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In the summer of ١٩٩٨ at the Kearney Agric. Center-University of California, two experiments were carried out to evaluate solarization methods for disinfestation of nursery soil from soil born fungi and nematodes. On rototilled sandy loam soil, ٢m ٢ x ٢٠cm high beds were shaped into place, each experiment had ٥ treatments with ٣ replications, tow treatments received the double tent over black or silver plastic. The other ٢ treatments had single tent. In addition, a nontreated control was placed in the shade.
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