Evaluation of Soil Nutrient Content and Fertility in Main Dry Farming Regions of Laos

Shuyi Liu, Yuyi Huang, Guifen Chen, Yancheng Meng, Bin Liu, Zhong Liu, Yanfei Huang, Liping Xie, Qizhan Tang and Moryang Chuayeng

Asian Agricultural Research, 2022, vol. 14, issue 03

Abstract: [Objectives] To evaluate the status of soil nutrient and fertility in main dry farming regions of Laos, and to explore differences in soil nutrient content between regions and crop types. [Methods] By collecting 57 soil samples in the 0-20 cm layer of the main dryland in southern and northern provinces of Laos. Soil pH, organic matter, total nitrogen, available nitrogen, available phosphorus, available potassium, exchangeable calcium, exchangeable magnesium and available zinc content were analyzed. [Results] The soil in the main dry farming regions of Laos was acidic, the overall fertility level was good, and the exchangeable calcium and magnesium contents were low. There were differences in soil nutrient content in the dry farming regions of southern and northern Laos. Drylands where cassava and maize were planted had higher fertility. [Conclusions] It is suggested to apply lime or alkaline fertilizer in the dry land with acid soil to increase soil pH and increase the supply of soil calcium and magnesium. Organic fertilizer should be applied to improve soil water retention capacity, and it is necessary to pay attention to the fertilization ratio of macroelements to balance fertilization.

Keywords: Agribusiness (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/330024/files/6.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:asagre:330024

DOI: 10.22004/ag.econ.330024

Access Statistics for this article

More articles in Asian Agricultural Research from USA-China Science and Culture Media Corporation
Bibliographic data for series maintained by AgEcon Search ().