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	<title>phosphorus availability &#8211; BIOENGINEER.ORG</title>
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		<title>Carbon, Clay and Iron Oxides Hold the Keys to Phosphorus in Nigeria&#8217;s Farm Soils</title>
		<link>https://bioengineer.org/carbon-clay-and-iron-oxides-hold-the-keys-to-phosphorus-in-nigerias-farm-soils/</link>
		
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		<pubDate>Sun, 04 Oct 2026 13:21:41 +0000</pubDate>
				<category><![CDATA[Agriculture]]></category>
		<category><![CDATA[agroecological zones]]></category>
		<category><![CDATA[iron and aluminium oxides]]></category>
		<category><![CDATA[Mehlich-3]]></category>
		<category><![CDATA[Nigeria]]></category>
		<category><![CDATA[phosphorus availability]]></category>
		<category><![CDATA[Random Forest]]></category>
		<category><![CDATA[soil acidity]]></category>
		<category><![CDATA[soil fertility management]]></category>
		<category><![CDATA[soil organic carbon]]></category>
		<category><![CDATA[soil texture]]></category>
		<category><![CDATA[structural equation modelling]]></category>
		<category><![CDATA[tropical soils]]></category>
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					<description><![CDATA[A national-scale analysis of 554 Nigerian soil samples shows that soil organic carbon is the strongest predictor of plant-available phosphorus, with texture, iron and aluminium oxides, and acidity shaping how the nutrient is retained or released.]]></description>
		
		
		
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