Analysis of information sources in references of the Wikipedia article "Gran Chaco" in Slovenian language version.
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alluvial sandy soils have P (phosphorus) levels of up to 200–300 ppm
{{navedi novice}}: Vzdrževanje CS1: opuščena arhivska storitev (povezava)The Gran Chaco was one of the last frontiers in South America – but agricultural development, largely driven by soy, is gathering pace.
{{navedi novice}}: Vzdrževanje CS1: opuščena arhivska storitev (povezava)alluvial sandy soils have P (phosphorus) levels of up to 200–300 ppm