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西瓜入保鮮冷庫(kù)儲(chǔ)存之前，要先讓西瓜預(yù)冷。預(yù)冷可以在采摘后堆放在地里，直接利用夜里低溫預(yù)冷，在早晨溫度回升之前存入冷庫(kù)貯藏。西瓜入保鮮冷庫(kù)時(shí)在一周內(nèi)，利用冷庫(kù)制冷機(jī)系統(tǒng)循環(huán)空氣，借用熱傳導(dǎo)和蒸發(fā)潛熱冷卻西瓜，讓西瓜本身與冷庫(kù)溫度一樣。西瓜保鮮冷庫(kù)的相對(duì)溫度8-12℃，相對(duì)濕度80％左右，最低庫(kù)溫可控制在5-6℃。
Watermelon into the preservation of storage before storage, to make watermelon pre cold. Pre cooling can be stacked in the ground after picking, the direct use of night low temperature pre cooling, in the morning before the temperature rise in the cold storage storage. Cold storage in a week, the use of cold storage refrigeration system cycle air, heat transfer and latent heat of evaporation cooling watermelon, watermelon itself and cold storage temperature. Watermelon preservation of the relative temperature of cold storage 8-12 C, the relative humidity of about 80%, the minimum storage temperature can be controlled at 5-6.
1、西瓜保鮮冷庫(kù)貯藏的相對(duì)溫為5-6℃，尤其是西瓜入保鮮冷庫(kù)貯藏初期，應(yīng)根據(jù)漸漸降溫后，再調(diào)整為正常貯藏，最大限度的減少西瓜的生理病害，提高西瓜的儲(chǔ)存質(zhì)量。夏季或秋季從保鮮冷庫(kù)內(nèi)取出西瓜時(shí)，西瓜表面會(huì)容易凝結(jié)水珠，出保鮮冷庫(kù)后在貨架的時(shí)間很短，所以西瓜出保鮮前需要慢慢升溫，讓西瓜本身溫度慢慢升高到合適的溫度再出庫(kù)，這樣非常有利于保證西瓜的質(zhì)量和延長(zhǎng)貨架時(shí)間。
The relative temperature of 1, fresh watermelon cold storage is 5-6 Deg. C, especially watermelon into the fresh cold storage period should be based on the gradually cooling down, and then adjusted to the normal storage, minimize the physiological diseases of watermelon, watermelon to improve storage quality. Summer or autumn from cold storage preservation out of watermelon, watermelon easily condensed water droplets surface, a cold storage room on the shelf after a very short time, so the need to slowly warming before fresh watermelon watermelon, let temperature slowly rise to the appropriate temperature and then out of the library, which is very conducive to ensuring the quality and prolonging the shelf life of watermelon.
2、西瓜保鮮冷庫(kù)貯藏的相對(duì)濕度為80-85％，由于制冷系統(tǒng)工作蒸發(fā)管會(huì)經(jīng)常不斷地結(jié)附冰霜，再又不斷地將蒸發(fā)管上的冰霜沖走，再就是根據(jù)建筑物多用水泥材料，導(dǎo)致保鮮冷庫(kù)內(nèi)濕度降低，這樣不符合西瓜對(duì)濕度的要求，在西瓜貯藏期可以可以在地面灑水或是鋪濕草簾保持保鮮冷庫(kù)內(nèi)合適的濕度。
The relative humidity of 2, fresh watermelon cold storage for 80-85%, the refrigeration system working evaporating pipe constantly attached to frost, again constantly evaporating pipe on frost washed away, then according to the building with cement materials, resulting in lower humidity cold storage preservation, which do not meet the requirements of the humidity of the watermelon. In the storage period can be watermelon wet straw in ground sprinkler or maintain humidity suitable in cold storage preservation.
3、西瓜保鮮冷庫(kù)內(nèi)，西瓜在儲(chǔ)存過程中會(huì)通過呼吸作用放出co2和乙烯等其他刺激性氣體，當(dāng)這些氣體達(dá)到一定濃度后，會(huì)導(dǎo)致西瓜果實(shí)的后期成熟衰老，西瓜品質(zhì)變差，無法達(dá)到長(zhǎng)期儲(chǔ)存。所以西瓜保鮮冷庫(kù)必須通風(fēng)換氣。通風(fēng)換氣時(shí)間最好是在自然溫度較低的早晨，同時(shí)開啟自動(dòng)噴霧器，隨冷風(fēng)將細(xì)微水霧送入西瓜保鮮庫(kù)內(nèi)，效果更加理想。
3, fresh watermelon in cold storage, watermelon will emit CO2 and ethylene and other irritating gases through respiration during storage, when the gas reaches a certain concentration, can lead to late watermelon fruit ripening and senescence, watermelon quality becomes poor, unable to achieve long-term storage. So watermelon fresh cold storage must be ventilated ventilation. Ventilation time is best in the natural temperature is low in the morning, at the same time open the automatic sprayer, with the cold air will be fine mist into the watermelon storage, the effect is more ideal.
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