Complete Guide to Greenhouse Chive Cultivation Techniques and Policy Subsidies
When it comes to chives, everyone is familiar with them; they are a vegetable grown throughout our country. Chives are vigorous and generally grow well even without much care. However, to increase chive yields, the method of greenhouse cultivation is fairly widely used. Soare there policy subsidies for growing greenhouse chives?What related cultivation techniques are there?
I. Are there policy subsidies for growing greenhouse chives?
Whether there are policy subsidies for growing greenhouse chives depends on the policies set by the local government for that year; conditions vary from place to place. Based on relevant information, we can see that greenhouse subsidies are divided into different programs, including the following subsidies.
1. Subsidies for infrastructure such as greenhouse film: before building the greenhouse, apply to the agriculture bureau for film subsidies, frame subsidies, and some small equipment needed inside the greenhouse.
some small equipment.
2. Subsidies for irrigation facilities: water-saving agriculture is currently advocated by the state, and drip irrigation-type greenhouse irrigation facilities can be applied for through the water resources bureau.
3. Greenhouse subsidy programs: for facilities such as greenhouses, one can apply for the Ministry of Agriculture horticultural crop standard garden construction project, with each project subsidized 50-100 wan yuan.
As for scale requirements, the first type of subsidy generally does not restrict scale; for specific requirements and amounts, please consult the agriculture bureau; the second type of subsidy is applied for through the water resources bureau.
The third type of project has scale requirements, requiring more than 200 mu within the facility.
II. Key techniques for greenhouse chive cultivation
1. Selection of the chive plot. The site for greenhouse chives should be convenient for transportation, have good irrigation conditions, and consist of sandy loam rich in organic matter. Build the beds running north-south, with a bed width of 1.5 m, a ditch width of 0.6 m, and a length of 30-40 m, with one greenhouse built for every 2 beds.
2. Cultivating strong root stocks is the foundation for high yield and high efficiency.
For winter chive production, the biggest difference between root-nourishing techniques and covering with a greenhouse after dormancy is heavy manure and frequent water, promoting rapid growth, accumulating more nutrients, and cultivating thick root stocks.
3. The proper time for covering with film should be before the local first frost. If covered too early, growth is rapid, the yield peak comes early, and premature senescence is likely; if covered too late, the plants suffer low-temperature chilling injury in the open field, which easily causes leaf tip rot, and once chives enter passive dormancy, growth after covering is slow.
4. Management and harvesting after covering with film. Generally, before covering, a shallow cut can be made, and the film should be applied immediately after harvesting, which makes operation easier. If the chives have not yet reached harvest standard, the film should be applied first to prevent freezing injury, but operation must be careful to avoid damaging the chive plants. In the early period after covering, the indoor temperature is relatively high, so ventilation must be strengthened to prevent leggy growth, generally keeping daytime temperature no higher than 25°C. As the outside temperature drops, gradually reduce the ventilation amount, maintaining 20-25°C during the day and 5-10°C at night.
Later, as the outside temperature drops, add straw mats and paper quilts at night, and cover early and uncover late to strengthen heat preservation. For winter chive production, fertilizer and water are still needed after covering with film. Generally, when the plant height is about 10 cm, apply 40-50 kg of ammonium sulfate per mu between the rows, then earth up the ridges and water; when the plant height is 20 cm, earth up the ridges again. Water 2-3 days before harvesting. After each watering, ventilation must be strengthened to remove moisture, but care must be taken to prevent freezing injury.
For winter chive production, if growth is strong, the harvest period can extend from October to February-March of the following year; after harvesting, dig out the chive roots and carry out fruit vegetable production. Note that each harvest should be cut shallowly to avoid affecting the growth of the next crop. However, for the last harvest, since the chive roots will be dug out after cutting, you can cut as deeply as possible.
5. Strengthen pest and disease control. Because the greenhouse is frequently watered and humidity is relatively high, attention should be paid to controlling gray mold, which can be prevented by fumigating the greenhouse with procymidone smoke agent after each watering; diseased residues should be removed promptly. At each harvest, the diseased leaves peeled off should be gathered and buried deeply.