The soil temperature of the vegetable garden directly affects the fertility and activity of the vegetable roots, and also affects the reproduction and composition of the microorganisms in the soil, and thus affects the absorption of nutrients by the vegetables. During my work, I constantly explored the relationship between soil temperature and fertilization. 1, the temperature can directly affect the diffusion of water molecules, ion exchange and other metabolic absorption, but also affect the solubility of fertilizer molecules, diffusion, etc., generally at low temperatures will reduce the root cell membrane permeability and cytoplasmic activity, reducing the absorption of nutrients Taking cucumbers and tomatoes for example, my summary experience at work is that their root hairs have the best protoplasmic fluidity at 30 degrees Celsius and almost half as low as 15 degrees Celsius. 2, the soil temperature also affects the metabolism of vegetables, affect the absorption and operation of nutrients, but also by cucumber, for example, cucumber nitrogen absorption, absorption at 20-25 degrees Celsius, and at 13 degrees Celsius and 35 degrees Celsius Will be suppressed. 3. The absorption of nutrient elements by roots is related to the nutrient form of the soil, and the nutrient form and temperature are related, for example: under low temperature conditions, the absorbable state of phosphorus is small, and the amount of phosphorus absorbed by crops is also inhibited. Only under the right temperature conditions, the concentration of soil solution after the increase of the amount of fertilizer is significantly increased, which is beneficial to the absorption of nutrients by crops. Therefore, try to avoid untargeted fertilization during the cold period. The above is my opinion at work and I share it with you.
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