Many farmers are used to uprooting straw when harvesting legumes. In fact, this method of harvesting is very unscientific and will waste a lot of organic nitrogen fertilizer. It is well known that legume crops are nitrogen-fixing crops, and rhizobium at the roots has the effect of immobilizing free nitrogen from the air. According to the measurement, one mu of legume crop can fix 7.5-10 kg of nitrogen from the air, which is equivalent to 35-50 kg of ammonium sulfate. Except for the plant itself, the rest is stored in its nodules. If it is uprooted at the time of harvest, it will take away the nodules that store nitrogen. Therefore, farmers' friends should use a sickle to cut when harvesting legumes instead of uprooting them. Vitamins are a type of trace organic substances that humans and animals must obtain from food in order to maintain normal physiological functions. They play an important role in human growth, metabolism and development. Vitamins do not participate in the formation of human cells in the body, nor do they provide energy for the human body. Vitamins are a class of organic compounds necessary for maintaining good health.
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Harvest beans should not be rooted