Fresh-keeping technology of lily

After harvest, lilies are prone to browning and decay in the process of storage and transportation. At present, most of the harvest is soil storage, such as sand storage, cellar, because the soil storage is not easy to manage, temperature and humidity conditions are not easy to control, it is easy to cause large losses due to storage failure. The technology of keeping lily fresh with "miniature energy-saving cold storage + ma+ fresh-keeping agent" is introduced below.

(1) technological process

Timely harvest → for finishing, remove stem soil, cut off fibrous root →, select fruit, treat → with → fresh-keeping agent, dry → into box or basket lined with fresh-keeping bag or basket →-2-0 ℃ cold storage fully pre-cold + tie mouth → on the shelf or palletizing.

(2) main points of operation

The optimum temperature is-2-0 ℃, and the relative humidity is 85% RHI 90%.

The main results are as follows: (1) the variety characteristic lily has a dormant period of 3 months and is more tolerant to storage. The main lilies are Longya lily, Sichuan lily and so on, of which white, flat ball-shaped, tightly clasped, a big sweet Sichuan lily is of good quality and resistant to storage. The storage resistance of lilies produced in the north and northwest is better than that in the south.

(2) under the premise of not being harmed by cold (freezing), the storage lily should be picked late in time, usually in the middle and last ten days of November. Do not irrigate 10 days before harvest. The action should be careful during harvest, gently remove the soil to prevent mechanical injury, and dry the surface of the lily, be careful not to be exposed to the sun.

(3) Penicillium rot is most likely to occur in the storage of lily treated with antistaling agent, so it is appropriate to choose the preservative with strong inhibitory effect on Penicillium. Soak in the special liquid antistaling agent for fruits and vegetables developed by the National Agricultural products fresh-keeping Engineering and Technology Research Center for 3-5 minutes, then dry directly or pre-cool and air-dry in 0 ℃ cold storage. The antistaling agent can significantly inhibit the growth and reproduction of molds that cause lily rot and prevent decay.

(4) in cartons or baskets packed with plastic wrap, 5 kg per carton is suitable. The 0.03mur0.04mm pvc fresh-keeping film produced by the National Agricultural products fresh-keeping Center should be used for long-term storage. the film has the characteristics of high moisture permeability, anti-dew and suitable air permeability, which is suitable for the physiological characteristics of lily. Also known as 0.04mi 0.06mm pe or pvc vacuum package. When the temperature of the lily is cooled to-2 ℃, the mouth is pierced and the product is palletized.

(5) if the exposure time of high temperature, mechanical injury or air is too long, the outer skin of lily bulb is easy to turn lilac and become scorched petal, which affects the edible value, so timely and appropriate packaging sealing measures should be taken to prevent it.

(6) Cold storage management miniature energy-saving cold storage equipment is advanced, high degree of automation, easy to manage, covers an area of only 40mur50 square meters, a total investment of about 40,000 yuan, can store 25 tons of lilies, remarkable benefits, suitable for the current production situation of lilies in our country. The storage temperature is kept at-2 ℃-0 ℃, and the humidity can be adjusted through plastic film without special measures.

(7) the lily can be kept fresh for 8 months by using this technology.

(8) the above technology should be adopted in the transportation of freshly harvested lilies. After pre-cooling, the lily is directly loaded into a truck and sold on the market within 20 days. For the transportation of lilies in the process of storage, it can be taken out directly from the cold storage in the early stage of storage, and can be transported by truck in the early stage of storage. in the later stage of storage, it is suitable to be transported by heat preservation truck because of the decrease of storability.

At present, some people in production use vacuum packaging and then transport @ # @ 136 flowers. If the temperature fluctuation is too large, this method is easy to cause lily anaerobic respiration and carbon dioxide damage, resulting in lily browning, corruption and deterioration. Therefore, this method is only suitable for short-term transportation, timely sales or cold chain transportation sales system, but not suitable for long-distance transportation and sales at room temperature.