Patent ID: 7866088

Claim:
A method of growing vegetables in soil, the method comprising: (a) applying an effective amount of a fumigant to the soil; (b) placing a barrier mulch film over the fumigated soil, the film comprising: (i) a first upper layer comprising a polyolefin and a sunlight reflecting/absorbing agent selected from the group consisting of sunlight reflecting agents and sunlight absorbing agents; (ii) a second layer comprising an adhesive; (iii) a third layer comprising a barrier plastic comprising a polyamide and about 5 to 30 weight percent caprolactam, the third layer being essentially free of blended polyolefin; (iv) a fourth layer comprising an adhesive; and (v) a fifth lower layer comprising a polyolefin and a sunlight absorbing agent; (c) planting vegetables in the soil under the barrier mulch film; (d) maintaining the barrier mulch film in place over the soil for substantially the entire growing season to reduce weeds, increase moisture, and control temperature; and (e) harvesting the vegetables.