JPH01120227A - Method for cultivating sugarcane - Google Patents

Abstract

PURPOSE:To simplify cultivation work and increase yield per unit area, by alternately forming planting furrows and protruding rows in specific dimensions, densely planting seedlings in planting furrows and cultivating the seedlings under specific condition. CONSTITUTION:The height from the bottom of protruding rows for mounds 2 to be planting furrows 1 to the top of the protruding rows for the mounds 2 is about >=1m. The width of the planting furrows 1 is about 1m and the width of the protruding rows is about 1.2m. Seedlings having 4-6 nodes are densely planted in the planting furrows and farmland soil is thinly covered to lay grass mulch thereon. When the seedlings are germinated, rooted and grown to a certain size, farmland soil in the protruding row parts as cultivation soil is transferred to the base part of the grown sugarcane and prevent lodging thereof.

Description

[Detailed Description of the Invention] <Industrial Field of Application> The present invention relates to a cultivation method that can dramatically increase the yield per unit area of sugarcane.

<Conventional technology> Regarding sugar cane, which is mainly cultivated in parts of Okinawa and Kagoshima prefectures in Japan, there seems to be some research into its varieties and fertilizers to use, but there is still little research regarding the cultivation method itself. The method based on the method recommended by the government has been adopted for many years, and the current yield is about 6 tons per 10 are, which is lower than the world average of 7 tons. The cultivation method recommended by this country is to alternately create planting trenches and embankments, and plant seedlings in the trenches.
First, seedlings should be planted when the millet has grown to a certain extent because the depth of the previous cultivated soil is shallow, and the height of the embankment is inevitably low9, and the width of each planting groove and embankment is narrow. If the soil is cultivated, the amount of field soil in the embankment will decrease accordingly, and as a result, the amount of field soil at the roots of the millet will decrease, causing the millet to lodge and break its roots.

Furthermore, as mentioned above, this may be due to the small amount of field in the embankment area, but the number of seedlings planted in the planting ditch is very sparse, less than one in two, and is planted very sparsely. The yield per unit area is therefore small, and since the seedlings are planted without bedding, the soil is exposed and water evaporates rapidly, requiring water to be replenished using sprinklers, etc., which requires more effort in cultivation. Was.

<Problems to be Solved by the Invention> The present invention provides a method for cultivating sugarcane that eliminates the drawbacks of the above-mentioned conventional techniques, simplifies the cultivation work itself, and increases the yield per unit area. The purpose is to provide

<Means for Solving the Problems> The above object of the present invention can be achieved by adopting the following means. In other words, the gist is that before planting seedlings, the field soil is deeply plowed, grooves that serve as planting furrows and raised lines that serve as embankments are formed alternately, and the height from the bottom of the grooves to the top of the raised lines is The width of the concave rows is approximately 1 m and the width of the raised rows is approximately 1.2 m. Seedlings with 4 to 6 nodes are densely planted in the planting furrow, and a thin field is spread on top of them. A method for cultivating sugar cane, which is characterized in that after covering with soil, grass is applied, and when the seedlings germinate, take root, and grow to a certain size, the field soil in the embankment is transferred to the roots of the growing millet as culture soil. It is.

<Examples and effects> The method of the present invention will be described in detail below while showing examples thereof.

This example was carried out in Yoron-cho, Oshima-gun, Kagoshima Prefecture, where the present inventor resides.

First, the field soil was thoroughly tilled to a depth of about 1.5 m using a plow, and the planting furrow (
1) and embankment (2) were formed. The depth and width of each part at that time are the numerical values (unit: m) shown in FIG.

For comparison, Figure 2 shows an example of a conventional cultivation method.In the conventional method, the planting furrow (1') is The depth is about 20c
m, and its width at the upper opening is approximately 20 cm, and the groove (
1') becomes narrower as it gets deeper.

Into the groove (1) formed as shown in FIG. 1, as shown in FIG. 3, place a violet (3) having 4 to 6 nodes each.

(3), etc. are placed quite densely, and then as shown in Figure 4, a thin layer of field soil (4) is placed on top of that, and then bedding grass (5) is placed on top of it.
was applied. In the case of the conventional method, one- or two-node seedlings (3') are placed at appropriate intervals in each planting furrow (1') as shown in Figure 5, and the field is placed on top of them. There was only soil (4') to cover it, and no grass at all.

In the state shown in Fig. 4, the planting is completed, but in the case of this example, the number of seedlings planted is approximately 10.0 per 10 ares.
00 lines, which is a considerable difference compared to the conventional method shown in FIGS. 2 and 5, which has approximately 3,000 lines.

Although the above explanation does not mention fertilization, fertilizer is applied both as a base fertilizer and as an additional fertilizer.11 In the method of the present invention, the number of seedlings planted per unit area is significantly higher than in the conventional method. Therefore, it is desirable to apply a larger amount of fertilizer than conventional methods, but even if this method of applying more fertilizer is taken into account, the overall profitability is much higher than the conventional method.

After planting seedlings and mulching as described above, consider the degree of dryness of the field soil depending on the amount of rainfall at that time, water at appropriate intervals, and leave it for a while. ,
It usually takes about 10 days to germinate, although it varies depending on the amount of rainfall, etc., and after 40 days, a large number of millets will appear due to natural division. In the case of this example, approximately 100 millets, including effective iron content, had grown per lrn' 100 days after planting. In this way, when the effective method is finished and the millet has grown to a certain size, it is difficult to say that the millet is growing.
1. Transfer soil from the embankment between the trenches and the roots of the millet by cultivating soil. This cultivation is to be repeated after that, and usually it is done once in the first year, not in the second year, and once again in the third year to plant new seedlings.

In accordance with the method of this example described above,
The millet that was planted on the 15th of the month is currently lrn.
The plants were growing with an average of 100 millets per plant, and they did not fall over even in strong winds.

<Effects of the Invention> As described in detail above, the method of the present invention has the characteristics of deep plowing, dense planting, and soil cultivation, and the formation of wide planting furrows for these to work more effectively. By adopting a new method that has not been used in the conventional method of growing sugarcane, it is possible to dramatically increase the yield per unit area of sugarcane. More specifically, by plowing the field soil deeply before planting seedlings, the cultivated soil is loosened and the roots are able to grow easily.Secondly, the basic condition of farming is that there is sufficient air circulation. Of course we are satisfied with this, but even more so because we can increase the height between the bottom of the trench and the top of the embankment, and the subsequent soil treatment can provide enough soil without having to dig up the embankment. This has the great effect of preventing lodging due to exposed roots of growing millet. In addition, in the present invention, by the conventional method (lf
By applying bedding, which has not been used at all, approximately 7.250rr+J per year can be used to secure the required amount of water.
In other words, surface evaporation of groundwater can be prevented, and the grass will eventually return to the soil and become compost.

According to the method of the present invention, based on simple calculation, 10
A yield of around 1001 tons per are is expected, and even if you take into account the accompanying increase in fertilizer and the need for bedding, the production effect is significantly higher than that of conventional methods.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the shape of the field soil before seedling planting in the embodiment of the present invention, Fig. 2 is a sectional view showing the shape of the field soil in the conventional method, and Fig. 3
The figure is a perspective view showing the densely planted state of seedlings according to the embodiment of the present invention, FIG. 4 is a partially cutaway perspective view showing the state after the seedlings are planted, and FIG. 5 is the state after the seedlings are planted using the conventional method. FIG. In the diagram: (1) Planting ditch (2) Embankment (3) I1゛1 (4) Field soil (5) So; father grass

Claims (1)

[Claims] 1. Before planting the seedlings, plow the field soil deeply, form grooves that will serve as planting furrows and raised lines that will serve as embankments alternately, and keep the height from the bottom of the grooves to the top of the raised lines approximately The width of the concave strip is approximately 1 m, and the width of the raised strip is approximately 1.2 m. Seedlings with 4 to 6 nodes are planted densely in the planting furrow, and a thin layer of field soil is placed on top of them. A sugar cane cultivation method characterized in that after covering the sugar cane with grass, the seedlings germinate, take root, and grow to a certain size, and then the field soil in the embankment is transferred to the roots of the growing cane as culture soil.