When to plant perilla (a few months) how to plant perilla seeds

Perilla is a kind of excipient that we often eat, which is generally used for cooking or cooking soup. It can not only make it fresh, but also remove the fishy smell. In general, friends who often eat perilla at home will raise it on the balcony or plant some perilla in the courtyard and vegetable field to facilitate picking and eating. So we all know when it is better to sow perilla seeds?

When will perilla be planted (a few months)

Generally speaking, perilla is carried out in spring, in the south in mid-March and in the north in April, because the weather is not very warm at this time, so it should be covered with film after sowing.

How to plant perilla seeds

1. Seed treatment and germination

Perilla seeds belong to the type of deep dormancy and can not germinate completely until 4-5 months after seed collection. if out-of-season growth is to be carried out, low temperature and gibberellin treatment can effectively break dormancy. The newly harvested seeds were treated with 100 microliters / liter gibberellin and placed under low temperature 3 degrees Celsius and light for 5 days for 10 days, and then germinated under 15-20 degrees Celsius light for 12 days.

2. Sowing seeds

In the south of the Yangtze River, the method of sowing and raising seedlings in small arch shed in the middle of March is the best. The seed consumption is 3 kg per hectare. Prepare the seedling bed according to 8% / 10% of the planting area, and the seeding rate of the seedling bed is 10 / 14 g / m2. Before sowing, the nursery bed should be watered with sufficient bottom water, the seeds should be evenly sown on the bed surface, covered with a thin layer of soil where no seed particles can be seen, and then evenly sprinkle some straw to cover the plastic film, and then add a small arch shed to keep warm and moisture. after 7-10 days, the seedlings will germinate. Pay attention to timely removal of plastic film, timely seedlings, generally 3 times between seedlings, in order to achieve the uncrowded standard, the seedling distance is about 3 cm square. In order to prevent the seedlings from growing into tall seedlings, we should pay attention to timely ventilation and ventilation. The shed film can be removed in April to promote the sturdiness of the plant and enhance the adaptability to the external environment after planting.

Field management

During the production period, urea was applied for 7 times in time according to the growth situation. In the whole growing period, the soil is required to keep moist, which is conducive to the rapid growth of plants. The first stubble leaves should be removed 20-25 days after planting, and the old leaves below the fourth section should be removed completely. The leaves above the fifth section with a width of 12 cm are picked and pickled. The effective node can reach 20-23 nodes, and 40-46 leaves can be picked up to the export standard. Perilla has strong branching ability. The branches should be removed in time.

In management, special attention should be paid to timely forking. Because of the strong branching power of perilla, if the branches are not removed, it will not only consume nutrients, delay the growth of authentic leaves, but also reduce the total amount of leaves and reduce the yield. Forking can be carried out at the same time as picking leaves. For perilla which does not leave seed field, three pairs of leaves can be left to branch and pick the heart before the plant begins to grow inflorescence at the beginning of September, and these three pairs of leaves can also reach the standard of finished leaves.

Pest Control of Perilla frutescens

1. Red spider: it is easy to appear when the weather is dry and the humidity is high from June to August. Red spider adults are small, usually orange and sometimes yellow. The red spiders gathered on the back of the leaves to stab the juice, and the yellow-white spots appeared in the leaves at the beginning, and then the larger yellow-brown spots could be seen on the leaves. When the spots spread, the whole leaves turn yellow and the leaves fall off.

Prevention and control method: spray and kill with 2000 times of dimethoate emulsion as early as possible. However, it is required to stop spraying half a month before harvest to ensure that there is no residual poison on the medicinal materials.

2. Spodoptera litura: from July to September, the larvae endanger the growth of perilla, the leaves will be bitten into holes, and the mature larvae pupate on the plant as thin silk cocoons.

Control method: spray with 1000 times liquid of 90% crystal trichlorfon.

As mentioned above, I believe you have a certain understanding of perilla seed cultivation. Do you think perilla is easy to grow? In fact, perilla is not only of high edible value, but also has a certain medicinal value. It often has the effects of relieving cold, relieving cough and asthma, resolving phlegm and removing blood stasis.