greenhouse soilless cultivation
February 27, 2025
As a modern agricultural technology, soilless cultivation has received extensive attention and application in recent years due to its advantages of water saving, fertilizer saving, high yield, cleanliness and pollution-free.
As an important form of soilless cultivation, hydroponic lettuce is popular due to its high production efficiency and excellent quality.
To plant hydroponic lettuce, just put the grown seedlings into the holes of the cultivation board. Usually, it is best to plant seedlings with 2-3 true leaves, and no more than 4-5 true leaves. After planting, only nutrient solution management and temperature management are required, and no cultivation, weeding, pesticide spraying, etc. are required.
The optimum pH value for soilless cultivation lettuce is 6.0-6.9. So first we need to adjust the acidity, using phosphoric acid to adjust the acidity. Adding phosphoric acid as a fertilizer source into the formula is not only economical but also achieves the purpose of acidity adjustment. The pH value of soilless cultivation lettuce should be maintained in the optimum range throughout the growth period.
