These "3 Types" of Shells Buried in Soil
In the process of plant maintenance, ingeniously using kitchen waste can not only achieve resource reuse but also provide natural nutrition for flowers. This article reveals practical techniques for converting three common shell materials into efficient organic fertilizers through scientific treatment, making your potted plants' roots strong and flower output doubled.
Eggshell: Calcium 强化剂 (Enhancer)
Double Effect Analysis
Eggshells contain 90% calcium carbonate and various trace elements, which can adjust the soil's pH balance and enhance cell wall development. Experimental measurements show that every 100g of treated eggshell powder can provide a slow-release calcium source for plants for three months.
Professional Treatment Process
1. Boil for 10 minutes to remove the inner membrane. 2. Bake at 150℃ for 15 minutes to sterilize. 3. Grind to 2-3mm particles and mix with the substrate at a 1:10 ratio, which can effectively prevent calcium deficiency yellow leaves in plants like roses and gardenias.
Peanut Shell: Breathable Modifier
Substrate Improvement Scheme
These "3 Types" of Shells Buried in Soil
Untreated peanut shells, after microbial decomposition, can produce humic acid and elements like nitrogen, phosphorus, and potassium. It is recommended to use composting treatment: mix crushed shell material with EM agents at a 5:1 ratio, maintain 60% humidity and ferment for 30 days to make a rich organic育苗 substrate.
Layered Application Techniques
Layering 2cm of fermented peanut shells at the bottom of the pots of plants like orchids and clivia can enhance drainage and prevent root rot. Combined with monthly top-dressing of fermented liquid (diluted 1:50), it can extend the flowering period by 40%.
Seafood Shell: Phosphorus Reserve
Nutrition Transformation Principle
Shrimp and crab shells are rich in chitin and calcium phosphate, and the chitosan formed after treatment can activate plant stress resistance genes. It is recommended to use a low-temperature baking method: wash the shells, bake at 120℃ for 2 hours, then grind and mix at a 3% ratio into soil for flowering plants.
Flowering Management Application
For flowering plants like bougainvillea and longevity flowers during the bud formation stage, using seafood shell fertilizer as top-dressing (15g/month per pot), combined with light control treatment, can increase the number of flower buds by 60%. Note that it needs to be pre-soaked in a citric acid solution to neutralize alkalinity.
By systematically using the three types of shell materials, a complete plant nutrition supply system can be constructed: eggshells provide a basic calcium source, peanut shells improve the rhizosphere environment, and seafood shells strengthen reproductive development. It is recommended to use EM agents to accelerate decomposition, regularly test the soil EC value (suitable range 1.2-2.0mS/cm), and pay attention to the proportion adjustment during different plant growth stages. Practice shows that this method can increase the flowering output of household potted plants by an average of 75%, achieving truly zero-cost and efficient maintenance.