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Nano protective agent for improving stress resistance of crops and preparation method thereof

A protective agent and stress resistance technology, applied in the field of nano protective agent for improving crop stress resistance and its preparation field, can solve the problems of physiological race variation of pathogens, loss of resistance of crop varieties, environmental non-point source pollution, etc. resistance, improved cold resistance properties, improved nano-performance effects

Active Publication Date: 2020-02-28
浙江中环农业开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Crops are often attacked by various diseases and insect pests, such as wheat scab, powdery mildew, rice blast, bacterial blight, etc. These diseases are mainly controlled by spraying chemical pesticides in production, which not only brings environmental non-point source pollution At the same time, the variation of the physiological race of the pathogen also makes the high-efficiency pesticides ineffective and the crop varieties with high resistance lose their resistance

Method used

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  • Nano protective agent for improving stress resistance of crops and preparation method thereof
  • Nano protective agent for improving stress resistance of crops and preparation method thereof
  • Nano protective agent for improving stress resistance of crops and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Preparation and anti-powder mildew effect of nano protective agent

[0030] 1.1. Diatomite and attapulgite (100-200 mesh, purchased from Mingguang Guoxing Attapulgite Co., Ltd.) were subjected to intermittent irradiation treatment modification with low-energy ion beam (10-30keV, 1-1000kGy), treatment 10 minutes, stop for 5 minutes, and the total effective irradiation time is 20 minutes to obtain modified diatomite and attapulgite.

[0031] 1.2. Mix the modified diatomite and attapulgite in water with a mass ratio of 4:1. After drying, a porous nanocomposite material is obtained, which is used as the carrier of the nanoprotective agent.

[0032] 1.3. Mix melatonin (purchased from Sigma Reagent Co., Ltd.), karrikins (purchased from Sigma Reagent Co., Ltd.) and trehalose powder (purchased from Bioengineering (Shanghai) Co., Ltd.) and the nanocomposite material obtained in step 1.2 in water thoroughly, An aqueous solution of nanoprotective agent was prepared, wh...

Embodiment 2

[0035] Example 2: Preparation of nanoprotective agent and characteristics of drought resistance, cold resistance and salt resistance and powdery mildew resistance

[0036] 2.1. Preparation of nanoprotective agent

[0037] 2.1.1. Intermittently irradiate diatomite and attapulgite (100-200 mesh) with low-energy ion beam (10-30keV, 1-1000kGy), treat for 8 minutes, stop for 3 minutes, the total effective The irradiation time reached 30 minutes to obtain modified diatomite and attapulgite.

[0038] 2.1.2. Mix the modified diatomite and attapulgite in water with a mass ratio of 4:1, and after drying, a porous nanocomposite material is obtained, which is used as the carrier of the nanoprotective agent.

[0039] 2.1.3 The melatonin, karrikins and trehalose powders are fully mixed in water with the nanocomposite obtained in step 2.1.2 to prepare a nanoprotective agent, wherein the content of the composite nanomaterial is 1.2wt%, and the final concentration of melatonin is 1.2 wt%. Th...

Embodiment 3

[0056] Example 3: Preparation of nanoprotective agent and anti-cadmium properties

[0057] 3.1. Use low-energy ion beam (10-30keV, 1-1000kGy) to irradiate diatomite and attapulgite (100-200 mesh) intermittently, treat for 5 minutes, stop for 2 minutes, the total effective irradiation When the time reaches 40 minutes, modified diatomite and attapulgite are obtained.

[0058] 3.2. Mix the modified diatomite and attapulgite in water evenly at a mass ratio of 4:1, and after drying, a porous nanocomposite material is obtained, which is used as the carrier of the nanoprotective agent.

[0059] 3.3. Fully mix melatonin, karrikins and trehalose powder with the nanocomposite obtained in step 3.2 in water to prepare a nanoprotective agent, wherein the content of the composite nanomaterial is 2.5wt%, and the final concentration of melatonin is 200μM , the final concentration of karrikins was 10 nM, and the trehalose content was 0.1 wt%, where wt% was relative to the total weight of the ...

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Abstract

The invention discloses a nano protective agent for improving the stress resistance of crops, and belongs to the technical field of crop growth regulation and control. The provided nano protective agent comprises following components in percentage by the total weight of the nano protective agent: 0.5 to 2.5 wt.% of a nano composite material, 10 to 500 [mu]M of melatonin, 10 to 1000 [mu]M of karrikins, and 0.01 to 0.1 wt.% of trehalose. The provided nano protective agent can combine multiple beneficial substances that can improve the stress resistance of plants such as endogenous hormones, exogenous esters, biological protective agents, and the like. A nano material is taken as the carrier, based on the stress resistant mechanism of plants, the comprehensive stress resistance of crops is improved from a plurality of aspects, and technical support is provided for stabilizing the crop yield and improving the agricultural product quality.

Description

technical field [0001] The invention belongs to the technical field of plant growth regulation and control, and in particular relates to a nano-protective agent for improving crop stress resistance and a preparation method thereof. Background technique [0002] During the entire growth and development period of crops, they will encounter various environmental stresses - biotic and abiotic stresses, which will seriously affect the yield and quality of crops. The biotic stresses are mainly pests, weeds and viruses, and the abiotic stresses are mainly environmental factors such as drought and flood, low temperature, salinity, heavy metals and so on. [0003] Crops are often attacked by various pests and diseases, such as wheat scab, powdery mildew, rice blast, bacterial blight, etc. These diseases are mainly controlled by spraying chemical pesticides in production, which not only brings environmental non-point source pollution At the same time, the variation of the physiologic...

Claims

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Application Information

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IPC IPC(8): A01N25/08A01N43/90A01N43/16A01N43/38A01P21/00
CPCA01N25/08A01N43/90A01N43/16A01N43/38
Inventor 吴丽芳倪军黄胜威侯金艳
Owner 浙江中环农业开发有限公司