Botany · Horticulture and Landscaping
In a commercial building where vertical gardens are proposed on multiple floors, the maintenance plan emphasizes uniform nutrient distribution, minimal runoff, and control of salt accumulation. Considering typical practices in vertical greening, which statement about fertigation and drainage design is most appropriate for ensuring plant health and structural safety over several years of operation?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1High-salt fertilizers are applied daily through flood irrigation to wash the wall and minimize algae growth, without any special drainage planning.
- 2Nutrients are supplied only as solid fertilizers sprinkled on foliage, and drainage holes are permanently sealed to conserve water.
- 3Fertigation is applied through a drip system with periodic flushing, and the panels are designed with controlled drainage outlets to prevent both stagnation and excessive water discharge.✓
- 4Fertigation is avoided completely and only plain water is supplied, so there is never any chance of salt build-up or leaching.
Correct answer
Fertigation is applied through a drip system with periodic flushing, and the panels are designed with controlled drainage outlets to prevent both stagnation and excessive water discharge.
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