CN1049792C - Pelletizing production method for small seeds of vegetables and flowers - Google Patents

Abstract

The present invention relates to a method for coating seeds. Powdery materials are firstly processed with a water soluble adhesive before coating and then are crushed by a disintegrator for coating seeds. The method can make the hardness of coated layers become harder, but does not affect the sprouting and seedling emergence of seeds.

Description

The pill manufacture method of small-sized seed

The present invention relates to a kind of seed-coating method, specifically about making the method for small-sized seed dressings such as vegetables, flowers, that is: seed is given the method for pill dressing with fertilizer such as powder coating material, somatotropin, macroelement, trace element and bactericide etc.

The research history of seed pelleting is longer, some developed countries of beginning are producing and just to begin extensive use from the seventies, even to this day the kind clothing agent of various functions occurs in succession and is accepted by society, for example in Japan, most vegetable seeds at before sales all by dressing.Dressing mainly contains powder, coating and several forms of pillization of hanging.Owing to hang powder and coating is easy and simple to handle, speed is fast, materials are few, cost is low, accepted by society at first, promote very fast aborning, but because medication is single, it is little to take dose, more easily produces shortcomings such as poisoning simultaneously, its certain limitation is arranged, and be used on the crop seeds of big grain more.Development along with society; require kind of clothing agent functional diversity and practicality; carry single medicament and solve the needs that single problem can not satisfy development; simultaneously because difficult, the serious waste phenomenon of arabica sowing; very easily be subjected to the influence of extraneous bad condition seedling stage, so the big granulation dressing research of small-sized seed attracts much attention gradually.In recent years; the aqueous solution such as the mostly employing sticker of the big granulation dressing of small-sized seed such as gelatin, starch, carbohydrate, carboxymethyl cellulose (CMC), MC and some powder body materials such as diatomite, talcum powder, silica, kaolin, dolomite, bentonite etc. carry out dressing to seed; its concrete operations are as follows: with spray-on process the aqueous solution of adhesive is sprayed at the surface of the seed; drop into pulverulent material again; itself and seed are glued together; repeatable operation like this; coatings up to the surface of the seed reaches required thickness, forms capsuled seed.But the pill seed of Xing Chenging like this, pill layer are soft, very easily cause fragmentation, and be impracticable on producing.

The objective of the invention is at above-mentioned defective, proposed a kind of small-sized seed pill pelletizing coating method, this method can solve the shortcoming of prior art.

Below be described in detail main contents of the present invention:

A kind of small-sized seed coating method is characterized in that the following step:

(1) the dressing raw material is handled

Get consubstantiality powder-deposit material and 1% carboxymethyl cellulose (CMC) sticker aqueous solution and be stirred to pasty state, 100 ℃ of forced air dryings 6 hours are crushed to its particle diameter by 300 mesh sieves with cracker.

(2) pillization

Get small-sized seed and put into coating pan, 60 rev/mins of rotating speeds, the limit adds through the powder body material limit of above-mentioned processing and sprays into the sticker aqueous solution, takes out when the seed particle diameter reaches 3mm and puts into the baking oven air blast, and temperature is 35-38 ℃, more than 4 hours.

Sticker of the present invention can also be the aqueous solution such as gelatin, starch, carbohydrate, MC; The powder body material of indication of the present invention can be diatomite, talcum powder, silica, kaolin, dolomite, bentonite etc.

One of skill in the art can add agricultural chemicals or chemical fertilizer as required in the above step.

The invention has the advantages that:

1, after small-sized seed is by big granulation dressing, the dose of taking of seed increases, takes the pharmacopoeia class and increase, and the drug effect release period is long simultaneously, and action effect is big, has saved laxative and fertilizer application frequency;

2, the minimizing owing to formulation rate and number of times makes environmental pollution reduce;

3, the big granulation of small-sized seed, the practicable bunch planting of seed has promptly been saved seed and has been saved the labour again, also can save the thinning number of times;

4, the pill pelletizing coating of seed makes and shape, the uniform quality unanimity of product has improved the competitiveness of seed as commodity.

Embodiment one:

1, talcous surface treatment

Talcum powder 200ml, 200ml is stirred to pasty state with it with the 1%CMC aqueous solution, and 100 ℃ of forced air dryings 6 hours are crushed to its particle diameter with cracker and can use by 300 orders.

2, pillization

Chinese cabbage seed 10 grams are put into coating pan, 60 rev/mins of rotating speeds, and the limit adds talcum powder (surface-treated) limit and sprays into the 1%CMC aqueous solution, takes out when the seed particle diameter reaches 3mm and puts into the baking oven air blast, and temperature is 35-38 ℃, more than 4 hours.Various data see Table 1A and handle.

The dressing result of table 1 different disposal is than changeing

Bursting apart property (all bursting apart used second) the excellent difference of 40 60 30 70 pill cracking rates (%), 0 15 20 55 no seed pill rate (%) 0001 surface flatnesses (ball-type) is excellent poor in the good good water of A B C D germination percentage (%) 97 77 87 95 emergence rates (%) 93 91 88 93 case hardnesses (hand sense)

B handles: talcum powder just adds 5 parts of CMC powder in 100 parts of powder body materials without surface treatment, mixes and can use, and the pill pelletizing coating program is identical with example 1.The results are shown in Table 1.

C handles: do not add any material in the talcum powder; The pill pelletizing coating program is identical with example 1, the results are shown in Table 1.

D handles: talcum powder just adds 2 parts of CMC powder without surface treatment in annual 100 parts of talcum powder, mix and can use; The pill pelletizing coating program is identical with example 1, the results are shown in Table 1.

Claims (1)

1, a kind of small-sized seed coating method is characterized in that the following step:

(1) the dressing raw material is handled

Get consubstantiality powder-deposit material and 1% carboxymethyl cellulose (CMC) sticker aqueous solution and be stirred to pasty state, 100 ℃ of forced air dryings 6 hours are crushed to its particle diameter by 300 mesh sieves with cracker;

(2) pillization

Get small-sized seed and put into coating pan, 60 rev/mins of rotating speeds, the limit adds through the powder body material limit of above-mentioned processing and sprays into the sticker aqueous solution, takes out when the seed particle diameter reaches 3mm and puts into the baking oven air blast, and temperature is 35-38 ℃, more than 4 hours.