Soil management method for safe production of rice in rice field seriously polluted by Cd and application of method
A soil management and safe production technology, applied in the field of polluted farmland treatment, can solve the problems of price drop, heavy metal Cd pollution, aggravation, etc., to achieve the effect of ensuring production and reducing Cd content
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0029] A soil management method for the safe production of rice in paddy fields heavily polluted by Cd, which comprises the following steps:
[0030] Soil passivation treatment:
[0031] Take the 0-20cm polluted farmland soil of the land to be managed, and determine the pollution characteristics of heavy metal Cd in the farmland soil according to the soil pH value, total Cd and effective Cd content, and divide according to the pollution level of "Soil Environmental Quality Standard" (GB 15618-1995) If the soil total Cd exceeds 1.0mg·kg -1 as "severe" pollution;
[0032] According to soil pH, determine the application amount of passivation material in polluted farmland: in acidic soil, the preferred passivation material is jade powder, and the dosage is 2.25kg m -2 (about 1.0% of soil weight); neutral soil, the preferred passivation material is jade powder or fly ash, the dosage is 2.25kg m -2 (about 1.0% of soil weight).
[0033] Specifically, the jade powder was purchased...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com