CN1278404A

CN1278404A - Sweet potato Preserving method

Info

Publication number: CN1278404A
Application number: CN 99108830
Authority: CN
Inventors: 张春平
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-22
Filing date: 1999-06-22
Publication date: 2001-01-03

Abstract

The storage and fresh-keeping method of sweet potato includes the following steps: selecting, bagging, piling, covering with plastic film, covering with wheatgrass, rice grass or soil and opening ventilation hole, etc.. Said invention is simple in storage process, convenient and low in cost, and its fresh-keeping efficiency can be up to above 95%. It can be used indoors or outdoors, also can be used for storing other vegetables.

Description

Sweet potato Preserving method

The present invention is a kind of method of sweet potato preservation and freshness.

Sweet potato is fresh-keeping to be an individual hang-up always, though the cost that people pay is big, and not basic solution, the loss late of hiding well is also below 50%, and poor is then bigger.People mostly adopt section to dry rear storage, to reduce the loss in the harvest season for this reason.But this kind method has changed original local flavor and the characteristic of sweet potato, and just can't solve for reserving seed for planting.

Purpose of the present invention is exactly for above situation and research and design is a kind of simple, the storage practice that is suitable for, the storage facilities expense is low, the storage addressing is easy, the indoor and outdoor all can, be easy to apply.

The objective of the invention is to solve like this: select excellent sweet potato, in its ventilative woven bag of packing into, every packed 10 to 120 kg, selects slightly high ground again, the sweet potato bag that installs is crouched put, and piles square or rectangle sweet potato heap.Horizontal every row can pile the odd number heap, such as 3 heaps, 5 heaps, 7 heaps etc., or piles the even numbers heap, 4 heaps, 6 heaps, 8 heaps etc., middle sweet potato heap heap height is the highest, and both sides heap height reduces successively, distance is 0.4 meter to 1 meter between heap and the heap, uses long sweet potato bag overlap joint between two heap tops.Drain into tens of rows vertically can as required sweet potato being piled number, distance is 0.3 meter to 1 meter between every row sweet potato heap, and every row's heap overlaps with long sweet potato bag equally with top between the heap.By overlapping between horizontal and vertical respectively heap top and heap top with long sweet potato bag, fill and lead up the inclined-plane with the small sweet potatoes bag, make whole heap top take the centre as the boundary, form a triangle deck, then whole sweet potato storing heap is covered tightly with plastic film, envelope is real, and is thicker with wheat straw or 0.5 meter to 3.0 meters on straw lid, tighten up with Anti-blow-open with rope or iron wire at last, as also can with 0.3 meter to 1.5 meters of earth mulch is thick.Leave some ventilation holes on the sweet potato heap whole top.The interior temperature of heap is remained between 10-15 ℃, and relative moisture remains on 85%-95%.

Storage technology of the present invention is simple, expense is low, stack indoor, outdoor all can, through the test of 2,000,000 jin of sweet potato storings, fresh-keeping effect is fabulous, fresh-keeping rate reaches more than 95%, because method is easy, both has been applicable to single household, also is applicable to the collective villages and small towns, except being applicable to that sweet potato storing is fresh-keeping, also can preserve other vegetables.

Accompanying drawing is the schematic cross section of sweet potato grave of the present invention.

The 1. potato bags 2. of filling sweet potato are laterally piled spacing 3. plastic films, 4. wheat and rice straws or soil 5. long sweet potato bags among the figure

6. air-vent 7. heap top tapered planes

Embodiments of the invention are described below:

At first, select excellent sweet potato, in its ventilative woven bag of packing into, every bag of weight is 25 kilograms;

The second, crouch every bag of sweet potato and put in the higher ground of choosing, piles square heap.Horizontal heap 4 rows, 0.5 meter of heap spacing, in two heaps high 3 meters, both sides two heaps are high 2 meters; Endwise piling 10 rows, 0.3 meter of heap spacing;

Three, with 1.5 meters long sweet potato bags overlap joint between horizontal and vertical each heap top and heap top, fill and lead up with the small sweet potatoes bag, make whole heap top become the roofing of three shapes;

Four, at whole heap end face with to cover tightly envelope with plastic film all around real, thicker 1 meter of plastic film loam cake with straw or wheat straw;

Five, locate open an air-vent with vertical every heap top, the heap spacing crosspoint of two heaps in horizontal each heap spacing;

Six, tighten up with rope or iron wire, prevent wind;

Seven, put up cabin at storage heap one end, use as the caretaker.

Claims

1. sweet potato Preserving method is characterized in that the preservation and freshness step is:

A. select excellent sweet potato with its ventilative woven bag of packing into;

B. select high slightly ground, the sweet potato bag is crouched put, pile square heap, horizontal every row can pile odd number heap or even numbers heap, and middle sweet potato heap is the highest, and both sides reduce successively, and piling spacing is 0.4 meter to 1 meter.Vertically determine row's number of heap as required, the heap spacing is 0.3 meter to 1 meter;

C. between the heap top of horizontal and vertical heap spacing, bind, and two oblique top faces of heap are filled and led up with the small sweet potatoes bag with long sweet potato bag overlap joint;

D. whole heap end face and to cover tightly envelope with plastic film all around real;

E. thick at top and 0.5 meter to 3 meters on the wheat and rice straw of plastic film external application all around lid.With rope or iron wire wheat and rice straw is tightened up then, prevent wind, also 0.3 meter to 1.5 meters on available mound lid is thick;

F. at the place, heap top of laterally piling spacing and longitudinal separation heap spacing crosspoint, open air-vent;