Abstract
Soils that are used for rice cultivation comprise high concentrations of arsenic. Extremely use of agrochemicals or industrial residues containing arsenic in many areas and irrigation with groundwater containing As are major factors that contribute to arsenic concentration in soil. For the reduction of arsenic into rice through soils or its uptake, rice cultivation under aerobic conditions, intermittent flooding conditions, rather than in flooded soils are done. The use of phosphorous, iron, silicon, and different fertilizers has to be practiced carefully or should be reduced manually because their effects have shown negative results. Also, the use of arsenic 144hyperaccumulating plant species individually or with another plant type (e.g., Azolla, Chlorella, or Nannochloropsis species) helps to reduce arsenic in rice. To minimize arsenic uptake in rice from soils, bioavailability is considered. But factors like arsenic speciation under different conditions such as examining them for a long-time, in different field settings are required prior to the recommendation of methods in farming.
Original language | English |
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Title of host publication | Arsenic in Rice |
Subtitle of host publication | A Global Menace |
Publisher | Apple Academic Press |
Pages | 143-178 |
Number of pages | 36 |
ISBN (Electronic) | 9781000906813 |
ISBN (Print) | 9781774914663 |
DOIs | |
State | Published - 1 Jan 2024 |
Keywords
- agronomic measures
- arsenic
- bioavailability
- biochar
- heavy metal
- intermittent flooding
- rhizosphere aeration
- rice
- soil
ASJC Scopus subject areas
- General Engineering
- General Agricultural and Biological Sciences