Manure-based fertilizers are ideal alternatives to conventional varieties, according to a study

(Natural News) A seven-year-long study conducted by Spanish researchers in a farm under the Mediterranean sun has concluded its comparison of natural and synthetic fertilizers. The researchers reported that manure-based fertilizer greatly improved the crop yield, both on its own and when added to chemical fertilizer. The goal of the Universitat de Lleida (UDL) research…

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