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Study on substrate of lettuce seedling in subtropical hydroponic culture
May 13,2024
The experiment was carried out on hydroponic lettuce seedlings by using three seedling substrates, namely phenolic foam, sponge and mixed substrate, to explore the influence of different substrates on the seedling emergence and biological yield of lettuce seedlings.。 The results showed that the effects of different substrates were significantly different: At the seedling stage, The emergence rate ...
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Effects of calcium on photosynthetic characteristics, yield and quality of celery in hydro culture
Jun 07,2024
Celery is an annual or perennial herb, rich in vitamins, minerals, flavonoids and volatile oil compounds, is one of the important edible and medicinal vegetables. In facility cultivation, the development of celery industry is restricted by diseases, lack of nutrients and high residue. Soilless cultivation can provide a good growing environment for crops, reduce the occurrence of pests and diseases...
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Analysis of common problems in the use of agricultural films
Jun 12,2024
1. Ageing Usually we do a hand tear test to determine whether the film has aged. In addition, we can test different places to see whether it is local aging or overall aging. The most common problem is that farmers use sulfur or halogen ( Cl, Br , etc.), which makes the UV stabilizer added to the film lose its effectiveness, thereby accelerating the aging of the film. When the fi...
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What is the difference between drain to waste system and recirculating system?
Jun 26,2024
Drain-to-Waste System: How It Works: Nutrient solution is delivered to the plants. Excess solution, which is not absorbed by the plants, drains away and is discarded (wasted). Fresh nutrient solution is prepared and supplied to the plants regularly. Advantages: Nutrient Consistency: Plants always receive a fresh supply of nutrients, ensuring optimal growth conditions. Simplicity: These systems are...
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light control greenhouse
Sep 25,2024
A light deprivation greenhouse, also known as a blackout greenhouse or light control greenhouse, is a specialized structure used in agriculture to control the amount of light exposure that plants receive. It is primarily used for the cultivation of light-sensitive crops, such as certain flowers, vegetables, and herbs. The main purpose of a light deprivation greenhouse is to manipulate the photoper...
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