Method for improving saline and alkaline land by glycyrrhiza uralensis nodule bacteria

A technology of licorice root nodules and saline-alkali land, applied in the agricultural field, can solve problems such as unsatisfactory, low content of licorice glycyrrhizic acid and licorice glucoside, affecting licorice quality and market sales, etc., so as to change microclimate, improve feeding value, increase yield and effectively The effect of ingredient content

Inactive Publication Date: 2015-05-06
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The usual licorice cultivation period is 2-3 years, and 3500kg / hm of dry licorice can be harvested 2 , but the content of glycyrrhizic acid and liquiritin obtained by common cultivation methods is relatively low, which cannot meet the content requirements of 2.0% and 1.0% stipulated in the Chinese Pharmacopoeia, thus affecting the quality and market sales of licorice.

Method used

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  • Method for improving saline and alkaline land by glycyrrhiza uralensis nodule bacteria
  • Method for improving saline and alkaline land by glycyrrhiza uralensis nodule bacteria
  • Method for improving saline and alkaline land by glycyrrhiza uralensis nodule bacteria

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Embodiment 1

[0021] The cultivation of embodiment 1. Ural Glycyrrhizae comprises the steps:

[0022] A. Transplanting: Select annual licorice seedlings for spring transplanting, place the licorice seedlings at a 40-degree inclination along the opened ditch wall and place them in the same direction, bury the root head of the licorice seedlings 4 cm below the soil layer, and the root tail along the ditch Lay flat without bending; the distance between plants is 12cm, and the distance between rows is 30cm. Nitrogen and phosphorus fertilizers were applied at the same time; the cultivation density was 225,000 licorice plants / hm at one time in saline-alkali land 2 . The fertilization rate of nitrogen fertilizer is 75kgN / hm 2 , the amount of phosphate fertilizer applied is 240 kgP 2 o 5 / hm 2 .

[0023] B. Seedling cutting: Cut seedlings for the first time during the vigorous growth period of licorice, and cut off 1 / 4 of the plant height; cut seedlings for the second time during the deciduo...

Embodiment 2

[0025] Embodiment 2. The cultivation of Glycyrrhizae uralensis comprises the following steps:

[0026] A. Transplanting: Select the annual licorice seedlings for spring transplanting, place the licorice seedlings at a 45-degree inclination along the opened ditch wall and place them in the same direction, bury the root head of the licorice seedlings 5 ​​cm below the soil layer, and the root tail along the ditch Lay flat without bending; the distance between plants is 15cm, and the distance between rows is 30cm. Nitrogen and phosphorus fertilizers were applied at the same time; the cultivation density was 225,000 licorice plants / hm at one time in saline-alkali land 2 . The fertilization rate of nitrogen fertilizer is 150kgN / hm 2 , the amount of phosphate fertilizer applied is 240 kgP 2 o 5 / hm 2 .

[0027] B. Seedling cutting: Cut seedlings for the first time during the vigorous growth period of licorice, and cut off 1 / 4 of the plant height; cut seedlings for the second t...

Embodiment 3

[0028] The cultivation of embodiment 3. Ural Glycyrrhizae comprises the steps:

[0029] A. Transplanting: Select the annual licorice seedlings for spring transplanting, place the licorice seedlings at a 35-degree inclination along the opened ditch wall and place them in the same direction, bury the root head of the licorice seedlings 3 cm below the soil layer, and the root tail along the ditch Lay flat without bending; the distance between plants is 10cm, and the distance between rows is 30cm. Nitrogen and phosphorus fertilizers were applied at the same time; the cultivation density was 225,000 licorice plants / hm at one time in saline-alkali land 2 . The fertilization rate of nitrogen fertilizer is 100kgN / hm 2 , the amount of phosphate fertilizer applied is 180 kgP 2 o 5 / hm 2 .

[0030] B. Seedling cutting: Cut seedlings for the first time during the vigorous growth period of licorice, and cut off 1 / 4 of the plant height; cut seedlings for the second time during the de...

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Abstract

The invention discloses a method for improving saline and alkaline land by glycyrrhiza uralensis nodule bacteria. The method comprises the following steps: optimally selecting a medium-slight saline and alkaline land with an average annular rainfall of below 500mm and a content of less than 0.7 percent in an optimal glycyrrhiza uralensis cultivation area, selecting a plot which has sandy loam with deep and thick soil layer of above 1m, and is excellent in ventilation and flat in terrain, and transplanting annular glycyrrhiza uralensis seedlings in spring; performing first-time shearing in a glycyrrhiza uralensis growth peak period, wherein 1/4 of the height part of the plant is sheared; and performing second-time shearing in a leaf fall period, wherein 1/2 of the height part of the plant is sheared. According to the method, the saline and alkaline land is improved by using a nitrogen fixation function of nodule bacteria generated by the glycyrrhiza uralensis as one leguminosae Chinese medicinal herb, and meanwhile, a phosphatic fertilizer is singly applied to facilitate development of root nodules and increase of the nodule bacteria, so that the nitrogen fixing capacity of the glycyrrhiza uralensis can be enhanced.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to a method for cultivating licorice on saline-alkali land. Background technique [0002] Licorice ( Glycyrrhiza uralensis ) is a leguminous plant of the genus Licorice. Its aboveground parts are often in clusters, and its underground roots and rhizomes are well developed. It has excellent characteristics such as cold resistance, heat resistance, and salt and alkali resistance. Important psammophyte economic plant resources. At the same time, licorice is one of the most commonly used Chinese medicinal materials, known as "ten directions and nine herbs". The roots and rhizomes of licorice have the effects of clearing heat and detoxifying, relieving cough and expectorant, nourishing the spleen and stomach, and harmonizing various medicines. With the continuous deepening of the development and utilization of licorice, the value of licorice has doubled. For many years, the med...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00A01G1/00
Inventor 郭晔红郭丽琢
Owner GANSU AGRI UNIV
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