Growth response of guava (Psidium guajava L.) to differential spacing and nutrient management under high density planting system in Kerala

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The study demonstrates improved vegetative parameters in guava under high density planting, suggesting optimal spacing and nutrient levels.

Optimal plant height was achieved at 2.0 m × 1.5 m spacing with full fertilizer (S4F6), showing significant growth.
Canopy spread in North-South direction peaked at 3.0 m × 3.0 m spacing with full fertilizer (S1F6) at 6 MAP, reinforcing spacing impact.
Interactive effects on branch girth and biomass were not significant at the tested intervals, indicating a complex relationship.
The least days to shoot emergence were noted at 3.0 m × 3.0 m spacing with full fertilizer (S1F6), highlighting early growth potential.

Karishma et al. (2025) studied this question.

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The study demonstrates improved vegetative parameters in guava under high density planting, suggesting optimal spacing and nutrient levels.