Some chemical properties of soils in the communal irrigation project of San Roque, Lupao, Nueva Ecija [Philippines]
1984
Manat, C.S.
Chemical analysis of the different soil samples showed considerable amount of organic matter and potassium. There was sufficient amount of calcium and magnesium but low in phosphorus content. Soil pH values, however, were still tolerable and recommendable for most crops. Correlation analysis between pH and phosphorus, potassium, calcium and magnesium showed no significant relationship while correlation analysis between pH, organic matter and nitrogen showed significant relationship.
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