The use of micro climate management techniques in modern commercial agriculture, intensive horticulture, and sustainable fruit production are utilized as methods to increase crop yield, maintain the quality of the soil, and maximize the efficiency of resources. Uncovered farm soils can lose moisture rapidly due to evaporation lose nutrients due to leaching; experience surface compaction and be subject to increased competition from weeds as a result of extreme weather conditions. These circumstances necessitate the investment of significant capital by farmers into continuous irrigation systems synthetic fertilizer applications; and manual weeding of their fields. To assess whether the long term harvest benefits achieved through the utilization of high performance Mulch films outweigh the initial cost of purchasing the films, an evaluation was conducted. This study demonstrates the potential for cost savings for modern farm businesses. Furthermore, the inclusion of Biodegradable Mulch film in production processes adds the benefit of eliminating post harvest cleanup activities within the field, as well as contributing to environmentally sustainable practices on a global level. To address the challenges presented by these farming issues, numerous growers utilize specifically designed protective ground membranes that allow them to control the soil environment. Many growers utilize high performance Mulch films on raised bed systems to develop a microclimate that facilitates retention of moisture in the soil, supports consistent root zone temperatures, and inhibits weed seed germination.

Thermal Mechanics and the Optimization of Soil Microclimate

Agricultural ground membranes primarily function by physically controlling the soil temperature through the control of solar radiation. At the start of planting in early spring, the protective plastic sheets capture the solar thermal energy received from above and then transfer that thermal energy to the upper layer of the soil. As a result of this transferring of thermal energy, seed germination and early root development will occur much faster than with out the use of the membrane. Since the thermal energy stays in the soil for a longer period of time than it would with out the membrane, growers can grow high value crops weeks before they would with out the use of the membrane. This means that growers can charge more money for their produce since they are among the first to provide consumers with fresh produce. On the other hand, reflective double sided membranes can reflect the intense solar radiation away from the soil on hot summer days. By reflecting the intense solar radiation, these types of membranes assist in keeping the root zone cooler, thus reducing the potential for heat stress on sensitive crops. Additionally, protective membranes make for a more gradual transition in soil temperatures between day and night. Having a more gradual transition in soil temperatures helps to establish optimal environmental conditions for continuous plant growth and equal fruit development.

The Dynamics of Soil Hydrology and Water Conservation

Water shortages are currently one of the largest threats to modern global farming practices; therefore, effective drip irrigation control is essential for the future sustainability of farms. As a direct consequence of continuous surface evaporation, the exposed upper layer of soil will lose substantial quantities of water used for irrigation. As a result, there will be multiple occasions throughout the year where large amounts of water are needed to irrigate crops, leading to nutrient losses from the crop's root zone. To stop the loss of water due to evaporation, a physical barrier a closed impermeable polymer membrane is created to reduce evaporation of moisture in the soil, allowing the moisture to condense into droplets and return to the root zone. A closed hydrologic cycle is created, reducing the amount of water needed to irrigate fields by up to 50%, preserving valuable groundwater resources, and lowering the cost of pumping water. In addition, protective ground films applied over raised plant bed help protect those beds against sudden heavy rains, preventing soil erosion, crusting, and severe loss of nutrients applied to the beds, maintaining nutrient availability near the root zone.

Photobiological Weed Suppression and Chemical Reduction

The most major barrier to attaining maximum crop production levels in most commercial production systems is the presence of weeds. Weeds directly compete with crops for moisture, nutrient availability via fertilizer application, and light. The most common form of weed control has been through the use of synthetic herbicides applied at very high rates. Although synthetic herbicides are effective in controlling weeds, they also have several negative impacts on the environment. One of these impacts is the accumulation of synthetic herbicides within the soil profile which can adversely affect the beneficial microorganisms living in the soil. Another impact is the leaching of synthetic herbicides out of the soil profile and into the surrounding environment. An alternative way to control weeds in a more environmentally friendly manner than by using synthetic herbicides is through the use of mechanical methods such as the use of opaque polymer ground covers. Opaque polymer ground covers act as barriers that block the passage of photosynthetic radiation from reaching the soil surface. Therefore, dormant weed seeds that exist below the ground cover will not be capable of germinating or growing. Using this type of non toxic weed control reduces the need for purchasing expensive synthetic herbicides, protects the beneficial microorganisms in the soil, and satisfies the requirements for obtaining organic certification for commercial farming.

Bio-based Polymer Engineering and Soil Integration Engineering

The use of traditional polyethylene films provides a great deal of durability; however, the disposal of non biodegradable plastics at the end of each growing season is a significant cost in both labor and environmental impact. Fragments of plastic that are left behind after harvesting may cause contamination to the soil of fields, which could lead to microplastic contamination and potential issues for farm machinery. In order to help alleviate the problem of waste disposal related to mulching, researchers in the field of materials science have developed new advanced biodegradable mulch films from corn starch, polylactic acid (PLA) and aliphatic aromatic co polyesters. These environmentally friendly films offer the same level of tensile strength, weed control and moisture retention as traditional plastic films during the period of active crop growth. Following harvest, the bio based film can be incorporated directly into the field soil, where the film will naturally decompose through the action of indigenous soil bacteria and fungi, converting the film into organic biomass, carbon dioxide and water, without creating any residual pollution in the environment.

This research will analyze the economic viability of the project and its life cycle investment

The use of protective soil membranes within the commercial farming industry requires that each individual grower determine if the higher initial purchase price of such membranes is worth it due to potential increases in crop yields and/or decreases in operating expenses. To estimate the initial mulching film cost per acre, growers need to consider several material characteristics of the membrane. Such characteristics include the width of the roll; the total number of meters in length; the film thickness as measured in microns; the amount of UV stabilizers included in the membrane; and the raw materials used to create the membrane. Although premium quality UV-treated rolls or certified biodegradable rolls cost more initially than thin, standard plastic films, they offer increased tear-resistance which decreases the possibility of premature field damage occurring during mechanical installation. There are also numerous other advantages that may be obtained through utilizing engineered ground covers. Such advantages may include, among others, decreased labor costs associated with controlling weeds; decreased amounts of water and fertilizer needed to irrigate crops and increased crop yields. Combined, these advantages may provide the grower with a rapid return on investment, thereby rendering engineered ground covers as an economically viable agricultural input.

Structural Adaptability and Crop Application Versatility

As long as agriculture exists, so will the application of protective ground membranes. Protective ground membranes are applied in various ways across multiple agricultural systems, including open field vegetable production, high tunnel polyhouses, commercial orchard operations, and nursery stock production. In addition, horticultural crops such as strawberries, bell peppers, tomatoes, cucumbers, melons, and cut flowers respond immediately to a properly balanced root system environment. Specialty growers utilize custom perforated membranes to achieve precise plant spacing while reducing field labor requirements associated with high density plantings. Reflective ground covers installed between tree rows in orchards and vineyards are used to direct solar radiation upwards toward the dense canopy above, resulting in improved fruit color, Brix sugar content, and overall economic value.

Conclusion

The application of the most current technology for the development of the most advanced agricultural mulch films is a key element of the current movement toward the development of sustainable agriculture, precision horticulture, and active preservation of soils. The capability of these engineered films to provide precise soil temperature controls, improved water retention, safe application of Mulching film price and proven field performance allow growers to maximize their land use potential while reducing their reliance on chemicals. Due to the increasing pressure of environmental regulation being applied to agricultural practices and the increasing scarcity of water, the rapid expansion of the application of higher performing biodegradable and UV resistant polymer films will allow for continuous improvement in agricultural efficiency and help maintain the global food supply system for future generations.

Frequently Asked Questions (FAQs)

What are some of the ways that a biodegradable mulch film made from recycled materials?

Microorganisms in the soil bacteria and fungi decompose the bio based polymer matrix, which converts the film into non-toxic organic biomass, water and carbon dioxide, with no residual microplastics.

What are the main elements that contribute to the total cost of mulching film for commercial farming orders?

Prices vary depending on the materials used, the thickness of the film in micrometers, the width and length of each roll, how it is colored, the quality of its UV stabilizer, and if it is made with standard plastics or biodegradable plastics.

Who is the largest exporter of Mulch film?

The Singhal Landscape Geotextile Company is considered by many around the world to be one of the best manufacturers and exporters of quality biodegradable, UV-stabilized mulch film used in agriculture.

What color combination of agricultural mulch film is most effective for growing vegetables?

Because of its ability to reflect sunlight and therefore protect against insect pests as well as keeping the soil cooler, silver-black mulch film is the most commonly used type. The silver side of this film is the one that faces upwards towards the sun, whereas the black side faces downwards. This allows the film to provide both protection from the sun as well as prevent weeds from growing beneath it.

Is it possible to apply agricultural mulch films with ease using a tractor mounted mechanical applicator?

Yes, Singhal Landscape Geotextile makes high tensile, tear resistant mulch films that are designed to be deployed easily and without problems with standard tractor-drawn laying equipment.