Organic plum cultivation in the Mediterranean region: The medium-term effect of five different organic soil management practices on crop production and microbiological soil quality
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Compost annual addition seems to be beyond the optimal supply level at the site.

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Yields from biennial and annual compost treatments were similar.

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Compost led to higher soil humus content than green manure or biofertilizer.

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Compost led to better yields and soil quality than green manure or biofertilizers.

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At least 5 years must be considered to evaluate the effect of treatments on yield.

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