The Excessive Use of Chemical Fertilizers & Dynamic Soil pH on Agricultural Land: The GIS-Based Inverse Distance Weighting (IDW)

• Authors: M. Fathima Jisna , M. H. F. Nuskiya , A. L. Iyoob
• Languages of publication: EN

Abstracts

EN

Chemical fertilizer use is highly increasing in farming activity, and the process has a significant impact on soil quality and pH which is the measurement of the acidity or alkalinity. Therefore, soil pH is the main variable because it regulates plant nutrition availability by controlling the chemical forms of various nutrients in agricultural activity. This research aims to find out the excessive use of chemical fertilizers & dynamic soil pH on agricultural land. The primary data had collected by using questionnaires, interviews, Focus Group Discussion (FGD) and soil testing. For the soil testing experiment, simple random sampling method was used to collect the sample in 11 agricultural continents using GPS technology to identify the land location and 22 soil samples were collected based on pre and post applied chemical fertilizer stage. In order to pH value were tested from the collected soil samples. Accordingly, the data were analyzed by ArcGIS 10.3 using the IDW technique. Therefore, the results find out the condition of soil quality during the pre-chemical fertilization, 9% of the land found to be slightly acidic, 27% of the land with neutral soil structure and 15% of the land with salinity soil structure. During the post-chemical fertilization, 9% of the land was found to be moderately acidic, 41% of the soil was found to be strongly acidic, 32% of the soil highly acidic and 18% of the land be moderately pH. The result of the study shown, chemical fertilizers use highly impact on soil quality and agricultural land productivity.

Keywords

EN

agricultural land; chemical Fertilizer; excessive use; productivity; soil pH

Discipline

• AGRICULTURE: AGRICULTURE

• Publisher: Scientific Publishing House „DARWIN”
• Journal: World News of Natural Sciences
• Year: 2021
• Volume: 39
• Pages: 113-129

Contributors

author

M. Fathima Jisna

• Department of Geography, Faculty of Arts and Culture, South Eastern University of Sri Lanka, Oluvil, Sri Lanka

author

M. H. F. Nuskiya

• Department of Geography, Faculty of Arts and Culture, South Eastern University of Sri Lanka, Oluvil, Sri Lanka

author

A. L. Iyoob

• Land Use Policy Planning Department, District Secretariat, Ampara, Sri Lanka

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• Document Type: article