Purchase magnets from your local home improvement store. Some student experiments have used a magnet planted in the soil to the side of the bean (seed). Conclusions seem to show that the south pole of the magnet closest to the seed works best and that the magnet improves plant growth. According to the Local Harvest website, look for magnets in the 1,500 to 2,500 gauss range. Do not attempt to use refrigerator magnets, as they are not the correct gauss or strength.
Plant the pole beans (seeds) in pots with a magnet to the side, or use two magnets if you want to experiment with different placements and poles. Plant other seeds without magnets if you choose to see if there are any variances in the magnetized pole beans.
Water the pole beans with ordinary tap water or water from the hose. Determine the effect of the magnet on the plants by comparing the magnet plants with the non-magnetized plants.
Purchase a magnetizer for a water pipe developed for specialized projects like plant growth and water magnetization. Companies such as Trentatron or Health Equip sell magnets for water softening or planting purposes.
Plant the pole beans (seeds) in large pots that can hold stakes; or plant them in the ground with a fence for vines. Using only water from the magnetizer, water them regularly. Experiments like the one on the Cactus Seeds website have shown that the seeds germinate faster with magnetized water.
Plant seeds from the same package or group in similar pots or soil, and use tap water for the control group. Compare the magnetized water plants with the tap water plants to draw your own conclusions.
Refer to the Mundi and Global Tectane Technology websites on the use of magnetized water for information as to how the magnetizer works to increase production with mono-polar magnetization of water. Magnetization works to lower surface tension and solubility, according to Global Tectane Technology.