Preparation of rice nursing- seedlings and method for directly seeding mature seedlings

A technology for milk seedlings and rice, which is applied in the field of rice seedling cultivation and cultivation, can solve the problems of low survival rate of milk seedlings, short preparation process, and long required time, and achieve the effects of short preparation process, simple preparation process and high survival rate

Inactive Publication Date: 2011-09-14
COASTAL AGRI RES INST HEBEI ACAD OF AGRI & FORESTRY SCI +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to prepare milk seedlings with multiple processes such as soaking seeds, germination, coating (or fertilizer) in the prior art. The process is complicated and the required time is longer. Environmental conditions are strict and the survival rate of milk seedlings is low. One is to provide a seed refining method to replace multiple processes such as seed soaking, germination, coating (or fertilizer), simple process, short preparation process and high survival rate. The preparation method of rice milk seedlings, the second is to provide a method for direct seeding of rice

Method used

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Embodiment 1

[0027] Embodiment 1: milk seedling preparation method:

[0028] It is the core step of the present invention to adopt the "seed refining method" to prepare rice milk seedlings. "Seed refining method" refers to the whole process from the time when the seeds absorb water to the preparation of milk seedlings, allowing the seeds (or rice buds) to absorb water, air, light and temperature evenly, and directly refine the seeds into milk seedlings.

[0029] The specific operation steps are:

[0030] 1. Preparatory stage: make preparations before seed refining: select seeds, remove impurities, select full-grained rice grains as rice seeds, and dry the seeds for 2 to 3 days under light conditions before seed refining Improve the germination rate; refine seeds outdoors in summer and in plastic greenhouses or outdoors in spring. Its method is: spread one deck straw on the ground, spread the fiber net that one deck mosquito is used on the straw layer, the width of fiber net is 3m, and th...

Embodiment 2

[0035] Embodiment 2: the seedling live broadcast method comprises the following steps:

[0036] 1. Flooding stage of live broadcast: Before live broadcast, arrange the land to be sown so that the height difference of the land to be sown is 2 . At this stage, the shallow water layer should be kept, and the shallow water layer should be: shallow without falling dry, and the depth should be ≤3cm. Keep water for 45 hours in summer and 70 hours in spring, then drain and dry to enter the seedling stage.

[0037] 2. Drying and standing seedling stage: Immediately apply an appropriate amount of quick-acting N.P.K fertilizer after draining and drying, and when there is no runoff water, the total amount of fertilization is 22.5-30.0kg / 667m 2 , N.P.K fertilizer at the stage of falling dry and standing seedlings, the fertilization amount of diammonium phosphate is 7.5-10.0kg / 667m 2 , The fertilization rate of ammonium sulfate is 10.0~15.0kg / 667m 2 , the fertilization rate of potassium ...

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Abstract

The invention relates to a method for cultivating rice seedlings, in particular to the preparation of rice nursing seedlings and a method for directly seeding mature seedlings. A method for preparing the nursing seedlings comprises a seed producing process, which comprises a preparation stage, a seed stage, a bud stage and a nursing seedling stage. After coleoptile is opened, the nursing seedlings are used for direct seeding; the length of each seed root is between 5 and 30 millimeters; 1 to 5 adventitious roots of which the lengths are less than or equal to 3 millimeters; the length of each green bud is between 15 and 20 millimeters; before being unfolded, a first complete leaf serves as a final nursing seedling in the method; and the day before the final nursing seedling is an optimal nursing seedling period. The method for directly seeding the mature seedlings comprises a direct seeding flooding stage, a seedling planting stage, a mature seedling water conservation stage and an individual management stage. A seed preparation method of the invention replaces a plurality of processes such as seed soaking, germination accelerating, coating (or fertilizing) and the like; and the method has the advantages of short preparation process, simple planting method, high nursing seedling survival rate and convenient management.

Description

technical field [0001] The invention relates to a method for raising and cultivating rice seedlings, in particular to a method for preparing rice milk seedlings and direct-seeding seedling formation. Background technique [0002] The direct (throwing) sowing technology of rice milk seedlings is a light rice cultivation technology. This kind of technology is currently mainly researched and applied in some provinces and cities such as Shanghai, Liaoning, Jiangsu, and Jiangxi in my country. [0003] The main points of the rice milk bud throwing planting technology promoted by the Agricultural Technology Service Center of Jiading District, Shanghai: Soak the seeds with medicine for 2 days, and then germinate them for about 2 days. It usually takes 8-9 days to raise the milk seedlings. [0004] The main cultivation techniques of the Agricultural Technology Extension Center of Dandong City, Liaoning Province: Put the rice seeds into water to soak the seeds, when the rice seeds a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00
Inventor 周汉良刘小京吴新海刘长江刘善资杨莉琳陈丽娜王凤芝
Owner COASTAL AGRI RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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