JPH0227907A - Seed rice and method of seeding - Google Patents

Abstract

PURPOSE:To omit plowing and flooding works in spring and transplanting rice seedling by enclosing seed rice in amylose-based vessel or synthetic resin vessel gradually deteriorating by ultraviolet ray. CONSTITUTION:In rising of soil temperature and air temperature in entering the thawing season after snow bound season passes, swelling proceeds, germination of unhulled rice begins, swollen and deteriorated vessel is destroyed by bud and rooting into earth begins in a case of water-degradable vessel. In a case of photodegradable vessel, deterioration begins by ultraviolet ray increasing with thawing and degreaded vessel is broken by germination, then rooting into earth begins.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention covers seeds before sowing and is used for seed rice.

(Prior Art) In order to save labor in rice planting work, a method of cultivating rice in flooded soil has been developed, and the applicant of the present application disclosed one of the methods in a patent application published in 1985, 13s, so%. After that, there was a growing demand for lower rice production prices.
By sowing at the same time as the fall rice harvesting work, can the spring plowing and flooding work and rice planting work be done? It is being sought to eliminate and redirect the time effort that could be saved to other production areas.

(Problem W to be solved by the invention) Seed rice is stored in a container made of the required material along with the necessary chemicals, and the container is sown at the same time as the autumn rice harvesting process, and the curse is inserted into the ground until spring. When the container material deteriorates and collapses, they attempt to germinate and take root in the ground.

(Means for solving the problem) The first material of the container is made of a chemical substance that swells with water and disintegrates, and the second material is made of a chemical substance that disintegrates with light rays. During rice harvesting, the container is dropped onto the ground between the rice stands or inserted into the ground using the same container flow device attached to the rear of the combine harvester. By the time the soil temperature reaches 15°C, which is the optimum time, containers that have deteriorated due to moisture will be disintegrated and the germination of the seed rice will be promoted. The aim is to disintegrate the container, which has already deteriorated due to ultraviolet rays, and to promote the germination of the rice seeds.

(The container collapses due to spring snowmelt water and rising soil temperature, or collapses due to strong ultraviolet rays, and germination breaks through the collapsed membrane and takes root in the ground. Since it is then flooded, it does not germinate into floating plants.

(Example) Examples of substances that swell with water and eventually disintegrate include a polypolymer of starch decomposition product amylose, triacetyl amylose, a kraft product of amylose and styrene, and a mixture of these and amylopectin. Among these, amylose, which is made from styrene, is known to disintegrate in water more slowly than amylose, and has viscoelasticity, making it suitable for use in containers.

Examples of photodegradable substances include those whose molecular bonds are broken down by absorbing ultraviolet rays in sunlight, resulting in a decrease in molecular weight and progressing deterioration, such as Robofilm, a product of Wada Chemical Industry Co., Ltd. . Containers made of these materials can be prepared by mixing 6 grains of rice seeds, zeolite, and fertilizer in a container with a diameter and height of about 2 (up to 2), or by mixing 6 grains of rice seeds, zeolite, and fertilizer, or by using the method disclosed in the earlier application, JP-A-61-1.
Rice seed, lime peroxide, and adsorbent mudstone disclosed in No. 35.509 are filled into a container and sealed with a film. To use this, currently a device is attached to the tail of the combine harvester to dig a drainage ditch to drain the rice and rice fields, so in the case of this invention, a container drainage device is attached. Then, sow the same containers between the rice plants or insert them into the soil, and cover them with cut straw from the rice harvester to prevent scattering by wind and rain or damage by birds. When the snowfall period passes and the snowmelt period begins, the soil and air temperature rise, in the case of water-disintegrating containers, M droplet formation progresses and paddy germination begins, and the swollen and deteriorated containers are ruptured by buds and begin to take root in the soil. . In the case of photo-degradable containers, they begin to deteriorate due to ultraviolet rays that increase with snow melting, and the collapsed containers are broken by germination and begin to take root on the ground. In addition, the leftover rice plants from the previous year will rot and collapse by autumn due to flooding, and will not interfere with the growth of rice.

(Effects of the invention) Since W11 seeds are harvested at the same time as rice harvesting using water or photodegradable containers, conventional work such as drying, plowing, raking, raising seedlings, and rice planting can be omitted, and the labor costs for the omitted costs can be reduced from the rice price. This means that it can be calculated to be reduced.

Claims (5)

[Claims] (1) Seed rice sealed in an amylose-based container that gradually deteriorates with water so that it germinates and takes root in the ground as the soil temperature rises. (2) Seed rice is sealed in an amylose-based container that gradually deteriorates with water, sown between rice plants or inserted into the ground, and germinates and takes root in the ground as the soil temperature rises, thereby simplifying the series of rice-planting operations. Seeding method. (3) Seed rice that is sealed in a synthetic resin container that gradually deteriorates due to ultraviolet rays, so that it germinates and takes root on the ground during the season when ultraviolet rays increase. (4) The rice seed according to claim (1) or (3), wherein a germination promoter is enclosed in a container. (5) By enclosing rice seeds in a synthetic resin container that gradually deteriorates due to ultraviolet rays, sowing them between rice plants or inserting them into the ground, they will germinate and take root in the ground as the ultraviolet rays increase.
A sowing method that simplifies the series of rice planting tasks.