables tomato plants. Evaluations were performed at 65 days after transplantation, using different soil and foliar organic fertilizers and a control treatment. The treatments were applied once planted plants at 30 days, following an experimental randomized block design. Based on the results obtained it was found that at 65 days after sowing, the humus fertilizer more acids plus humic have a positive influence on the total number of fruits, and the total weight of fruits, and treatment bocaschi plus humic acid was higher in the diameter of the fruit.

scholarly journals Quantification and Analysis of Microplastics in Farmland Soils: Characterization, Sources, and Pathways

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 330
Author(s):  
Hoda Fakour ◽  
Shang-Lien Lo ◽  
Nathan Thadeo Yoashi ◽  
Angelbetter Marselian Massao ◽  
Nelson Naboth Lema ◽  
...  
Keyword(s):  
Agricultural Practices ◽  
Potential Effect ◽  
Soil Samples ◽  
Plastic Mulch ◽  
Terrestrial Environment ◽  
Soil Biodiversity ◽  
Soil Ecosystems ◽  
Farmland Soils ◽  
Different Depths ◽  
And Function

While microplastics (MPs) have been identified extensively in aquatic ecosystems, their presence remains largely unexplored in soil ecosystems. Considering the potential effect of MPs on soil biodiversity and function, the present study investigated and analyzed the abundance and characteristics of MPs in soil profile. Taking soil samples from Tainan city farms, as one of the hotspots of agricultural practices in Taiwan, concentrations, types, compositions, pathways, and sources of MPs in farmland soils were quantified. Results showed that MPs were found in all soil samples in different depths ranging from 12–117 items/m2 and MP abundance in farms adjacent to the suburban roads was about three times more than in enclosed farms separated from roads. Fragment and fibers were the main forms and low-density polyethylene was the dominant polymer of detected MPs. Historical land use, extensive application of plastic mulch, and utilization of fruit protection foams were identified as the main sources of MPs in farmlands. This study identifies the presence of MP emissions in farmland soils and investigates its features, which could serve as a framework for future studies into the ecological effects of MPs in the terrestrial environment.

Effect of Plastic Mulch Type on Fomesafen Dissipation in Florida Vegetable Production Systems

Weed Science ◽  
2017 ◽  
Vol 66 (1) ◽  
pp. 142-148 ◽  
Author(s):  
Thomas V. Reed ◽  
Nathan S. Boyd ◽  
P. Christopher Wilson ◽  
Peter J. Dittmar
Keyword(s):  
Cover Crops ◽  
Field Experiments ◽  
Production Systems ◽  
Oxidase Inhibitor ◽  
Vegetable Production ◽  
Plastic Mulch ◽  
Purple Nutsedge ◽  
Growing Seasons ◽  
High Concentrations ◽  
Polyethylene Mulch

Mulches used in plasticulture systems could decrease dissipation of fomesafen, a protoporphyrinogen oxidase inhibitor, and dissuade producers from using the herbicide for fear of crop injury in subsequent growing seasons. Field experiments were conducted in Balm, FL, in 2015 and 2016 to investigate the effect of different plastic mulches on fomesafen dissipation, squash tolerance, and efficacy on purple nutsedge. Squash was injured less than 5% from fomesafen applications. The use of plastic mulches reduced purple nutsedge density at transplant by 60% compared with the no-mulch treatment. At transplant, treatments with low-density polyethylene mulch (LDPE), virtually impermeable film (VIF), and totally impermeable film (TIF) mulch had greater than 2-fold the fomesafen concentrations than treatments with clear or no mulch. At harvest in 2015, LDPE, VIF, and TIF treatments had greater fomesafen concentrations than clear and no-mulch treatments; however, concentrations in 2016 were similar for all treatments. Fomesafen can persist at high concentrations throughout the growing season in Florida plasticulture possibly limiting producer options for crop rotation and the use of cover crops.

Vegetable Response to Herbicides Applied to Low-Density Polyethylene Mulch Prior to Transplant

2009 ◽  
Vol 23 (3) ◽  
pp. 444-449 ◽  
Author(s):  
A. Stanley Culpepper ◽  
Timothy L. Grey ◽  
Theodore M. Webster
Keyword(s):  
Biomass Yield ◽  
Production Systems ◽  
Tomato Fruit ◽  
Growth And Yield ◽  
Low Density Polyethylene ◽  
Vegetable Production ◽  
Low Density ◽  
Plastic Mulch ◽  
Summer Squash ◽  
Polyethylene Mulch

Few herbicides are available for weed control in vegetable production systems using low-density polyethylene (LDPE) plastic mulch. With the elimination of methyl bromide for pest management and subsequent use of various alternative fumigants, the need for herbicides in vegetable production systems has increased. An experiment was conducted to evaluate tolerance of transplant summer squash and tomato to carfentrazone, flumioxazin, glyphosate, halosulfuron, or paraquat applied to the mulch prior to transplanting. After applying herbicides overtop of the mulch but prior to vegetable transplant, the mulch was either irrigated with 1.0 cm of water or not irrigated. Carfentrazone did not affect either crop regardless of irrigation. Irrigation readily removed glyphosate and paraquat from the mulch, as there was no adverse crop injury in these treatments. In the absence of irrigation, glyphosate and paraquat reduced squash diameter and tomato heights 18 to 34% at 3 wk after transplanting (WAT). Squash and tomato fruit numbers and fruit biomass (yield) were reduced 17 to 37%, and 25 to 33%, respectively. Halosulfuron reduced squash diameter and yield 71 to 74% and tomato heights and yields 16 to 37% when mulch was not irrigated prior to transplanting. After irrigating, halosulfuron had no affect on tomato, but reduced squash growth and yield 40 to 44%. Flumioxazin killed both crops when the mulch was not irrigated; and reduced squash yield 56% when irrigated. With irrigation, flumioxazin did not impact tomato fruit number, but did reduce tomato weight by 25%. These studies demonstrate the safety of carfentrazone, applied on mulch prior to transplanting either squash or tomato, regardless of irrigation, and also demonstrate the safety of glyphosate and paraquat if irrigated prior to transplanting. Conversely, flumioxazin should not be applied over mulch before transplanting either crop, regardless of irrigation. Halosulfuron application over mulch should be avoided before transplanting squash, regardless of irrigation, but can be applied prior to transplanting tomato if irrigated.

USE OF VEGETATIVE FURROWS TO MITIGATE COPPER LOADS AND SOIL LOSS IN RUNOFF FROM POLYETHYLENE (PLASTIC) MULCH VEGETABLE PRODUCTION SYSTEMS

10.1897/03-14 ◽  
2004 ◽  
Vol 23 (3) ◽  
pp. 719 ◽  
Author(s):  
Pamela J. Rice ◽  
Jennifer A. Harman-Fetcho ◽  
John R. Teasdale ◽  
Ali M. Sadeghi ◽  
Laura L. McConnell ◽  
...  
Keyword(s):  
Soil Loss ◽  
Production Systems ◽  
Vegetable Production ◽  
Plastic Mulch

Organic strawberry in Mediterranean greenhouse: Effect of different production systems on soil fertility and fruit quality

2016 ◽  
Vol 32 (6) ◽  
pp. 485-497 ◽  
Author(s):  
F. Tittarelli ◽  
F.G. Ceglie ◽  
C. Ciaccia ◽  
G. Mimiola ◽  
M.L. Amodio ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Production Systems ◽  
Organic Amendments ◽  
Agricultural Practices ◽  
Production Quality ◽  
Organic Production ◽  
Organic N ◽  
Vegetable Production ◽  
Soil Fertility Management ◽  
Fertility Management

AbstractIn Europe, the lack of specific rules regulating organic vegetable production in protected conditions has led to the implementation of extremely diversified systems of production, at different level of intensification. In this study, we compared three strawberry organic production systems based on the following main criteria of soil fertility management: input substitution (SB), a simplified system of organic production that mimics conventional agricultural practices and two systems characterized by a more complex soil fertility management, based on the introduction, in the rotation of agroecological service crops (ASCs) and compost (AC), and of ASCs and cattle manure (AM). Strawberry yields, in the compared systems, were not significantly different in both years of our research, while, as a whole, the yield in 2013 (30.3 Mg ha−1) was significantly higher than in 2014 (28.9 Mg ha−1). Crop nitrogen (N) needs, during the entire cycle of production, were satisfied according to the same pattern by SB, AC and AM, while green manuring and organic amendments in AM and AC determined a higher soil organic N content, compared with SB. As far as the production quality is concerned, both AM and AC treatments yielded strawberry fruits similar to SB, but with better characteristics in terms of color and phenolic content. AM and AC did not differentiate statistically in the two year period of our research.

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