Plastic mulch can dramatically reduce weeds and improve yields through soil warming and moisture regulation. However, it has a dark side for the environment and soil health.

While plastic mulch offers benefits such as weed suppression and enhanced crop growth, it also poses challenges for environmental sustainability and soil health. Issues like non-biodegradability, microplastic pollution, and disruption of soil organisms must be considered before determining its overall impact. Farmers are advised to weigh the pros and cons of using plastic mulch carefully and explore alternative sustainable practices.

Plastic mulch can dramatically reduce weeds and improve yields through soil warming and moisture regulation. However, it has a dark side for the environment and soil health.

How thick should plastic mulch be?

Most plastic mulches vary in thickness from 0.75 to 1.5 mil and may be smooth or embossed (McCraw and Motes, 1991). The diamond-shaped pattern on embossed plastics helps reduce contraction and expansion of the mulch. Also, it generally is more resistant to wind fatigue and cracking.

Is plastic mulch bad for plants?

Plastic mulch can dramatically reduce weeds and improve yields through soil warming and moisture regulation. However, it has a dark side for the environment and soil health.

What is the problem with plastic mulch?

Unfortunately, plastic mulch, which can cover between 50 percent and 70 percent of a field, increases surface water runoff from both rainfall and irrigation. That means more of the pesticides applied on plastic-mulched fields makes it into runoff leaving the field. pollutant concentrations.

Why use plastic mulch in garden?


Plastic mulches offer a variety of benefits: they can extend the growing season by warming garden soil, they can improve weed and insect management, they can help retain soil moisture, and they can increase crop yields and quality.

Why is black plastic mulch important?

Black plastic mulch is the most available and most used of others. It absorbs efficiently UV(Ultraviolet), visible, and infrared wavelengths of solar radiation released from the sun. It showed significant impact in increasing soil heat by absorbing high amount of radiation.

Why use black plastic mulch?

Black. The most widely used, available, and inexpensive of the colored mulches, black plastic mulch has excellent weed suppression ability because of its opacity. It is also useful for warming soil during the growing season, particularly if as much of the plastic as possible is in contact with the soil below.

Does plastic mulch work?

The most widely used, available, and inexpensive of the colored mulches, black plastic mulch has excellent weed suppression ability because of its opacity. It is also useful for warming soil during the growing season, particularly if as much of the plastic as possible is in contact with the soil below.

The Benefits of Using Black Plastic Mulch in Your Vegetable Garden

What are the advantages of plastic mulch?

Plastic mulch films provide multiple benefits for crop production. They help to control weeds and insects, increase soil and air temperature, reduce evaporation, minimize soil erosion, and prevent soil splashing on fruits or vegetables (Figure 1).

What is the best plastic mulch?

Black mulch is great for keeping the weeds away! This is the best all-purpose plastic mulch. The mulch will warm your soil and reduce evaporation to conserve water. You will have earlier and higher yields when using black mulch.

What crops use plastic mulch?

Plastic mulches have been used commercially on vegetables since the early 1960s. Although a va- riety of vegetables can be grown successfully using plastic mulches, muskmelons, tomatoes, peppers, cucumbers, squash, eggplant, watermelons and okra have shown significant increases in earliness, yield and fruit quality.

What are the disadvantages of using black plastic as mulch?


We have found temperatures of over 140°F at the surface of black plastic mulch. This can cause losses with transplants because stems near the mulch are damaged by the high heat. In crops seeded through the black mulch, germination is often reduced, and if plants do emerge, they can be killed by the excess heat.

What is a substitute for plastic mulch?

If the lack of access to application equipment or disposal concerns make you hesitate to use plastic mulch, there are many alternatives that will perform admirably, such as planters paper, landscape fabric, shredded bark or leaves. There are a few degradable plastic mulches available.

How do you water under plastic mulch?

Irrigation— Drip irrigation is recommended for use with plastic mulches although other types can be used successfully. The frequency of irrigation will depend on soil type and stage of crop growth.

Why is plastic mulch black?

Black plastic mulch, the predominate color used in vegetable production, is an opaque blackbody absorber and radiator. Black mulch absorbs most UV, visible, and infrared wavelengths of incoming solar radiation and re-radiates absorbed energy in the form of thermal radiation or long-wavelength infrared radiation.

Is plastic mulch bad for the environment?

Plastic mulch will cause damage to crops, soil, and the environment. Biodegradable mulch is one of the most important renewable and environmentally friendly materials. There are still many difficult tasks for the development of biodegradable mulch which need to be overcome.

Which color plastic mulch is best?

Black—The most widely used, available, and inexpensive of the colored mulches, black plastic mulch has excellent weed suppression ability because of its opacity. It is also useful for warming soil during the growing season, particularly if as much of the plastic as possible is in contact with the soil below.

In conclusion, the decision on whether plastic mulch is better depends on various factors such as environmental impact, cost-effectiveness, and effectiveness in weed control. While plastic mulch has its advantages in increasing crop yields and conserving soil moisture, it also raises concerns about plastic pollution and long-term sustainability. Alternative mulching methods, such as biodegradable mulch or organic mulch, may offer more eco-friendly solutions. Ultimately, the choice of mulching technique should be based on a careful consideration of these factors to ensure both agricultural productivity and environmental stewardship.