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Low temperature resistant sweet potato storage cellar and application

A technology of low temperature resistance and sweet potato, which is applied in the field of agricultural product storage in food engineering. It can solve the problems of low cost performance in greenhouse cellars, unsuitability for popularization and application, and moisture damage in cellars. It can achieve temperature and humidity control to facilitate thermal insulation performance and overcome poor thermal insulation performance. , good thermal insulation effect

Inactive Publication Date: 2011-01-19
CROP RES INST SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above sweet potato cellars have the following technical deficiencies: in the initial stage of well cellar storage, due to the high external temperature, it is easy to cause moisture damage in the cellar, and it is difficult to transport sweet potatoes. The respiration of the potato pieces is strengthened, which reduces the oxygen in the cellar, and the CO 2 When it reaches 4-5%, the respiration is inhibited, causing the potato pieces to rot due to lack of oxygen; large cellars on the ground or semi-underground require thick walls, thick roofs, tight structures and heating equipment, and high construction costs; greenhouses The construction of the cellar also requires a storage room surrounded by four walls, an arch shed, and two walls on the front and back, and it is difficult to keep warm in low temperature areas. Therefore, the cost performance of the greenhouse cellar is low and it is not suitable for popularization and application.

Method used

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  • Low temperature resistant sweet potato storage cellar and application
  • Low temperature resistant sweet potato storage cellar and application
  • Low temperature resistant sweet potato storage cellar and application

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Low temperature resistant sweet potato storage cellar, the structure is as follows Figure 1-3 As shown, it includes a cellar 11 and a shed 2. The cellar 11 is located underground, and the shed 2 is located on the ground. The cellar is an inverted trapezoidal soil ditch, wide at the top and narrow at the bottom. There are air vents and delivery ports on the side of the shed. The length of the cellar is 50m, the width of the top of the cellar is 4m, the width of the bottom of the cellar is 2.6m, and the depth of the cellar is 2m. The height of the top of the arch shed 2 from the ground is 70cm. The details are as follows:

[0046] 1) Choose a flat and well-drained plot around, and dig a 50m-long inverted trapezoidal ditch underground as the cellar 11. The earth walls on both sides of the ditch are inclined, which is conducive to load bearing, and the ditch is deep (that is, the cellar is deep). 2m, the width of the top of the ditch (that is, the width of the top of th...

Embodiment 2

[0048] Embodiment 2, the application of cold-resistant sweet potato storage cellar

[0049] Utilize the method for storing sweet potatoes in the low-temperature-resistant sweet potato storage cellar described in embodiment 1, the steps are as follows:

[0050] Sweet potato variety for storage: Jishu No. 18 sweet potato; storage time: mid-October to early April of the following year.

[0051] 1) Clean the cellar, use sulfur fumigation and disinfection, put in 10 grams of sulfur per square meter, and sterilize in a multi-point combustion manner. After 22 hours of airtight fumigation and disinfection, ventilate for 24 hours to complete the disinfection of the storage cellar;

[0052] 2) Harvest the sweet potatoes in good time. When the sweet potatoes are harvested, the temperature is higher than 10°C. On the day of harvest, the sweet potatoes need to be dried in the sun for 3-4 hours, and then select good quality potato pieces without injury or disease and pack them into the cell...

Embodiment 3

[0056] Low-temperature-resistant sweet potato storage cellar, as shown in the structure example 1, the difference is: the length of the cellar 11 is 100m, the width of the top of the cellar is 4.1m, the width of the bottom of the cellar is 2.8m, and the depth of the cellar is 2.2m. The height of the arc shed 2 from the ground is 75cm. The details are as follows:

[0057] 1) adopt the same method as embodiment 1 to dig a long 100m inverted trapezoidal ditch underground as the cellar chamber 11, the earth walls on both sides in the ditch are inclined, which is conducive to load bearing, and the ditch depth (i.e. cellar chamber depth) is 2.2m, The top width of the ditch (that is, the top width of the cellar) is 4.1m, and the width of the bottom of the ditch (that is, the bottom width of the cellar) is 2.8m; a delivery step 7 with a height of 50cm and a width of 50cm is set on the side of the bottom of the cellar where there is a delivery port. The length of cargo step 7 is ident...

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Abstract

The invention relates to a low temperature resistant sweet potato storage cellar and application. The storage cellar comprises a cellar chamber and a tunnel, wherein the cellar chamber is positioned under the ground; the tunnel is positioned on the ground; the cellar chamber is an inverted trapezoid earth ditch which has a wider upper part and a narrower lower part; two side walls of the cellar chamber in a length direction incline inwards; a ventilation opening and a goods delivering opening are formed on the side surface of the tunnel; goods delivering steps are arranged on one side inside the cellar chamber; both ends of the cellar chamber in the length direction are provided with an inlet respectively; and each inlet is provided with a fire wall inside which a flue is formed. The storage cellar overcomes the defects of poor thermal insulation property, high internal humidity and difficult ventilation of a well cellar, and has the advantages of low cost, high storage capacity, easy operation and suitability for popularization and application.

Description

technical field [0001] The invention discloses a low-temperature-resistant sweet potato storage cellar and its application, belonging to the technical field of agricultural product storage in food engineering. Background technique [0002] Sweet potato, also known as sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, etc., is one of the main crops in my country's grain production and is widely planted from northeast to southwest my country. The phenomenon of rotten pits is prone to occur during the storage of sweet potatoes. The main reasons are summarized as "five harms and one deficiency". Sweet potatoes love temperature and are afraid of cold and damp. The suitable storage temperature is 10-14°C and the relative humidity is about 80% (there are differences among varieties, Jishu 18 should be higher than 75%, and Jishu 22 should be lower than 80%). Chilling damage is prone to occur at temperatures below 10°C, and sunken plaques appear on the epidermis, ...

Claims

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Application Information

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IPC IPC(8): A01F25/02
Inventor 王庆美张海燕张立明李爱贤侯夫云解备涛董顺旭吕伍群
Owner CROP RES INST SHANDONG ACAD OF AGRI SCI
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