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A kind of soilless green seedling raising method of rhubarb

A rhubarb and green technology, applied in the direction of soilless cultivation, horticultural methods, botanical equipment and methods, etc., can solve the problems of high soil occupation rate of rhubarb seedlings, affecting seedling yield and quality, and inability to obtain rhubarb seedlings, etc. , to increase the growth period and survival rate after transplanting, reduce seedling mortality, and achieve good heat preservation effects

Active Publication Date: 2021-04-16
GANSU HEBO LONG PHARMA TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, there are many problems in the traditional method of raising seedlings with soil as rhubarb seedling substrate: 1) rhubarb seedlings have a high occupation rate of soil; 2) rhubarb seedlings have deep roots, which are difficult to dig and easily cause root damage , reduced the survival rate after transplanting; 3) the pollution of soil by pesticides and heavy metals affected the yield and quality of seedlings
At present, the root length of rhubarb seedlings raised in traditional soil is 16-19cm, the root diameter is 1.0-1.6cm, and the incidence rate is at least 10-20%. If soilless seedlings can be used to solve the disadvantages of traditional soil seedlings, you can further explore rhubarb Seedling growth potential, so it is the general trend to produce rhubarb seedlings by soilless seedling cultivation, but it is found in practice that simple application of existing soilless seedling cultivation methods cannot obtain robust rhubarb seedlings, the reason is that soilless seedling cultivation All the nutrients needed for seedling growth come from the nutrient solution, but the research and development of the nutrient solution for authentic Chinese herbal medicine is not perfect, and the nutrients required by various Chinese herbal medicines are not the same, and some key elements cannot be provided by the existing nutrient solution. Without these key elements, the seedlings of Chinese herbal medicines will not grow well. The core point is what kind of substances or combinations of substances these key elements are. At present, there are not many research results. Therefore, simply using soilless seedling cultivation technology will not be successful. To obtain robust rhubarb seedlings more efficiently, it is necessary to adopt a new type of rhubarb seedling raising technology to solve the above problems in an all-round way

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: the comparative experiment of mixed matrix

[0020] In mid-May 2017, Tianjiahe Community, Wangzhuang Village, Biyan Town, Longxi County, Dingxi City, Gansu Province chose a flat land as a seedling test base.

[0021] 1) Make a mixed substrate: collect aboveground waste from rhubarb seedlings, astragalus seedlings, and potatoes, mainly the leaves and stems of the three plants, and dry them continuously at about 60 degrees Celsius. Afterwards, directly crush and sieve to keep particles of about 2 mm for subsequent use; then prepare mixed substrates according to the volume ratio of vermiculite: desulfurized cinder: waste particles in a volume ratio of 5:2.5:2.5;

[0022] 2) Making seedbeds: Build a 40cm-deep seedbed with vertical wooden boards inside the greenhouse, lay plastic sheets on the bottom, punch out round holes with a radius of 1 cm at intervals of 10 cm, and distribute them evenly. Regions, respectively perfuse the mixed matrix made in step 1), ea...

Embodiment 2

[0031]In mid-May 2018, Tianjiahe Community, Wangzhuang Village, Biyan Town, Longxi County, Dingxi City, Gansu Province chose a flat land as a seedling test base.

[0032] 1) Making seedbeds: Build a 40cm-deep seedbed with bricks inside the greenhouse, lay plastic sheets underneath, and drill circular holes with a radius of 1cm every 10cm, evenly distributed. The nursery pond was perfused with a mixture matrix of 2 mm vermiculite, 4 mm desulfurized cinder and astragalus waste particles (volume ratio 5:1:4), and the perfusion depth was 40 cm.

[0033] 2) Preparation of nutrient solution: The preparation method of the nutrient solution is as follows: add 0.5-0.8 grams of potassium nitrate, 0.0003-0.002 grams of boric acid powder, 0.5-0.8 grams of calcium nitrate, 0.0004-0.002 grams of manganese sulfate, and 0.2 grams of superphosphate in 1 liter of water. -0.9 grams, 0.0002-0.001 grams of zinc sulfate, 0.1-0.3 grams of magnesium sulfate, 0.0003-0.001 grams of copper sulfate, 0.1-...

Embodiment 3

[0039] In mid-June 2018, Tianjiahe Society, Wangzhuang Village, Biyan Town, Longxi County, Dingxi City, Gansu Province chose a flat land as a seedling test base.

[0040] 1) Making seedbeds: Build a 50cm-deep seedbed with bricks in the greenhouse, lay plastic sheets underneath, and punch out round holes with a radius of 1 cm every 10 cm, and distribute them evenly. The nursery pool was perfused with a mixture matrix of 4 mm vermiculite, 2 mm desulfurized cinder and astragalus waste particles (volume ratio 5:2:3), and the perfusion depth was 50 cm.

[0041] 2) Preparation of nutrient solution: The preparation method of the nutrient solution is as follows: add 0.5-0.8 grams of potassium nitrate, 0.0003-0.002 grams of boric acid powder, 0.5-0.8 grams of calcium nitrate, 0.0004-0.002 grams of manganese sulfate, and 0.2 grams of superphosphate in 1 liter of water. -0.9 grams, 0.0002-0.001 grams of zinc sulfate, 0.1-0.3 grams of magnesium sulfate, 0.0003-0.001 grams of copper sulfat...

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Abstract

The invention relates to a soilless green seedling raising method of rhubarb, which comprises the following steps: making a seedbed, sowing and raising seedlings, managing at the seedling stage, digging and transplanting seedlings, wherein the mixed substrate used in the seedbed is 2 mm of vermiculite and 4 mm of desulfurized cinder and astragalus waste granules, the preparation method of the astragalus waste granules is as follows: after the astragalus seedlings are harvested, the discarded leaves and stems of the astragalus seedlings are collected, dried continuously at about 60 degrees Celsius, and directly crushed after drying Sieve to keep the particles of about 2 mm for later use. The present invention effectively reduces the dead seedling rate of rhubarb soilless seedlings, is suitable for the growth of rhubarb seedlings, increases the growth period and has a high survival rate after transplanting and has high yield: adopting the technical scheme of the present invention to carry out rhubarb soilless seedling cultivation, the yield of robust rhubarb seedlings is obvious Because it is higher than other existing rhubarb seedling raising methods commonly used, the production efficiency is greatly improved, the cost is reduced, and strong support is provided for the large-scale development of the rhubarb industry.

Description

technical field [0001] The invention relates to the technical field of agricultural economic crop breeding, in particular to a soilless green seedling raising method of rhubarb. Background technique [0002] Rhubarb is a plant of the genus Rhubarb in the family Polygonaceae, mainly distributed in Shaanxi, southeastern Gansu, Qinghai, western Sichuan, northwestern Yunnan and eastern Tibet. The traditional Chinese medicine rhubarb has the effects of attacking stagnation, clearing damp-heat, purging fire, cooling blood, removing blood stasis, and detoxifying. [0003] With the development of society, the demand for rhubarb in the market continues to increase, and the price continues to soar. Therefore, the requirements for the quality and output of rhubarb seedlings are also increasing. However, there are many problems in the traditional method of raising seedlings with soil as rhubarb seedling substrate: 1) rhubarb seedlings have a high occupation rate of soil; 2) rhubarb see...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C1/00A01G31/00A01G24/15A01G24/10A01G24/22A01G7/06C05G1/00
CPCA01C1/00A01G7/06A01G31/00A01G24/10A01G24/15A01G24/22C05B1/02
Inventor 邵宝平邵和平苏东宾
Owner GANSU HEBO LONG PHARMA TECH CO LTD
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