Planting techniques of asparagus in greenhouse
Planting asparagus in greenhouse needs to master the selection of varieties, sowing and breeding, planting, field management, fertilizer and water management, harvesting and other work.
Planting techniques of asparagus in greenhouse
(1) selection of suitable varieties
Choose Thai water spinach or Tuan big-leaf water spinach with high quality and high yield.
(2) sowing and raising seedlings
In the first and middle of February, seedlings were raised in electric hotbed with 30 kg per mu of seedling bed, about 30 days after sowing, when the seedling height was 13-20 cm, the seedlings could be put on the market or planted. The area ratio of seedbed to planting field is 1: 15: 200.
(3) colonization
In early March, the cold tail and warm head were planted in the greenhouse in the morning, with a row spacing of 6.5 cm, 5 plants per hole, and watering in time after planting.
(4) Field management
1. Greenhouse management
Before planting live trees, the greenhouse should be closed tightly, the seedlings can be gradually ventilated and ventilated, but pay attention to heat preservation at night, ventilation can be gradually strengthened in late April, the greenhouse film should be opened in early May and cultivated in the open field.
2. Fertilizer and water management
Water spinach has a great demand for fertilizer and water, so it is necessary to keep the soil moist. The fertilizer is mainly composed of thin human feces and urine after topdressing for 1 or 2 times each time.
3. Spraying hormone
In order to make the stems and leaves of water spinach grow rapidly and appear on the market earlier, 50ppm gibberellin could be sprayed on the leaves with an interval of 20 days.
(5) harvesting
1. One-time harvest
When the height of the seedlings in the seedling shed is 18cm to 21cm, the seedlings are listed in combination with fixed seedlings. The seedlings left behind can be harvested and listed many times.
2. Planting in the greenhouse
Many times of harvest on the market, leaving the base 2-3 picking, in order to promote the germination of more shoots and increase the yield.
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What kind of fruit can be grown in greenhouse
The greenhouse can grow watermelon, cantaloupe, hard-skinned melon, cucumber, tomato, cherry tomato, lettuce, nectarine, apricot, grape and other fruits. Because of the high temperature in the greenhouse, it is generally suitable for the cultivation of out-of-season fruits. Key points for growing fruits in greenhouse 1. Promoting cultivation
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Planting techniques of balsam pear in greenhouse
Planting balsam pear in the greenhouse first needs to select suitable varieties, and then cultivate seedlings and arrange planting. Planting is usually carried out around February every year, and management can be carried out after the true leaves grow. The management focuses on watering and fertilization, checking diseases and insect pests and removing the field.
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