Hydrogen, like a screw, is connected with various chemical structures in plants, and at the same time participates in important biochemical reactions such as photosynthesis and respiration in plants to maintain the acid-base balance in plant cells.
Oxygen is necessary for aerobic respiration, and the energy generated by plant respiration provides energy for plants to absorb nutrients. When the energy is sufficient, the amount of nutrients absorbed by plants increases obviously. Under anoxic conditions, the ability of roots to absorb nutrients decreases, and plants will be forced to breathe anaerobically. At this time, a large number of acidic metabolites are produced, which seriously harms plant health.
The demand of plants for hydrogen and oxygen is mainly realized by absorbing water. In most cases, the important role of hydrogen is also reflected by moisture.
Therefore, understanding the effect of water on plants is not only beneficial to the supplement of hydrogen and oxygen and the healthy growth of plants, but also beneficial to the scientific use of water and rational use of water resources.
There is an old saying: "Everything grows by the sun, and the rain and dew moisten the seedlings."
Water is an important part of plants, which directly participates in important metabolic processes in plants and is also a good medium for many biochemical reactions. It can maintain the natural posture of plants and provide water for cell division and elongation. At the same time, water is also a temperature regulator of plants, which can adjust the permeability of visible light and the living environment of plants.
Rice drought disaster
If the atmosphere and soil are dry, it will cause drought, which will destroy the physiological activities in plants and make the water in plants unbalanced. Lighter ones are likely to hinder plant growth, weaken disease resistance and reduce product quality. In severe cases, plants will wilt and die for a long time.
Similarly, too much water is harmful to plants! But the cause of this injury is not the water itself, but the secondary stress induced by too much water.
Vegetable waterlogging
The damage of excessive water to plants can be divided into wet damage and waterlogging damage. Wet damage refers to the damage to plants (xerophytes) when the soil moisture reaches saturation. Waterlogging refers to the damage caused by water accumulation on the ground and flooding of some or all crops. In low-lying and swamp areas, waterlogging often occurs after floods or rainstorms.
When there is too much water in the soil, it is easy to lead to soil hypoxia, which is not conducive to the activities of some beneficial aerobic microorganisms in the soil, but makes some anaerobic microorganisms active, which will affect the pH value of the soil and directly harm the plant roots. If the soil layer and water surface submerge the aboveground parts of plants, it will induce the stomata on leaves to close, which will seriously hinder the normal physiological functions of plants. Waterlogging is very harmful to crops, ranging from reducing production to death.