citrus-greening

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Compost and rootstock effects on fibrous root physiology and bacterial community composition in young citrus trees under endemic Huanglongbing.

PubMed · 2026-06-16

Adding compost to citrus groves improved soil health and root activity, but couldn't overcome the devastating effects of citrus greening disease — the rootstock the tree was grafted onto mattered far more for actual fruit production.

Compost improved soil organic matter, pH, nutrients, and moisture, and increased fibrous root respiration and root length — real belowground gains.

Despite measurable root and soil improvements, compost had no effect on tree size or fruit productivity under citrus greening disease.

Rootstock selection, not compost application, was the primary driver of tree growth and yield among the four rootstocks tested.

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Citrus eco Valencia sweet orange

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