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NOXIOUS WEED CONTROL BY SOIL SOLARIZATION
Patent Number: 6189466
Docket Number: 2098
Serial Number: 9006562
Date Patented: 02/20/2001
Patent Number: 6189466
Docket Number: 2098
Serial Number: 9006562
Date Patented: 02/20/2001
Agricultural Research Service
Date Issued:
February 20, 2001
Abstract:
The invention relates to a method of controlling noxious weeds, particularly nutsedge (Cyperus spp) by soil
solarization. Soil solarization is a hydrothermal process that utilizes the sun's energy to heat moist soil that is mulched under polyethylene. The basic concept of soil solarization is to use transparent, thermoplastic IR retentive films to allow transmission of light energy to the soil where it is absorbed and used to heat the soil. The clear plastic film decreases convective heat loss so that increased soil temperatures are achieved. If the temperature under the plastic film and in the soil reaches sufficiently high temperatures, weeds, insects, and pathogens are damaged or killed. The need for chemical pesticides, or the amount of the pesticide, is decreased by using soil solarization. In arid cloud-free regions, the soil solarization technique has found wide application
for the control of some soil-borne diseases and weeds. The practice of the invention is of particular value in the
production of cash crops, particularly strawberries or tomatoes through weed control, under a hot, cloudy environment.
Inventors:
Thomas R. Sinclair
Crop Genetic & Environment Research
1700 S.W. 23rd Drive
Gainesville, FL 32608
(352) 392-6180 / Fax: (352) 374-5896 |
Carlene A. Chase
(Same address as first inventor) |
Frank Fornari
AT Polymers & Films, Inc.
562 Tull Road
West Monroe, LA 71292
(318) 396-5167 |
Daniel O. Chellemi
Subtropical Plant Pathology Research
2120 Camden Road
Orlando, FL 32803-1419
(561) 467-3779 / Fax: (561) 468-5668
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