When does balsam pear grow seedlings commonly? How many trees are planted on an acre of land? What are the technologies?

Balsam pear, also known as leprosy grape and cold melon, is native to East India and is widely cultivated in tropical to temperate regions of the world. It is widely cultivated in the north and south of China. So when do balsam pear usually grow seedlings? How many trees are planted on one mu of land? What are the technologies?

When does balsam pear usually grow seedlings?

In the northern region, it is generally appropriate to sow balsam pear from late March to early April. Balsam pear seeds should choose the new species of the year, the seeds should be full, the color should be dark yellow, and the seeds that are not full should be removed in time. Because the seed coat of balsam pear is thick and the texture is hard, it germinates slowly. In order to make balsam pear germinate as soon as possible, soak the seeds before sowing. When soaking the seeds, first pour 55 ℃-60 ℃ warm water into the bucket, then put the seeds into the bucket and keep stirring in the same direction. After about 10-15 minutes, when the water temperature drops to about 40 ℃, the stirring can be stopped. In this way, the bacteria on the seeds can be basically scalded to death, which is beneficial for the seeds to germinate and continue to soak for 6-8 hours, then the seeds can be fished out and the excess water can be removed to sow seeds.

How many balsam pear trees are planted in one mu of land?

The seedling age of balsam pear was transferred to field planting at the time of 5 leaves and 1 heart, and April 25 was the suitable planting period. Pick holes in the whole border, two rows in each border, the distance between rows is 1.2m, the distance between holes is 50cm, about 20g of compound fertilizer is applied in each hole, and 1600-1700 plants per mu.

What are the seedling raising techniques of balsam pear?

1. Soak the seeds with warm soup

The seed coat of balsam pear is thick and hard, so it is suitable to soak the seeds in warm water of 55 ℃ 66. After entering the water, the seeds should be stirred constantly. When the water temperature naturally drops to about 30 ℃, soak for another 24 hours.

2. Sprouting

Wrap the seeds with 100 ℃ hot water gauze, put them under 35 ℃ to accelerate germination, reduce them to 25 ℃ after two days, begin to germinate after 4 days, and sow when more than 70% of the seeds germinate.

3. Selection and preparation of bed soil.

Bed soil requires complete nutrition, loose texture, strong ability to retain water and fertilizer, good permeability, moderate acidity and alkalinity, free of pathogens and eggs. The general ratio is 6 points for fertile soil, 4 points for mature ring fertilizer, sifted after mixing, 3 kg of calcium per square meter, 10 kg of plant ash and 5 kg of compound fertilizer. Nitrogen fertilizer or dilute dung should not be used.

4. Disinfection of bed soil

Bed soil disinfection is an important link to reduce diseases and insect pests and ensure the healthy growth of balsam pear seedlings. Generally, 50% carbendazim and 50% dichlorvos can be added to each cubic meter of soil.

5. Sowing seeds

The frost area in Dali area of Yunnan Province is relatively short, in order to advance the listing time of balsam pear, Midu can be sown from January to February. When sowing, you should choose a sunny morning, sow on demand according to the row distance of 7 mi 8 cm, cover with soil and cover with plastic film.