A method for simultaneously improving crop nitrogen use efficiency and cadmium stress resistance

A technology of efficiency and capacity, applied in the field of simultaneously improving crop nitrogen use efficiency and cadmium stress resistance

Active Publication Date: 2019-12-27
HUNAN AGRICULTURAL UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are few studies on enhancing plant resistance and improving plant NUE under the condition of abiotic stress, especially heavy metal stress, and there is no method to coordinate the regulation of nutrition and the regulation of environmental abiotic stress.

Method used

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  • A method for simultaneously improving crop nitrogen use efficiency and cadmium stress resistance
  • A method for simultaneously improving crop nitrogen use efficiency and cadmium stress resistance
  • A method for simultaneously improving crop nitrogen use efficiency and cadmium stress resistance

Examples

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Embodiment

[0034] A method for simultaneously improving crop nitrogen use efficiency and cadmium stress resistance, taking rapeseed as an example, comprising the following steps:

[0035] (1) Soak rape seeds in sodium hypochlorite with a volume fraction of 20% for surface disinfection for 30-50 minutes, rinse with distilled water for 3-6 times, and then germinate in soil culture in a glass mesh room. The nutrient solution used is Hegeland's complete nutrition The nutrient solution is poured every 5 days, 100ml each time, the average day and night temperature in the glass mesh room is 29°C / 19°C, the natural humidity and light, the light intensity is 205-230Ue / (m 2 .s); the composition and content of Hegeland's complete nutrient solution include KNO 3 4~6mmol.L -1 、KH 2 PO 4 0.5~1.5mmol.L -1 , MgSO 4 6~8mmol.L -1 , Ca(NO 3 ) 2 4H 2 O 4~6mmol.L -1 、Fe-EDTA 2~4mmol.L -1 , B 0.4~0.6mg.L -1 , Mn 0.4~0.6mg.L -1 , Zn 0.04~0.06mg.L -1 , Cu 0.01~0.03mg.L -1 and Mo 0.005~0.015mg.L ...

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Abstract

The invention provides a method simultaneously improving crop nitrogen utilization efficiency and anti-cadmium stress ability; the method comprises the following steps: culturing seedlings, transplanting and culturing the seedlings, placing cultured crops into an environment non-biological cadmium stress simulation pool, spraying an inhibitor solution containing a chloride ion channel inhibitor on crop blades for inhibition treatment, and allowing the solution to fully wet all blades. Compared with the prior art, the method uses the chloride ion channel inhibitor to effectively inhibit the CLCa channel protein activity, thus changing NO3<-> distribution in cytoplasm and vacuole, further regulating energy distribution, and providing feasible adjusting means for improving plant NUE and anti-Cd stress ability in the same time.

Description

technical field [0001] The invention belongs to the field of plant planting, and in particular relates to a method for simultaneously improving nitrogen utilization efficiency and cadmium stress resistance of crops. Background technique [0002] In today's agricultural modernization and intensive production, industrial pollution and urban garbage have been transferred to the agricultural environment in large quantities, a large number of new agricultural chemicals have been used unreasonably in the medium and long term in agricultural production, and veterinary drug residues in livestock and poultry excreta have increased. We are facing a series of serious environmental pollution and ecological damage problems, and soil pollution is increasing year by year, among which the pollution of soil by heavy metal Cd is a major problem that needs to be solved in the world. [0003] In southern China, especially in southern Hunan, due to agricultural and industrial non-point source po...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A01G7/06A01N37/36A01P21/00
CPCA01G7/06A01N37/36
Inventor张振华廖琼宋海星肖和友卢胜杨勇陈卓彭瀑王帆
OwnerHUNAN AGRICULTURAL UNIV