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Abstract ▼ AI-Helper

Seven granule type micronutrient mixes were manufactured by changing the chemical composition, then their effect on growth and nutrient uptake of marigold ‘Orange Boy’ in plug culture were investigated. Micronutrient mixes were ground to pass 0.5mm sieve and incorporated into peatmoss + vermiculite ...

Seven granule type micronutrient mixes were manufactured by changing the chemical composition, then their effect on growth and nutrient uptake of marigold ‘Orange Boy’ in plug culture were investigated. Micronutrient mixes were ground to pass 0.5mm sieve and incorporated into peatmoss + vermiculite (1:1, v/v) media. Soil solution pHs and ECs at 35 days after sowing were not different among treatments tested including -control and +control. But concentration of micronutrients in root media containing 7 micronutrient mixes developed in this research were higher than those of -control. But boron concentrations in root media containing sample 3-1 and 3-4 were higher than other treatments which resulted in an adverse effect on crop growth. Plant growth in root media containing micronutrient mixes developed in this research except sample 3-5 were higher than that of -control. Fresh weights in the treatments of 3-2, 3-3, 3-6 and 3-7 and dry weight in treatments of 3-3, 3-6 and 3-7 at 35 days after sowing were higher than those of other treatments tested. Tissue nitrogen contents were not significant different among treatments. Tissue content of micronutrients in treatments containing micrnutrient mixes developed in this research were higher than those of -control and +control. But tissue boron contents in treatments of 3-1 and 3-2 were too high to ensure good crop growth.

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