A tutorial on planting cactus seeds

Preliminary preparation:

Sowing temperature: Cactus planting requires high temperatures, ranging from 35 to 45 ℃ during the day to 20 to 25 ℃ at night. The temperature difference between day and night should be between 15 and 20 ℃, and the planting time should be selected for the next two weeks with clear weather. (The germination temperature of each variety is different, please sow separately for later maintenance), but the germination time and germination rate will be affected, and can be sown at any time when the requirements are met.

Seeding container: Integrated seeding box (recommended) or disposable lunch box with bottom punching.

Sowing soil: Use professional sowing mixed soil. It is not recommended to add large particles, 1-2mm is appropriate. You can choose peat soil sold in the store, and do not use garden soil or large particle succulent planting soil to avoid difficulties in rooting small seedlings.

Fungicides: Disinfectant (Potassium permanganate) and Carbendazim.

Seeding steps:

Step 1：

Mix peat soil, coarse sand, coal slag and other granular soil in a ratio of 1:1:1, with peat soil accounting for 30% -40%.

Step 2:

After mixing the soil evenly, put the soil into a basin. The cactus has a longer root system, and try to use a deeper container for sowing. Fill the soil to an easy 3/4 position.

Step 3:

Use Potassium permanganate powder to slowly pour into the water used to soak the basin and sterilize the container, and mix evenly, and adjust the color to red.

Step 4:

The container box for sowing is soaked in Potassium permanganate disinfection solution, and the water level is close to the soil surface. The soaking time for the basin is about 2 hours.

Step 5:

After Potassium permanganate disinfection, the soil needs to stand for 12-24 hours. When sowing, soak the basin with cold boiled water, and sow after the soil is wet.

Step 6:

Cover the sowing container with a lid or cling film, wrap it in newspaper or cardboard box, and place it in direct sunlight to preserve its value. The cardboard box needs to be transparent in the north-south direction and blocked in the east-west direction.

Step 7:

After sprouting, some roots will be exposed to the soil, and small clips need to be used to dig pits nearby to bury the roots in the soil, or small particles of soil can be scattered around the roots. The seedlings gradually increase their exposure to light and keep the soil moist for 2 months.

----------------------------------------------------------------------------------------

Question and Answer

1. Why is it stuffy? How long will I stay confined?

During closed cultivation, the humidity is high, the seeds expand quickly, the embryo absorbs water quickly, and the germination speed is significantly accelerated.
Taking 100 seeds sown and 50% of the seeds germinated as an example. For example, if 10% of the seeds germinate in the early stage, please ventilate for 1 hour every day and continue to maintain a stuffy state. The germination rate has reached 40%, which is almost saturated for the overall germination rate of 50%. This can completely relieve the suffocation environment. As long as the soil in the pot is kept moist, it is important to pay attention to water retention after starting ventilation. The seeds are still sprouting gradually.

2. How long does the seed germinate?

Seed germination is influenced by many factors (such as species, temperature, water quality, soil medium, and environmental temperature), so even if the same seed is not suitable for the stripe family, it will still exhibit low germination rate or no germination. No one can predict this.

3. How to water after germination? How to bask in the sun?

Be sure to use a soaking basin and keep the soil surface moist (the soil humidity during germination can be used as a reference and should not be lower than this humidity). It is not recommended to water directly, as it will scratch the seeds into the soil.
The lighting time gradually increases and requires scattered light (i.e., light passing through the glass). It's best to have sunshine in the morning. When drying the seedlings, be sure to open the lid to prevent the seedlings from melting into water due to high temperature inside the box.

4. When can the seedlings be transplanted?

Transplanting can easily damage roots, so unless there are special circumstances (such as insect infestation, dense planting, etc.), it is strongly recommended to consider transplanting after six months.

5. What should I do if Xiao Miao is overgrown?

Use finer vermiculite or small particles to pile around the elongated pole of the young seedling to prevent it from breaking due to its length. After the completion of seedling support, astigmatism can gradually be exposed (best from 8-11 am and 15-17 pm, and then gradually increase the exposure time)

6. What should I do if I have mold and mycelium?

If mold is found, it should be removed directly, and then sprayed with Carbendazim solution (it is recommended to use it after germination for more than two months), soaked in the basin or coated with Carbendazim powder, and pay attention to opening the cover for ventilation (indoor fan can be used to blow, and attention should be paid to maintaining the temperature).

7. What is the situation when the seedlings gradually fall down and die after germination?

Reason 1: The pole is too long: after being too long, the pole is damaged and suitable for small seedlings to fall on the side, which can be solved by supporting seedlings.
Reason 2: Black fly larvae: The seedlings are lodging and rootless. It is recommended to use Huhua Shen to dilute in proportion before soaking in a basin or spraying.

8. Why can't I see the seeds when I receive the goods?

Crassulaceae seeds are very small. Please flick the seed bottle gently before opening the bottle cap to make all seeds fall to the bottom of the bottle, then open the seed bottle again to check whether there are seeds left in the bottle cap, and finally take out all seeds to avoid accidentally falling or missing seeds.