Phosphorus flow analysis in maize cultivation: a case study in Thailand
Issued Date
2022-08-01
Resource Type
ISSN
09441344
eISSN
16147499
Scopus ID
2-s2.0-85127618982
Pubmed ID
35396679
Journal Title
Environmental Science and Pollution Research
Volume
29
Issue
39
Start Page
59835
End Page
59845
Rights Holder(s)
SCOPUS
Bibliographic Citation
Environmental Science and Pollution Research Vol.29 No.39 (2022) , 59835-59845
Suggested Citation
Yongsri A., Neamhom T., Polprasert S., Singhakant C., Patthanaissaranukool W. Phosphorus flow analysis in maize cultivation: a case study in Thailand. Environmental Science and Pollution Research Vol.29 No.39 (2022) , 59835-59845. 59845. doi:10.1007/s11356-022-20145-w Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/84694
Title
Phosphorus flow analysis in maize cultivation: a case study in Thailand
Author's Affiliation
Other Contributor(s)
Abstract
Phosphorus (P) is an essential element for plant cultivation, where the demand for agricultural products as food and feed are the main drivers of aggravated agricultural production systems. Maize is one of the main feedstocks for animal feed production in Thailand. Therefore, this study investigated P flows, using the conservation of mass-balanced concept to identify the major P flows in maize cultivation during rainy and dry seasons based on a survey of 131 plantation land plots. The result indicated that total amount of P input to maize fields during upland rainy and lowland dry season cultivation was determined as 27.76 and 34.96 kg P/ha, respectively, approximately 97% of which was in chemical fertilizers. P output in grain products accounted for 31.7 and 37.3% of the total P input or 32.9 and 38.0% of the applied fertilizer during maize cultivation in rainy and dry seasons, respectively. Agricultural soils were the main stock of P in maize cultivation systems. From the amount of applied P in rainy and dry seasons of maize cultivation, 43.9 and 41.3% remained in the soil, respectively, whereas 6.0 and 4.5% of those input during rainy and dry season were lost through runoff to the hydrosphere, respectively. This result indicated that seasonal and geographical factors may affect P flow pattern in maize cultivation. This revealed that P accumulation in soils and P loss occurring in rainy season were greater than those of dry season. Therefore, optimizing P flows through improved nutrient management should carefully consider helping reduce P loss during maize cultivation in Thailand.