JPS593440B2 - Fuukai rapeseed - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rapeseed oil cake fertilizer that has superior fertilizing effect compared to ordinary rapeseed oil meal, and is highly effective when used for cultivation on sandy soil, sloped land, and in greenhouses, Especially tea, watermelon, ichibi, and rakkyo.

The purpose is to provide fertilizer suitable for konnyaku, bulbs, Western vegetables, etc.

Rapeseed oil cake has been commonly used for the cultivation methods and crops mentioned above, and is considered an excellent organic fertilizer because it is slow-acting and does not experience the leaching phenomenon that occurs with inorganic fertilizers.

There are two types of rapeseed oil cake: compressed rapeseed oil cake obtained by the traditional pressing method and powdered rapeseed oil cake obtained by the current pressing or extraction method. Although the former has excellent slow-acting properties, it contains impurities that are not related to the fertilizer effect. Because it contains oil, the growth effect on crops is not necessarily satisfactory, and with advances in oil refining technology, the pressing method is no longer used, so it has become difficult to obtain recently.

On the other hand, although the latter does not contain any impurities, the fertilizer effect may be a little too fast, and leaching is observed in sandy cultivation, so one of the advantages of rapeseed oil meal, slow release, cannot be fully utilized. I'm jealous.

The present invention has been completed in view of these current circumstances, and is capable of eliminating the drawbacks of conventional rapeseed oil meal and providing a highly effective fertilizer, especially for sandy soils,
Suitable for cultivation on slopes and in greenhouses.

That is, the present invention is a powdered rapeseed oil cake produced by a compression or extraction method that is shaped into pellets with a diameter and length of 4 to 10 mm and is used by dispersing it in soil or scattering it on the soil surface. This relates to rapeseed oil meal fertilizer.

It is necessary for the fertilizer of the present invention to have the above-mentioned size; if the size is smaller than this, the effect of suppressing initial growth will be poor, and if it is too large, the decomposition in the soil or on the soil surface will be too slow, so neither is preferable.

Various molding machines can be used for shaping, and binders and oils and fats may be added as necessary.

By adding oils and fats, it is possible to produce something equivalent to pressed rapeseed oil cake.

The fertilizer of the present invention is used by mixing and dispersing it into the soil or by spreading it on the soil surface, and it has a great effect on crop growth and is extremely useful as a fertilizer with better fertilizing effect than conventional rapeseed oil meal. be.

In other words, the fertilizer of the present invention does not have the leaching phenomenon and soil deterioration effect that are the disadvantages of inorganic fertilizers, has a slow-release and continuous fertilizing effect, and can improve and revitalize the soil. There is no fear of root cracks caused by the effects of impurities that tend to be found in lees, and it exhibits excellent performance such as premature fertilization and no leaching in sandy soils, which are observed in powdered rapeseed oil lees produced by pressing or extraction methods.

In particular, when the fertilizer of the present invention is spread on the soil surface, it has a higher density than powdered rapeseed oil meal, so it is heavier and will not be scattered or washed away by wind and rain.

Moreover, fertilizers stick to the soil surface a while after application, so
The fertilizer effect can be sufficiently spread over a sustained period.

The present invention has many advantages as described above, and is suitable for cultivating various crops on sandy soil, on sloped land, and in greenhouses.

For example, high quality tea produced in Kyushu, Kyoto, Shizuoka, and Sayama, especially Heme tea and Uji tea, which require nitrogen and long-lasting fertilizer effects, are ideal for gyokuro, as well as watermelon from Tottori and stone walls from Shizuoka. A variety of high-quality Western vegetables (asparagus,
It is extremely effective in cultivating crops such as celery, broccoli, lettuce, cauliflower) and rakkyo.

Examples are shown below.

Example In order to understand the fertilizing properties of shaped rapeseed oil meal (product of the present invention), compressed rapeseed oil meal (conventional product A), pressed oil powder rapeseed oil meal (conventional product B)
) and inorganic fertilizers were set up, sandy soil was used, and snow white cabbage (Crucaceae) was selected as the test crop for comparative study.

The product of the present invention used is pressurized oil powder rapeseed oil cake with a diameter of 61 nm.
rIL, shaped into a pellet with a length of 67 nm.

The study design was as follows.

1. Analytical results of test fertilizer 2. Test soil River sand (for Tama) 1.1 to 9/1 pot 3, Test method 1) Test scale Flower pot (15 (7) straw roasted body) 3 series 2 ) Test crop Snow white cabbage 3) Composition of test plot 4) Overview of cultivation Filling of soil September 4, 1975 Application Fertilizer September 4, 1975 (sprinkling on the surface) Sowing September 5, 1975 25 Le'/1 Hachima Hiki September 15, 1975 There will be 6 episodes.

Harvesting: October 18, 1975 To compare the leaching of fertilizer, watering was performed at 200 mi every day for 10 days after cotyledon development, regardless of whether or not it was dry.

When the above test was conducted, the following results were obtained.

In other words, although there is almost no difference in germination between the plots, when looking at the initial growth after germination, growth is clearly suppressed in the conventional product B plot.
The cotyledons are also smaller compared to inorganic plants.

In addition, although the conventional product in Area A was not as effective as Area B, the inhibitory effect was still observed.

In contrast, there was almost no inhibition of growth in the plots of the present invention.

Looking at the subsequent growth, initially the inorganic single plot showed good growth, but as the growth progressed, the growth in the inventive plot was superior.

However, in the conventional product plot, the initial growth suppression effect remained until later, and it was especially noticeable in B plot.

In addition, there was less leaching in the sandy soil in the inventive product area.

Next, the results of the yield survey are shown in the table below.

As shown in Table 3, the growth effect of the inventive product area in sandy soil cultivation is greater than that of the conventional product A and B areas,
It is an extremely effective fertilizer for the various crops mentioned above.

Claims (1)

[Claims] 1. Shaped rapeseed oil meal, which is prepared by shaping powdered rapeseed oil cake produced by a compression or extraction method into pellets with a diameter and length of 4 to 10 mm, to be used by dispersing it in soil or scattering it on the soil surface. fertilizer.