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Plastic mulch is a product used in plasticulture in a similar fashion to mulch, to suppress weeds and conserve water in crop production and landscaping. Certain plastic mulches also act as a barrier to keep methyl bromide , both a powerful fumigant and ozone depleter, in the soil.
Cigarette butts, consisting primarily of plastic, are the most littered item worldwide and are therefore also pervasive in New Zealand. Plastic Litter is a particularly harmful form of litter as it threatens the New Zealand environment and the wildlife that inhabits it. Due to littering, New Zealand's endangered species are at risk of extinction.
Evaporation from soil accounts for 25-50% of water used in irrigation, using plastic mulch prevents much of this evaporation and thus reduces the amount of water needed to grow the crop. [8] This conservation of water makes plastic mulch favourable for farmers in dry and arid climates where water is a limited resource.
A mulch is usually, but not exclusively, organic in nature. It may be permanent (e.g. plastic sheeting) or temporary (e.g. bark chips). It may be applied to bare soil or around existing plants. Mulches of manure and compost will be incorporated naturally into the soil by the activity of worms and other organisms.
Plasticulture is the use of plastic mulch in agriculture. Farmers use plastic sheets as mulch to cover 50-70% of the soil and allow them to use drip irrigation systems to have better control over soil nutrients and moisture. Rain is not required in this system, and farms that use plasticulture are built to encourage the fastest runoff of rain.
This page was last edited on 9 February 2024, at 18:28 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.