How long does it take for rice water to ferment when watering plants?
Household gardening enthusiasts are no strangers to using rice water to water plants. This natural nutrient-rich liquid, which is high in starch and trace elements, can effectively promote plant growth after scientific fermentation. However, in practice, the control of fermentation time and the treatment of odors are two major challenges that often困扰新手 gardeners. Mastering the correct method can provide nutrients for green plants without affecting the home environment.
Control of Rice Water Fermentation Cycle
Seasonal Influence on Fermentation Speed
In spring and summer, with temperatures above 25°C, rice water can complete fermentation in 7-10 days, with the liquid appearing stratified and transparent. In winter, it is necessary to extend the time to 20-30 days, or it can be shortened to 15 days if placed next to a heater. Observe the change of bubbles in the bottle: after the initial stage of violent bubbling ends, let it sit for 3 days before use.
Criteria for Judging Fermentation Status
A properly fermented rice water should have three characteristics: a sour smell replaces the rancid smell, the liquid is light tea-colored, and the sediment is stable and layered. Unfermented rice water has a high pH value, and direct use can cause soil compaction, damaging plants with fleshy roots like orchids and pothos.
Core Technology for Odor Removal During Fermentation
Natural Material Odor Removal Method
Add 50 grams of fresh orange peel or 10 grams of dried lemon slices to each liter of rice water. The D-limonene in citrus peel can effectively inhibit the production of sulfides. Mixing菠萝 peel with rice water at a 1:3 ratio, its protease can accelerate the decomposition process, shortening the fermentation cycle by 20%.
Physical Odor Control Techniques
Use a container with a one-way exhaust valve, opening the lid to vent for 10 minutes each day for the first 3 days. Hang activated carbon wrapped in gauze inside the bottle, with an adsorption rate of 70%. After fermentation is complete, let it sit for 24 hours, and pouring out the upper clear liquid can remove 90% of the remaining odor.
Scientific Application Standards for Fermented Liquid
For foliage plants, dilute at a ratio of 1:50, for flowering plants at 1:80, and for succulents at 1:100. Using EM bacteria liquid can enhance nutrient absorption, and the application frequency should be controlled at twice a month. Special attention should be given to acid-loving plants like camellias and azaleas, which need to be combined with ferrous sulfate to adjust the pH balance.
Properly fermented rice water can make the leaves of Clivia Miniata glossy and increase the number of flower buds in gardenias. The key is to grasp the fermentation timing and adjust the application method according to the characteristics of the plant, truly transforming kitchen waste into a safe and efficient nutrient source for plants.