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Mongolian sweetvetch seedling raising method

A technology of astragalus and seedling soil, applied in the fields of botanical equipment and methods, seed immunization, seed and rhizome treatment, etc., can solve the problems of low survival rate of seedlings, short seedling length, unguaranteed quality, etc., so as to facilitate greenhouse management. Operation, improve seedling uniformity, reduce the effect of pest infestation

Pending Publication Date: 2017-05-24
GANSU AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The following problems should be paid attention to in the process of raising seedlings of Astragalus mongolica: sufficient water is required for seed germination and seedling stage, otherwise it will not be easy to emerge or die due to drought; during the growth process, it is afraid of heat and stagnant water, and if there is too much water, it will easily cause root rot ; Rock Astragalus mongolica is a deep-rooted plant with thin coating, many roots, many branches, chicken claw shape, and poor quality; due to the lack of rainfall and dry climate in the northern region, the water evaporates quickly, traditional ditch irrigation or flood irrigation methods It is easy to cause uneven irrigation and compaction of the soil surface, resulting in low emergence rate of Astragalus mongolica seeds, low survival rate of seedlings, short length of seedlings produced, thin diameter, and quality cannot be guaranteed

Method used

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  • Mongolian sweetvetch seedling raising method
  • Mongolian sweetvetch seedling raising method

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Embodiment 1

[0024] A method for raising seedlings of Astragalus mongolica, comprising the following steps:

[0025] 1) Selection of nursery soil: For the seedbed, the soil rich in humus and fertile is acidic soil. For the greenhouse built in the spring of the previous year or that year, 1000kg of decomposed manure, 10kg of compound microbial fertilizer, 2kg of potassium sulfate, and ammonium nitrate should be applied per mu. 10kg and quicklime 2kg, the soil is deeply plowed 30-40cm;

[0026] 2) make seedling bed: adopt length 100cm, width 80cm, the plastic seedling groove of height 50cm, open some air holes that diameter is 2mm at the bottom, put into the seedling soil prepared in step 1);

[0027] 3) Seed pretreatment: add the compound fungicide into 5L of water and decoct for 20 minutes to obtain the fungicide; add the fungicide to quicklime at a weight ratio of 10:2 to obtain a compound liquid; mix the compound liquid and water at a weight ratio of 1:6 Mix evenly to obtain a compound ...

Embodiment 2

[0039] A method for raising seedlings of Astragalus mongolica, comprising the following steps:

[0040] 1) Choose acidic soil rich in humus and fertile soil. For greenhouses built in the spring of the previous year or that year, apply 50kg of ordinary compound fertilizer per mu provided by a fertilizer company in Xianyang, Shaanxi, and plow the soil deeply by 30-40cm. seedbed;

[0041] 2) Soak the seeds of Astragalus mongolica in warm water at 55°C for 24 hours, remove and drain, and mix them with fine sand according to the seed fine sand ratio of 1:3;

[0042] 3) Use the method of spreading, sow the treated rock Astragalus mongolica seeds evenly, the amount of seeds per square meter is 20g, after spreading, manually cover with 1-2cm of fine soil, and spread the soil evenly with wooden boards;

[0043] 4) After sowing, spray and irrigate for 0.5-1.5 hours a day at a temperature of 18-24°C. Before the spring of the second year, dig out the seedlings from the end of April to th...

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Abstract

The invention discloses a mongolian sweetvetch seedling raising method. The mongolian sweetvetch seedling raising method is composed of steps of seedling selection, seedling bed manufacturing, seed pretreatment, seed retreatment, sowing and seedling raising, seedling management, transplanted seedling management and seedling transplantation. Through seed pretreatment and retreatment, the mongolian sweetvetch seedling raising method significantly increases the emergence rate of seeds and promotes synchronous seed germination, namely, completes the germination period generally within 12 days, enhances the seedling uniformity, improves the quality and yield of field transplanted mongolian sweetvetch, facilitates greenhouse management and operation, significantly improves the production efficiency and reduces mongolian sweetvetch seedling planting cost. The mongolian sweetvetch seedling raising method reduces the disease rate to lower than 0.5%, saves pesticide application, reduces the incidence rate of diseases and insects, ensures that the seedling quality can completely meet national green agriculture planting standards, obtains more than 99% of mongolian sweetvetch seedlings with healthy and unforked roots and ensures a seedling survival rate higher than 95% and a seedling length of 35-40 cm.

Description

technical field [0001] The invention relates to the technical field of agricultural economic crop breeding, in particular to a method for raising seedlings of Astragalus mongolica. Background technique [0002] At present, sandstorms are affecting the northern part of our country, and there is a trend of invading southward. Therefore, preventing desertification has become a long-term and arduous project. Astragalus mongolica grows well in sandy land, and can effectively fix mobile sand dunes and improve the soil conditions of sand dunes. Therefore, it has certain reference and guiding significance for desertification prevention and control in other areas. Astragalus mongolica is a perennial leguminous shrub that grows fast, is resistant to barrenness, cold, drought and sand burial, and has strong root tillering ability. Specifically, the rhizomes of P. mongolica have strong vegetative reproduction ability, which enables it to survive on semi-fixed and shifting sandy soil, ...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01C1/00A01C1/08
CPCA01C1/00A01C1/08A01G22/00
Inventor 周向睿赵桂琴周志宇
Owner GANSU AGRI UNIV
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