Traditional Culture Encyclopedia - Weather forecast - The role of silicon in plant growth
The role of silicon in plant growth
Silicon is necessary for the growth of some grass plants. Silicon deficiency will affect the reproductive ability of plants during the reproductive growth period.
1. Silicon is an important component of plants. Silicon is an important nutritional element in plants, and most plants contain silicon. Tests show that when 1,000 kilograms of rice are produced, the amount of silica absorbed by the aboveground part of the rice reaches 150 kilograms, exceeding the total nitrogen, phosphorus and potassium absorbed by the rice. From the ash of six crops: rice, wheat, barley, soybeans, lentils, and fennel, oxides of the nutritional elements silicon, phosphorus, potassium, calcium, magnesium, iron, and manganese account for about 80% of the ash, of which silicon oxide accounts for 14.2%. -61.4%.
2. Is the application of silicon fertilizer beneficial to improving the photosynthesis of crops?
After applying silicon fertilizer to crops, the epidermal cells of the crops can be siliceous, making the stems and leaves of the crops straight, reducing the Shade allows the leaves to photosynthesize. For example, after silicon is applied to rice, the leaf angle shrinks by 25.4 degrees, and canopy photosynthesis increases by more than 10%.
3. Silicon fertilizer can enhance the resistance of crops to pests and diseases and reduce the damage caused by pests and diseases
After crops absorb silicon, silicified cells are formed in the body, thickening the cell walls on the surface of stems and leaves. The cuticle increases, thereby improving insect and disease resistance, especially against rice blast, leaf spot, stem rot, Sclerotinia sclerotiorum, bacterial blight and stem borers, wheat powdery mildew, rust, wheat fly, cotton bollworm, etc. .
4. Silicon fertilizer can improve the resistance of crops to lodging
Because the stems of crops are straight, the ability to resist lodging is increased by about 80%.
5. Silicon fertilizer can enhance the ventilation of crops
The increased silicon content in crops will strengthen the rigidity of crop conduits and promote ventilation, which is beneficial to aquatic plants such as rice and reeds. Temperature crops are of great significance. It not only promotes the growth of crop roots, but also prevents root rot and premature aging. It plays an important role in preventing and treating root rot in rice.
6. Improve crop stress resistance
After applying silicon fertilizer, the silicified cells produced can effectively regulate the opening and closing of leaf stomata, tap water transpiration, and improve the drought resistance and resistance of crops. Dry hot wind and low temperature resistance.
7. Silicon fertilizer contains more calcium and magnesium
It also contains a certain amount of trace elements such as phosphorus, zinc, magnesium, boron, and iron, which has a compound nutritional effect on crops.
8. Silicon can reduce the fixation of phosphorus in the soil
Activate phosphorus in the soil and promote the movement of phosphorus in the crop body, thereby improving the seed setting rate.
9. Silicon fertilizer is a health-care fertilizer.
It can improve soil, correct soil acidity, increase soil salt base, promote the decomposition of organic fertilizers, and inhibit soil pathogens.
10. Silicon is a quality element
It can improve the quality of agricultural products and is beneficial to storage and transportation
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