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Suspension hydroponic seedling raising method for flue-cured tobacco

A technology for tobacco seedlings and flue-cured tobacco, which is applied in the field of flue-cured tobacco seedling cultivation, can solve the problems of weak absorption function of tobacco seedlings, less root hairs, low seedling emergence rate, and low seedling growth rate in days of seedling formation, and achieves prevention of mutual transmission of diseases, high seedling growth rate, high seedling growth rate, etc. Beneficial for early birth and fast hair

Pending Publication Date: 2021-12-03
SHANDONG LINYI TOBACCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the technology of floating seedling cultivation is relatively advanced, which is conducive to the specialization and scale of tobacco seedling production, there are still many problems in the application process: the absorption function of the root system of tobacco seedlings in floating seedling cultivation is weak, and the root hairs are few, resulting in its emergence rate, Seedling days and seedling rate are relatively low, and it has relatively high requirements for intensive seedling cultivation substrate, special fertilizer for seedling cultivation, management technology, etc.

Method used

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  • Suspension hydroponic seedling raising method for flue-cured tobacco
  • Suspension hydroponic seedling raising method for flue-cured tobacco
  • Suspension hydroponic seedling raising method for flue-cured tobacco

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Sowing

[0035] 1.1 Seedling tray specifications. The material of the seedling tray is polyvinyl chloride, the seedling tray has 105 holes, and the holes are inverted Lingtai.

[0036] 1.2 Seedling substrate. Use the special substrate for seedling cultivation of Hongqiang Cooperative, and the substrate components are peat soil: perlite: vermiculite = 6:3:1.

[0037] 1.3 Sowing operation. Use the special machine for seedling cultivation of Hongqiang Cooperative to carry out operations such as matrix filling, pressing holes, sowing, covering soil, and water spraying. During specific operations, the matrix filling is uniform and tight, and the depth of pressing holes is uniformly 0.6cm (cone-shaped). Each Sow a tobacco seed in the hole to ensure that the seeding rate reaches 100%, and try to make the tobacco seed fall in the middle of the pressure hole. After the mechanical seeding section and the covering soil section, use light, breathable, and good water and ferti...

Embodiment 2

[0066] The comparative test of embodiment 2 floating seedling cultivation and suspended water cultivation seedling

[0067] 1. Operating process

[0068] 1. Cultivate seedlings in suspended water

[0069] According to the method as in Example 1, the seedlings cultivated by the method of cultivating seedlings in suspended water were obtained.

[0070] 2. Floating nursery

[0071] According to the method of conventional suspension seedling cultivation, the seedling tray used is made of polystyrene, and the specification is 160 holes / pan. The water and nutrient supply of the tobacco seedlings is mainly completed through the water in the seedling pond and the addition of water-soluble fertilizers in the seedling pond. Before sowing and sealing, keep the water depth of the seedling pond at 6-8cm. After the tobacco seedlings are sealed, raise the water level in the floating pond to float Pan and aisle level; fertilization time and concentration: the first time at the cotyledon st...

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Abstract

The invention discloses a suspension hydroponic seedling raising method for flue-cured tobacco. According to the method, seedling trays are placed on a suspension seedbed after sowing, large, medium and small seedlings are separately planted, management operations such as tobacco seed splitting, water management and nutrition supply are completed by utilizing an automatic spraying system, tobacco seedlings take root and grow in a substrate, and the tobacco seedlings independently grow and do not make contact. The tobacco seedlings planted by the planting method are developed in root system, the tray seedlings can reach 98% or above, the average stem girth of the tobacco seedlings is 2.2 cm, seedling control is facilitated, the comprehensive disease incidence rate in the field is within 6%, the field transplanting utilization rate of the tobacco seedlings reaches 100%, the transplanting survival rate reaches 98% or above, and the field uniformity reaches 98%.

Description

technical field [0001] The invention relates to a method for cultivating flue-cured tobacco seedlings suspended in water, and belongs to the technical field of flue-cured tobacco seedling cultivation. Background technique [0002] Seedling cultivation is the most important link in tobacco production, and it is also an extremely important key link. The quality of tobacco seedlings directly affects the effectiveness of tobacco leaf production. At present, my country’s flue-cured tobacco seedlings mainly include floating seedlings, tray seedlings, wet seedlings, and sand seedlings. Among them, floating seedlings and tray seedlings are widely used, and floating seedlings account for about 85%, especially in Guizhou and Yunnan. widely used in the area. Suspension seedling cultivation has basically become the mainstream method of seedling cultivation. [0003] Floating seedling cultivation refers to under the condition of greenhouse or plastic film coverage, using the formed expa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01G31/02A01G24/15A01G24/28
CPCA01G31/00A01G31/02A01G24/15A01G24/28Y02P60/21
Inventor 高昕金立权韩硕吴健王家民杜从伍李慧英种学法宗浩谭效磊
Owner SHANDONG LINYI TOBACCO
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