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Method for reducing cadmium accumulation in cyphomandra befacea through mixed planting of galinsoga parviflora grating offspring

A technology of tree tomato and Achyranthes bidentata, which is applied to the field of reducing cadmium accumulation in tree tomato by grafting offspring of hybrid Achyranthes chrysanthemum, can solve the problems of compound pollution on orchards, etc., and achieve good cadmium pollution, obvious reduction of cadmium content, and obvious effect Effect

Inactive Publication Date: 2018-07-13
SICHUAN AGRI UNIV
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Problems solved by technology

Although the heavy metal pollution of fruit trees is lighter than that of other field crops at present, with the rapid development of industry, the harm of compound pollution to orchards will become more and more obvious

Method used

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  • Method for reducing cadmium accumulation in cyphomandra befacea through mixed planting of galinsoga parviflora grating offspring
  • Method for reducing cadmium accumulation in cyphomandra befacea through mixed planting of galinsoga parviflora grating offspring
  • Method for reducing cadmium accumulation in cyphomandra befacea through mixed planting of galinsoga parviflora grating offspring

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Experimental program
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Embodiment

[0021] 1 Materials and methods

[0022] 1.1 Test soil

[0023] The soil for the test was taken from the farm in the new district of Ya’an Campus of Sichuan Agricultural University (30°23′N, 103°48′E). , total phosphorus is 0.31g / kg, total potassium is 15.22g / kg, alkaline hydrolysis nitrogen is 165.30mg / kg, available phosphorus is 5.87mg / kg, available potassium is 187.03mg / kg, cadmium content is 0.101mg / kg, The effective cadmium content is 0.021mg / kg.

[0024] After air-drying and crushing the soil, pass through a 5mm sieve, weigh 3.0kg and place them in plastic pots of 15cm×18cm (height×diameter) to analyze pure CdCl 2 2.5H 2 Add cadmium solution in the form of O so that the cadmium concentration in the pot is 10 mg / kg, and fully mix with the soil to maintain 80% of the field water holding capacity of the soil. After 4 weeks of natural balance, mix again for later use;

[0025] 1.2 Plant material cultivation

[0026] The collected Achyranthes chrysanthemum seeds (same pla...

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Abstract

The invention provides a method for reducing cadmium accumulation in cyphomandra befacea through mixed planting of galinsoga parviflora grafting offspring, and belongs to the technical field of plantheavy metal pollution repairing. The method is characterized by firstly grafting herba bidentis bipinnatae, serving as a stock with the galinsoga parviflora, serving as a scion, and then carrying outthe mixed planting on galinsoga parviflora grating offspring and the cyphomandra befacea, wherein a mixed planting ratio is 1 to 3. According to the method provided by the invention, the cadmium content in the cyphomandra befacea can be remarkably reduced, and the biomass of all parts of the cyphomandra befacea is remarkably increased; compared with the mixed planting of other hyperaccumulators, more efficient cadmium repairing capacity is expressed, and a best production effect can be achieved.

Description

technical field [0001] The invention belongs to the relevant technical field of plant hybridization technology for repairing heavy metal pollution, and in particular relates to a method for reducing cadmium accumulation in tree tomato by grafting offspring of hybrid hybrid plant species. Background technique [0002] Heavy metal pollution has spread to many parts of the world, causing serious losses to agricultural soil and crops in many countries and regions. As one of the most toxic heavy metal elements, cadmium is a non-essential element for plant growth, and its harm is extremely serious. my country's Cd polluted cultivated land reaches 1.3×10 4 hm 2 , involving 25 regions in 11 provinces and cities, far exceeding other heavy metal elements in soil. Cadmium is extremely harmful to plants and human health. At present, the control of cadmium-contaminated soil has attracted widespread attention at home and abroad, but there are big problems in the large-scale promotion a...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01G22/00A01G13/00B09C1/10
CPCA01G17/005A01G13/00B09C1/105
Inventor 林立金廖明安黄科文夏丹王进邓群仙吕秀兰
Owner SICHUAN AGRI UNIV
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