JPH11155394A - Production of rice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a process for producing rice that can produce rice without seedling transplantation. SOLUTION: In the first step of the process for producing rice, the seeds of weeds as Chinese milk vetch or pasture grass are sowed to the rice paddy in the autumn or late autumn and these weeds are grown in the rice field until the spring. In the second step, the seeds of rice plant are sowed in the rice field in May to July in the transplanting season without removing the weed plants, then herbicide is applied to the rice field to kill the weed plants. In the third step, the rice plants germinating from the rice seeds grow by utilizing withered weeds as nutrients. In the fourth step, rice grains are harvested from the rice plants grown and ripened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing rice relatively easily without much labor and effort.

[0002]

2. Description of the Related Art Conventionally, in the case of rice production, rice seeds are sown in the seedlings around May to June to produce rice grown to an appropriate size, which is put into appropriate small bundles and fertilizer is put in advance. They planted and planted rice in paddy fields, weeded them during the growth process, and harvested and harvested rice in autumn.

[0003]

However, in the conventional rice production, there was a problem that a great deal of labor was required in the process of planting rice. Therefore, in recent years, rice is planted using machines.However, the use of expensive machines is poor due to problems such as using rice only at the time of rice planting. There was a problem that making rice was unprofitable. In addition, before planting rice, it is necessary to sow fertilizer in the paddy field and cultivate it, which also has a problem that a great deal of labor is required. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rice production method capable of producing rice without planting rice.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The method of producing rice described in the first method is to sow seeds of weeds such as vetch or pasture in a rice field in autumn or late autumn, and to grow them naturally by spring.
A step of sowing seeds in the rice field during the rice planting period from May to July without removing the native weeds, and then spraying a herbicide to withdraw the weeds; and a rice germinated from the seeds. However, it has a third step of growing the dead weeds as nutrients and a fourth step of harvesting rice from the grown and grown rice. Further, in the method for producing rice according to claim 2, in the method for producing rice according to claim 1, in the second step, after sowing the seed rice and watering, the rice production is performed for about 1 to 2 weeks. Herbicides are being sprayed. The method for producing rice according to claim 3 is the method for producing rice according to claim 1 or 2, wherein after the fourth step, the straw after harvesting is appropriately cut and returned to the rice field again. It has 5 steps.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described to provide an understanding of the present invention. In the field where rice is to be harvested in the fall or late fall, weed seeds such as vetch and pasture are sown. Here, leguminous plants such as Astragalus are preferable to these species because they fix nitrogen in the air by root nodule bacteria and produce nitrogen fertilizer. If left in this state until spring, buds will grow and weeds such as vetch will prosper (the above is the first step). Seeds of these weeds is sufficient to the extent that lush weeds varies depending seeds for example, 100 to 5,000 grains approximately per 1 m ^2.
Until spring, rice fields will be dry without water.

Next, seeds are sown in a state where weeds grow during the rice planting period from May to July, and water is poured into the rice paddies to turn them into paddy fields. Here, the amount of the seed paddy is set to be about 0.2 to 0.4 bales per piece, which is about 1/10 to 1/20 of the amount of the seed paddy finally produced in this rice field. Further, the amount of water to be added may be the same as the conventional one. Then, when about 1 week to 2 weeks (preferably 10 days) have passed after sowing the seed rice, a herbicide (commonly known as weed killing) is sprayed. This herbicide includes herbicides that are harmless to rice plants and kill weeds such as vetch, for example, diquat (6,7-dihydrodipyrido dibromide (1,2-α: 2 ′, 1′-c)). Pyrazine diium),
Molinate (S-ethylhexahydro-1H-azepine-1-thiocarbonate) and propanyl (3 ′, 4′-dichloropropionanilide) are used (the above is the second step).
As a result, weeds such as vetch are depleted and rot as it is to become rice fertilizer (the above is the third step).

If the rice is left as it is and the water is managed in the same manner as in a normal paddy field, the rice will grow in the fall. Therefore, the rice is harvested, polished and the rice is harvested. (The above is the fourth step). Here, the amount that can be harvested is about 4 to 5 bales / return, which is about half as compared with the case where ordinary cultivation is performed, fertilizer is sown, and rice is planted (9 bales / return). Since the labor is 1/5 to 1/10 or less, as a result, the yield rate per unit labor is improved.

[0008] Thereafter, it is preferable that the harvested straw is appropriately cut and returned to the rice field again, and this is used as fertilizer for weeds. In this embodiment, seed rice is sown on weeds during rice planting, and after a certain period of time, herbicides are sprayed. This makes it possible to extend the growing period of the weeds as much as possible, and furthermore, since the seeds are hidden in the weeds, they have the characteristic that they cannot be eaten by birds and the like, but the present invention is necessarily restricted to this order. The herbicide can be sprayed simultaneously with the seed rice. It is preferable that the seed rice is soaked in water before sowing. This promotes germination and also makes it hydrated and heavy, sinks below and is less eaten by birds and the like. Also, after sowing the seed rice, it is free to apply fertilizer appropriately to increase the yield.

[0009]

The rice production method according to claims 1 to 3,
As is clear from the above explanation, in the fall or late autumn, seeds of weeds such as vetch and pasture are sown in the rice field, they are grown by spring, and the native weeds are not removed. Then, seeds are sown in a rice field, and then a herbicide is sprayed to kill the weeds.The rice germinated from the seeds is grown with the withered weeds as nutrients, and the rice is grown and harvested. As a result, there is no need to plant rice or cultivate the rice, thereby reducing the labor for rice production. As a result, the yield of rice is reduced compared to the conventional method of rice planting, but rice can be harvested with less labor, and as a result, rather than letting the rice field idle because of the labor required,
The rice fields can be used effectively. In particular, in the method for producing rice according to claim 2, after sowing the seeds and watering, the herbicide is sprayed for about 1 to 2 weeks, so that the weeds grow during the period. Fertilizer can be used more effectively, and even if seed rice is sown, it is hidden in weeds, so that there is an advantage that it cannot be easily eaten by birds and the like. In the method for producing rice according to the third aspect, since the straw after harvesting is appropriately cut and returned to the rice field, this amount also becomes fertilizer, and the input of necessary fertilizer can be reduced. .

Claims (3)

[Claims] 1. a first step of sowing seeds of weeds such as astragalus and pasture in a rice field in autumn or late autumn, and self-growing them by spring; and a rice planting period of from May to July without removing the indigenous weeds. A second step of sowing seeds in the rice field and then spraying a herbicide to withdraw the weeds; a third step in which rice germinated from the seeds grows with the withered weeds as nutrients; Harvesting rice from ripened rice. 4. A method for producing rice, comprising the steps of: 2. The rice production method according to claim 1, wherein, in the second step, the herbicide is sprayed about 1 to 2 weeks after sowing the seed rice and watering. 3. The rice production method according to claim 1, further comprising a fifth step of appropriately cutting the straw after harvesting and returning the straw to the rice field after the fourth step.