Nutrient solution prescription of flue-cured tobacco fungus rooting floating raise seedling and its applying method

A technology of floating seedlings and mycorrhizalization, applied in the direction of botany equipment and methods, applications, soilless cultivation, etc., to achieve the effects of reducing fertilizer consumption, improving drought and disease resistance, and simple preparation process

Inactive Publication Date: 2008-07-09
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the contradiction between the mycorrhization of tobacco seedlings and the nutrient supply of tobacco seedlings, there must be a new nutrient solution formula and matching application methods, but there is no special nutrient solution formula and application suitable for cultivating mycorrhizal tobacco seedlings. method, and there are no relevant research reports at home and abroad

Method used

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Examples

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Embodiment

[0026] Prepare KH with a concentration of 1mol / L 2 PO 4 、KNO 3 , Ca(NO 3 ) 2 and MgSO 4 Each mother liquor is 5L; prepare 1L of trace element mother liquor according to the following ratio: 2.90g H 3 BO 3 , 1.86g MnCl 2 4H 2 O, 0.28g ZnSO 4 ·7H 2 O, 0.08gCuSO 4 ·5H 2 O and 0.02g H 2 MoO 4 ·H 2 Dissolve O in water respectively, add 50ml of concentrated sulfuric acid and mix well, add distilled water to dilute to 1L; prepare the concentration of 1mol / 1L of LEDTA-iron salt mother solution according to the following ratio: 5.57g FeSO 4 ·7H 2 O and 7.5g Na-EDTA reagent were dissolved and mixed to 1L respectively;

[0027] Take KH 2 PO 4 Mother liquor 80ml, KNO 3 Mother liquor 400ml, Ca(NO 3 ) 2 Mother liquor 400ml, MgSO 4 160ml of mother liquor, 500ml of trace element mother liquor, 500ml of EDTA-iron salt mother liquor, add water to 1000L, and then get the formula nutrient solution at the sowing stage;

[0028] Take KH 2 PO 4 Mother liquor 160ml, KNO 3 Mo...

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Abstract

The present invention relates to a nutrient fluid formula for the mycorhiza floating seedling raising of the cured tobacco and an application method of the formula, which comprises three formulas of the formula at the sowing stage, the formula 30 days after the emergence of the seedling and the formula 45 days after the emergence of the seedling. Using the present invention to inoculate the mycorrhizal fungi for the tobacco seedling, during the transplanting, the mycorrhizal infection rate of one tobacco seedling is more than or equal to 20 percent and the mycorrhizal rooting rate of the tobacco seedling is more than or equal to 90 percent. The application method of the nutrient fluid of the present invention not only favors the infection of the mycorhizal fungi for the tobacco seedling, but also favors the application period and application quantity of the nutrient fluid being applicable to the nutrition requirements of the tobacco seedling; moreover, the seedling bed is free from salt harm and disease harm. At the same time, the concentration of the nutrient fluid of the present invention is only 50 percent to 60 percent of the concentration of the prior nutrient fluid that is used in the present production; the total consumption quantity of the fertilizer is dropped by 40 percent to 50 percent, thereby saving the resource and reducing the environmental pollution.

Description

technical field [0001] The invention relates to the technical field of modern agricultural production and the field of fertilizers. It is mainly aimed at the nutrient solution formula and application method for producing mycorrhized tobacco seedlings in flue-cured tobacco floating seedling cultivation. Background technique [0002] Flue-cured tobacco is an important economic crop in our country and occupies an important position in our national economy. In 2006, the tobacco planting area was 15.72 million mu, and the tax revenue reached 290 billion yuan, ranking first in the single tax revenue of all industries in the country. In the production of flue-cured tobacco, cultivating strong seedlings is one of the important links in the production of flue-cured tobacco, and it is also an important measure to improve the yield and quality of flue-cured tobacco. At present, floating seedling cultivation is the main method of flue-cured tobacco seedling cultivation, accounting for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
Inventor 黄建国江龙袁玲
Owner SOUTHWEST UNIVERSITY
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