JPS6328879B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a novel shaped fertilizer. As horticulture has become more popular in recent years, shaped fertilizers have come into widespread use due to their advantages such as ease of application and no scattering or washing away due to wind and rain after application. Rapeseed meal and bone meal are excellent organic fertilizers, but it is extremely difficult to solidify them.
That is, even if rapeseed meal or a mixture containing rapeseed meal and bone meal is pressure-molded using a briquette granulator, a pellet granulator, etc., it will not be possible to solidify it, but even if it can be solidified, the yield will be very low. In order to solve this problem, conventional methods have been used to use blackstrap alcoholic fermentation waste liquid (hereinafter simply referred to as fermentation waste liquid) as a molding agent. Because it is highly viscous and paste-like, it is not easy to mix uniformly with rapeseed meal or bone meal and it takes a long time, the equipment gets dirty due to adhesion, and the water content rises when added, so it needs to be dried after molding. There were some drawbacks. In view of this shape, the present inventor has conducted various studies to obtain a molded fertilizer free from the above-mentioned drawbacks from rapeseed meal or a raw material containing it and bone meal, and has found that the above-mentioned objectives can be achieved by using dried fermentation waste liquid, etc. was found to be achieved. The present invention was completed based on such knowledge, and is a molded fertilizer made by mixing rapeseed meal or a raw material containing rapeseed meal and bone meal with dried fermentation waste liquid or a fertilizer containing the same, and molding the mixture. Rapeseed meal can be used by any of the methods of compression, extraction, and extraction. As the bone meal, meat and bone meal, steamed bone meal, raw bone meal, hoof horn meal, etc. can be used, and steamed bone meal is preferable from the viewpoint of fertilizing effect. When using both rapeseed meal and bone meal, the mixing ratio of bone meal to rapeseed meal is preferably 40% or less (by weight, the same below). Generally, commercially available rapeseed meal and steamed bone meal have a ratio of nitrogen, phosphoric acid, and potassium (5:
2:1), and the latter is guaranteed as (4:22:0), so when bone meal is mixed in the above ratio, phosphoric acid is reinforced compared to rapeseed meal alone, which is preferable for plants. If the bone meal exceeds 40%, there will be too much phosphoric acid and there is a risk that the balance will be disrupted. Dried fermented liquor is made by adding an appropriate carrier (excluding lime) to a concentrated waste liquor (solid content 35-55%) after alcoholic fermentation of blackstrap molasses and turning it into a dry powder. The fertilizer containing this dried product is obtained by mixing the above concentrate with various vegetable oil cakes, corn husks, rice bran, etc. as adsorbents, and then drying the mixture.
The appropriate amount of these additions is 3 to 50%. Molding is performed using a briquette granulator, pellet granulator, or the like. In addition, a known molding accelerator may be added during molding. The present invention is carried out as described above,
By using dried fermentation waste liquid or fertilizer containing it, the mixing time can be shortened compared to simple fermentation waste liquid, and there is no soiling of the equipment, and there is no need for the drying process after molding, which is essential for fermentation waste liquid. Significant improvements were seen, such as: Therefore, according to the present invention, a molded fertilizer can be produced from rapeseed meal or rapeseed meal and bone meal with a high yield, good workability, and excellent fertilizing effect. Examples are shown below. Example 1 Fertilizer containing rapeseed meal and molasses alcoholic fermentation waste liquid dry matter (fermentation waste liquid dry matter content 52%) was mixed according to the compounding ratio shown in Table 1, and the length was sized using a briquette granulator according to a conventional method. I made a briquette of 3 mm, width 25 mm, and height 23 mm. Good molded products were selected from the obtained molded products. Product yield is shown in Table 1.

[Table] Total amount (g)
Example 2 Fertilizer containing dried molasses alcohol fermentation waste liquid in a mixture (A) containing 80% rapeseed meal, 17% steamed bone meal, and 3% vegetable peat as a forming accelerator (fermentation waste liquid dry content
44% and B) were mixed according to the compounding ratio shown in Table 2, and a shaped fertilizer was produced in the same manner as in Example 1. Product yield is shown in Table 2.

[Table] * Same example as in Table 1 3 Fertilizer containing dry molasses alcohol fermentation waste liquid in a mixture (C) containing 65% rapeseed meal, 30% steamed bone meal, and 5% starch as a forming accelerator (fermentation waste liquid) D) with a dry matter content of 63% is mixed according to the formulation in Table 3,
The pellets were extruded into pellets having a diameter of 6 mm and a length of 6 mm using a pellet granulator in a conventional manner while blowing steam. The obtained molded fertilizer was sieved through a 4-mesh sieve. Product yield is shown in Table 3.

[Table] Total amount (g)
As shown in Tables 1, 2, and 3, when fertilizers containing dried fermentation waste liquid are mixed, the product yield is significantly improved. In addition, the workability during mixing is good and the equipment does not get dirty.

Claims (1)

[Claims] 1. Molded fertilizer made by mixing raw materials containing rapeseed meal or rapeseed meal and bone meal with molasses alcoholic fermentation waste liquid and adding a carrier (excluding lime) to dry powder, or a fertilizer containing the same, and forming the mixture.