| 摘要 |
A method of controlling the environment of a field of plants. The method includes providing a movable cover and moving the cover the cover over the field of plants. The cover is left over the field of plants for an amount of time to control at least one parameter of the environment of the field of plants. The cover is then removed from at least a portion of the field of plants and at least some harvesting is done from at least some of the plants in the field of plants. The parameters include temperature, light and parasites.
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