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Sulfate or sulfite light rare earth plant growth regulator and the method for preparing the same

A plant growth regulator, sulfurous acid technology, applied in the directions of plant growth regulators, plant growth regulators, botanical equipment and methods, etc., can solve problems affecting food safety, etc., to improve safety, reduce dosage, and make breakthroughs Effects of Safety and Quality Barriers

Inactive Publication Date: 2007-09-19
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn affects food safety and even the export of agricultural products

Method used

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  • Sulfate or sulfite light rare earth plant growth regulator and the method for preparing the same
  • Sulfate or sulfite light rare earth plant growth regulator and the method for preparing the same
  • Sulfate or sulfite light rare earth plant growth regulator and the method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Rare earth ions, inorganic ligands, and solvents in molar ratio: rare earth RE is 1mol La (provided by the trivalent nitrate or hydrochloride of La), inorganic ligand L is 3mol HSO 3 - (by HSO 3 - Provided by the sodium or potassium salt), the solvent S is 5-10mol CH 3 OH, reacted in a hypoxic solvent at 20-100°C for 12 hours, concentrated and recrystallized to obtain a solid powder, and its chemical structural formula is: La(HSO 3 ) 3 S N , wherein N=0~8 (the change of N between 0~8 has no significant effect on the properties of the product). The compound is used in horseradish, and the output increases by 20% to 40%; allyl (base) thiocyanate (C 3 h 5 CNS) content increased by 10% to 20%.

Embodiment 2

[0043] Rare earth ions, inorganic ligands, and solvents in molar ratio: rare earth RE is 1mol Ce (provided by the trivalent nitrate or hydrochloride of Ce), inorganic ligand L is the same as above, and solvent S is 5-10mol C 2 h 5 OH, reacted in a hypoxic solvent at 20-100°C for 12 hours, concentrated and recrystallized to obtain a solid powder, and its chemical structural formula is: Ce(HSO 3 ) 3 S N (N=0-8). When the compound is used in rice, the yield can be increased by 10% to 15%.

Embodiment 3

[0045] Rare earth ions, inorganic ligands, and solvents are prepared in molar ratios: rare earth RE is 1mol Pr, inorganic ligand L is the same as above, solvent S is 5-10mol DMSO, reacted in a low-oxygen solvent at 20-100°C for 12h, concentrated and recrystallized to obtain Solid powder, its chemical structure formula is respectively: Pr(HSO 3 ) 3 S N (N=0-8). When the compound is used in grapes, the yield increases by 20% to 27%, the soluble solid content increases by 3.0%, and the sugar content increases by 2.8%.

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Abstract

A sulfuric acid of sulfurous acid light rare earth plant growth regulator capable of improving yield and quality of root crop and tuber crop is composed of polynary rare earth complex, wherein the chemical structural formula of the polynary rare earth complex is RE(HSO3)3SN, N being equal to 0 to 8, or RE3(SO3)2SN, N being equal to 0 to 6, wherein, rare earth RE is a trivalent ion of the element optionally selected from La, Ce, Pr, and Nd; HAO3- or SO32- is inorganic ligand; and SN is solvent selected from H2O, CH3OH, C2H5OH, or DMSO. The plant growth regulator is a RE-H-L-S polynary complex, which can be prepared in a short reaction period by simple method. By using the regulator, the growth of the root crop and tuber crop can be promoted, the absorption to organic and inorganic nutrient and the content of chlorophyll can be improved, photorespiration can be inhibited, and the photosynthesis can be improved, thereby improving the yield by 15% to 45% and quality by 1 to 2 levels.

Description

technical field [0001] The invention relates to a plant growth regulator, in particular to a sulfuric acid or sulfurous acid light rare earth plant growth regulator capable of improving the yield and quality of root and tuber plants, and a preparation method of the plant growth regulator. Background technique [0002] The agricultural use of rare earths was pioneered by Chinese scientists and is a scientific achievement with independent intellectual property rights. China's first generation of rare earth agricultural researchers completed the practical test of rare earth dispersion; China's "Sixth Five-Year Plan" period of interdisciplinary research successfully resolved the use of rare earth technology in agriculture, and its related toxicology and hygiene, Plant physiology, soil science, production technology and product standards of rare earth agricultural products have been studied. During China's "Seventh Five-Year Plan" period, the application technology of rare earth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/02A01P21/00A01N25/30
Inventor 周青黄晓华郭绍芬
Owner NANJING NORMAL UNIVERSITY
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