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Preparation method of nutrient solution for culturing nutrient-deficient wheat seedling

A preparation method and technology of nutrient solution, applied in fertilizer mixture, fertilization device, application and other directions, to achieve the effect of improving yield and quality

Active Publication Date: 2011-07-20
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the research on nutrient deficiency at seedling stage of wheat, a certain nutrient is intentionally removed to achieve true nutrient deficiency in plants, and the method of guiding production as a control standard has not been reported so far.

Method used

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  • Preparation method of nutrient solution for culturing nutrient-deficient wheat seedling
  • Preparation method of nutrient solution for culturing nutrient-deficient wheat seedling

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Embodiment Construction

[0008] Technical scheme of the present invention is as follows:

[0009] A method for preparing a nutrient solution for cultivating nutrient-deficient wheat seedlings, the steps are as follows:

[0010] (1) Determine the overall proportioning of elements in the wheat seedling stage cultivation full nutrient solution, the mol ratio of nutrient elements is as follows:

[0011] NO 3 - : NH 4 + :H 2 PO 4 - : K + : Ca 2+ :Mg 2+ : SO 4 2- : Cu 2+ : Fe 2+ :Mn 2+ : Zn 2+ :H 3 BO 3 :Mo 7 o 24 6- :Cl - =(3.5-5):2:(0.5-1):(2.5-4.5):(1-2):(0.25-0.5):(1.78-2):0.003:0.025:0.003:0.002:0.01:0.0001 : 0.016;

[0012] (2) On the basis of the overall ratio of elements in the above-mentioned complete nutrient solution, one nutrient element is subtracted, and the ratio of other nutrient elements remains unchanged, so as to obtain a nutrient solution deficient in wheat seedlings.

[0013] Using the nutrient deficiency nutrient solution for continuous culture, the wheat seedli...

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Abstract

The invention relates to a preparation method of a nutrient solution for culturing a nutrient-deficient wheat seedling. The nutrient-deficient nutrient solution for culturing at a wheat seedling stage is prepared from the following nutrition elements of a total nutrient solution, NO<3->, NH<4+>, H2PO<4->, K<+>, Ca<2+>, Mg<2+>, SO4<2->, Cu<2+>, Fe<2+>, Mn<2+>, Zn<2+>, H3BO3, Mo7O24<6-> and Cl<-> in the molar ratio of (3.5-5):2:(0.5-1):(2.5-4.5):(1-2):(0.25-0.5):(1.78-2):0.003:0.025:0.003:0.002:0.01:0.0001:0.016, wherein when one of the nutrition elements is omitted, the molar ratio of other nutrition elements is kept unchanged. Judgment on soil nutrient deficiency in a wheat seedling growing process is guided by taking the nutrient-deficient wheat seedling cultured by using the obtained nutrient-deficient nutrient solution as a comparison standard, a fertilizer is effectively supplemented and scientific fertilizer application is performed, so that the yield and quality of wheat are enhanced.

Description

technical field [0001] The invention relates to a nutrient solution formula for soilless cultivation plants, in particular to a preparation method of a nutrient solution for cultivating nutrient-deficient wheat seedlings, and belongs to the technical field of nutrient-deficiency judgment and guiding scientific fertilization at the wheat seedling stage. Background technique [0002] Wheat is one of the three major food crops in China, and it plays an extremely important role in ensuring my country's food security and maintaining the national economy and people's livelihood. Due to weather changes, soil conditions, etc., the growth and development of wheat will be affected by various external conditions, and the growth period of wheat from sowing to harvesting is relatively long, accounting for more than 2 / 3 of the first year. In the process, the probability of being affected by various external factors is much higher than that of other crops. As climate change cannot be cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
Inventor 谭德水刘兆辉江丽华张骞卢绪松李国红
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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