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@ Renke
2025-01-20 00:53:16
[Soil moisture](https://www.renkeer.com/measure-and-maintain-soil-moisture/) has an important impact on plant health, which directly affects plant growth, development and physiological activities. Here are several key aspects of how soil moisture affects plant health:
Affecting plant transpiration
Soil moisture directly affects plant transpiration. Transpiration is the process by which plants absorb water and evaporate it into the atmosphere through stoma. This process is not only the driving force for water absorption, but also involves the transportation of mineral nutrients. When the air humidity is too high, transpiration is weakened, and the ability of plants to transport mineral nutrients decreases, resulting in plant growth inhibition, reduced plant growth rate, increased leaf shedding, and reduced vitality of flowers or seeds.
Affecting plant photosynthesis
Changes in soil moisture can also affect plant photosynthesis. Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen. Excessive or low air humidity will cause stoma to close, plant stoma to close, CO2 cannot enter mesophyll cells, and photosynthesis slows down or even stops.
Affecting the occurrence of plant diseases
High humidity environments will directly contribute to the reproduction of pathogens and increase the probability of pests and diseases. For example, when humidity is too high, water condenses on the leaf surface, causing leaf cells to rupture, making the plant weak and vulnerable to disease.
Impact on soil microbial activity
Soil moisture also has a significant impact on the activity of soil microorganisms. Appropriate soil moisture can promote the activity of soil microorganisms, which play an important role in decomposing organic matter, converting nutrients, and inhibiting diseases. However, excessive humidity may lead to the activity of anaerobic microorganisms, which may have an adverse effect on plant roots.
Impact on soil structure and nutrient supply
Appropriate soil moisture helps maintain good soil structure, promotes water infiltration and root respiration, thereby improving soil microbial activity and nutrient absorption. However, excessive humidity may cause soil structure damage, affecting root growth and nutrient acquisition.
In summary, soil moisture has a multi-faceted impact on plant health. Maintaining appropriate soil moisture is essential to promote healthy plant growth. Too high or too low soil moisture may have a negative impact on plants, so farmers and gardening enthusiasts need to adjust soil moisture according to specific plant species and growth stages to ensure optimal growing conditions.