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Protection method for stevia rebaudiana stubble to safely overwinter

A technology of stevia and root stubble, which is applied to the field of protecting stevia root stubble from overwintering safely, and can solve the problems of being unable to survive the winter in the open field, poor cold resistance, and stevia being frozen to death, and achieves the effects of easy control, low cost, and good effect

Inactive Publication Date: 2013-11-13
崔广荣
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AI Technical Summary

Problems solved by technology

[0002] Stevia is a perennial plant, but due to its poor cold resistance, it is generally impossible to spend the winter in the open field in the north of the Yangtze River in my country. In the cold winter, stevia will freeze to death in the field

Method used

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Embodiment Construction

[0016] A method for protecting Stevia rebaudiana stubbles from overwintering safely will be further described below in conjunction with specific examples.

[0017] 1. Using corn stalks to cover the technology of protecting Stevia rebaudiana stubble overwintering safely

[0018] On December 20, 2012, we observed that the aboveground part of Stevia line B1 growing in the field had been frozen to death, with an area of ​​about 0.1 mu, and white new shoots appeared on the underground roots. The next day, we ground-covered it with corn stalks to a thickness of 30 cm. The lowest temperature forecast for winter that year was -11°C. On March 21, 2013, the local daily average temperature reached 11.5°C, and the minimum temperature has stabilized above 0°C. We removed the corn stalk covering the ground of the stevia field on the next day, observed from April 1st, new shoots of stevia appeared in the field one after another, and cut the seedlings when the seedling height was about 20 c...

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Abstract

The invention discloses a protection method for stevia rebaudiana stubble to safely overwinter and relates to a technology that winter protection and warm keeping are performed on stevia rebaudiana during overwintering so as to enable the stevia rebaudiana to safely overwinter. The protection method comprises the steps: when the overground part of the stevia rebaudiana growing in a field just die of freeze, covering the stevia rebaudiana in the field by utilizing crop straws by certain thickness; and when weather gets warm again and the lowest air temperature is stably kept to be above 0 DEG C, removing the crop straws. The overwintering protection technology of the stevia rebaudiana is not provided with any facility, and is low in cost and reliable in effect.

Description

technical field [0001] A method for protecting stevia root stubbles from overwintering safely involves cold-proofing and keeping warm for stevia during the overwintering period, and a technology for safe overwintering, more specifically covering and protecting stevia in the field under the condition of low temperature and severe cold in winter, so that Technology for safe wintering. Background technique [0002] Stevia is a perennial plant, but due to its poor cold resistance, it is generally impossible to spend the winter in the open field in the north of the Yangtze River in my country. In the cold winter, stevia will freeze to death in the field. At present, the common practice of stevia overwintering is to transplant stevia into a greenhouse or plastic greenhouse before winter to keep warm and survive the winter. This practice is conducive to the accelerated reproduction of stevia, and a large number of production seedlings can be obtained after spring. For those germp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/02
Inventor 崔广荣
Owner 崔广荣
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