1. Electro-fertilizer: Scientists observed that the greater the potential difference between the potential in the crop and the atmosphere, the stronger the photosynthesis of the crop. The scientists soaked the seeds of watermelon in a dilute hydrochloric acid solution of 75 volts. As a result, the seeds produced watermelons with a 4% increase in sugar content and a 10% increase in yield. 2. Sound fat: Sounds of different frequencies have different stimulatory effects on crops. The gentle, beautiful melody can regulate the metabolism of crops and promote the growth of crops. Foreign scientists used the method of listening to music for crops and actually cultivated 2.5 kilograms of radish, volleyball large sweet potatoes, and small sun umbrellas. A French scientist put a headset on the tomato and let it listen to light music for 3 hours a day. The result swelled to 2 kilograms. 3, wind fat: In the central plains of Arizona, sunny, natural wind resources are very rich. The staff installed a number of air pumps on some crop lands. They told visitors: “This is to fertilize crops.†Those gas pumps that blow out are gases containing high concentrations of carbon dioxide, which is one of the basic nutrients of crops. Photosynthesis absorbs carbon dioxide, produces sugar, carbohydrates and other organics and is used by itself. 4. Photofertility: Scientists have found that using light can promote the increase of crop yields. Such as using red light to irradiate tomatoes and cucumbers, can make them mature one month in advance, increase production by 2 to 3 times; use blue light to crops, its protein content increases significantly; use red and yellow light to illuminate carrots, can accelerate its growth, irradiation Soybeans can shorten soybean maturity by 20 days and increase protein content by 2%. 5. Magnetic Fertilizer: Scientists have discovered that if a magnetic field with a certain intensity is added to a crop, it will also promote its growth. They treated the irrigation water with a magnetic field of 3000 Gauss and then irrigated it, and the crops obtained high yields. If the cinder is finely grounded and then applied to the field after magnetic treatment, magnetic fertilizer can also accelerate crop growth and increase yield.
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