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A simple soilless seedling raising method for machine-transplanted rice

A technology of machine-transplanted rice and soilless seedling raising, which is applied in the field of seedling raising, can solve the problems of high rate of loose seedling transplanting of small seedlings, inability to meet the requirements of lifting and transporting seedlings, and restricting the development of seedling transplanting, so as to reduce the cost of seedling raising , Improve the efficiency of fertilizer use and benefit the root growth

Active Publication Date: 2017-09-05
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, due to the influence of the seedling packing force, the rate of seedling transplanting in loose trays is high, which cannot meet the agricultural operations such as seedling lifting, seedling transportation, and machine transplanting, which seriously restricts the development of seedling transplanting.
At the same time, due to the low sowing amount of hybrid rice, the root packing force is low, so that the root system of the seedlings cannot be coiled into lumps, which has become a major problem that limits the popularization and application of hybrid rice machine transplanting.

Method used

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  • A simple soilless seedling raising method for machine-transplanted rice
  • A simple soilless seedling raising method for machine-transplanted rice
  • A simple soilless seedling raising method for machine-transplanted rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Seedling board preparation: use commercially available rice, according to the seedling ratio of 1:100 for conventional rice varieties, and 1:130 for hybrid rice varieties, leaving enough seedling field area. Take 150cm seedling boards, the length of the furrow can be adjusted according to the actual conditions of the reserved seedling fields, and a drainage ditch with a width of 30 cm and a depth of 15 cm is reserved between the seedling boards. The seedling field is plowed and stubble removed in advance, and the seedling board is carefully made 10 days before sowing. In order to make the surface of the seedling board smooth, it can be leveled by watering it first. Fill up the high and fill the low, fill the cracks, and make the board fully solid, so that the board surface can be "solid, flat, smooth and straight";

[0039] (2) Laying frame: make a frame with a width of 3cm, a height of 5cm, and a length of 300cm with a hard strip, and lay the frame on the edge of t...

Embodiment 2

[0048] (1) Seedling board preparation: use commercially available rice, according to the rice seedling ratio of 1:80 for conventional rice varieties, and 1:120 for hybrid rice varieties, leaving enough seedling field area, take a 60cm seedling board, and the furrow length can be determined according to the reserved The actual condition of the seedling field is adjusted, and a drainage ditch with a width of 20 cm and a depth of 14 cm is reserved between the seedling boards. The seedling field is plowed and stubble removed in advance, and the seedling board is carefully made 10 days before sowing. In order to make the surface of the seedling board smooth, it can be leveled by watering it first. Fill up the high and fill the low, fill the cracks, and make the board fully solid, so that the board surface can be "solid, flat, smooth and straight";

[0049] (2) laying frame: make the frame of wide 3cm, high 5cm, long 300cm with hard strip, frame is laid on seedling board;

[0050] ...

Embodiment 3

[0058] Seedling packing force and weight comparison

[0059] 1. Materials and methods

[0060] 1) Test location: The test was carried out at the Danyang Experimental Base of Nanjing Agricultural University (32°00′N, 119°32′E, 7m asl) from 2013 to 2014.

[0061] 2) Selection of rice varieties: the conventional japonica rice Wuyunjing 24 and the hybrid indica rice 6 Liangyou 9368 were used as test materials, and the thousand-grain weights were 27g and 28g, respectively. Seed quality should comply with the provisions of GB4404.1.

[0062] 3) Experimental design

[0063] Experiment 1 (comparison of seedling packing force): treatment 1 uses non-woven fabric + rice husk + non-woven fabric as seedling-raising medium, marked as W+S+W group; treatment 2 uses non-woven fabric + rice husk as seedling-raising medium, marked It is W+S group. W+S+W group lower non-woven fabric (under the rice husk) with 25g / m 2 Black spunbonded non-woven fabric is used as the medium, and the upper laye...

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Abstract

The invention belongs to the technical field of rice seedling raising and provides a method for soilless simple rice seedling raising of machine-transplanted rice and a soilless rice seedling raising plate for the machine-transplanted rice. The rice seedling raising method comprises the first step of laying a frame, the second step of laying a mulch, the third step of spreading rice husks and laying a non-woven fabric, the fourth step of sowing seeds, the fifth step of spraying water, the sixth step of setting up an arched shed, covering the arched shed with a shed film, and waiting for the growth of rice seedlings. Compared with traditional rice seedling raising through nutrient soil (matrix), the method completely abandons the nutrient soil (matrix) adopted in a traditional rice seedling raising method, and the length of a rice seedling block can be 3-6 m while the weight of the rice seedling block is only 1 / 6 to 1 / 4 of a conventional nutrient soil (matrix) rice seedling block. The rice seedling raising cost of the method is reduced by 39.6% compared with traditional hard disk rice seedling raising and is reduced by 75.5% compared with a long blanket type rice seedling raising method; the labor input for the rice seedling raising is saved by 37.7% compared with a traditional hard disk rice seedling raising method and does not differ much compared with a long blanket type rice seedling raising method; and the machine-transplanted efficiency is improved by 13.9% compared with the traditional hard disk rice seedling raising method and does not differ much compared with the long blanket type rice seedling raising method.

Description

technical field [0001] The invention belongs to the technical field of seedling raising methods, and relates to a simple soilless seedling raising method for machine-transplanted rice and a soilless seedling-raising board for machine-transplanted rice. Background technique [0002] At present, the well-known domestic rice mechanized transplanting and seedling raising technologies are mainly blanket seedling raising and pot seedling raising technology that has emerged in recent years, and the related technologies are mature. However, the above rice seedling raising methods all use soil or a new type of substrate as the seedling raising medium to rely on plastic trays for seedling raising. On the one hand, the seedling tray with seedling soil weighs about 5kg. and other agricultural operations require a lot of manpower input, and it is easy to cause damage to the seedlings and seedlings; on the other hand, the size of the seedling trays is 28×58cm 2 , in the process of machin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00A01G16/00A01G22/22
CPCA01G22/22A01G24/00A01G24/50A01G31/00Y02P60/21
Inventor 李刚华李玉祥丁艳锋王绍华刘正辉唐设李小春邢晓鸣
Owner NANJING AGRICULTURAL UNIVERSITY