Method for raising rice seedlings in dryland substrates

A dry land and substrate technology, applied in rice cultivation, botany equipment and methods, fertilizer mixture, etc., can solve the problems of root damage, dry seedling picking and other problems, and achieve the effect of less damage to the root system and easy survival

Active Publication Date: 2014-07-30
HANGZHOU JINHAI AGRI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at a series of problems caused by the difficulty in taking seedlings and serious root damage in traditional dry seedling raising, and provides a method for raising seedlings on dry land matrix

Method used

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  • Method for raising rice seedlings in dryland substrates

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 Shown, the method for rice seedling raising on dry land substrate, comprises the steps:

[0021] (1) Seedling field selection and seedbed preparation: choose a dry land with fertile soil, convenient irrigation and drainage, and convenient management as a dry land for raising seedlings, and make a seedbed with a width of 1.5m. So that the seedbed is high in the middle, low in the surroundings, with an 8-degree slope from the middle to the surroundings, the compaction depth of the seedbed is 4cm, and the soil density at the bottom is 1.3g / cm -3 ;

[0022] (2) Substrate preparation: the upland soil is air-dried, and mechanically pulverized into particles with a diameter of 2 mm for subsequent use, and then mixed evenly by volume ratio of upland soil 65%, organic fertilizer 10%, peat 20% and vermiculite 5%. Adjust the acidity with the acid material until the pH of the substrate is 5.0, and then spread the prepared substrate on the seedbed with a thickness...

Embodiment 2

[0027] Such as figure 1 Shown, the method for rice seedling raising on dry land substrate, comprises the steps:

[0028] (1) Seedling field selection and seedbed preparation: choose a dry land with fertile soil, convenient irrigation and drainage, and convenient management as a dry land for raising seedlings. Make a seedbed with a width of 1.6m. The surface of the seedbed is 7cm higher than the aisle. So that the seedbed is high in the middle, low in the surroundings, with a 10-degree slope from the middle to the surroundings, the compaction depth of the seedbed is 4.5cm, and the soil density at the bottom is 1.4g / cm -3 ;

[0029] (2) Substrate preparation: the upland soil is air-dried, and mechanically pulverized into particles with a diameter of 3 mm for subsequent use, and then mixed evenly by volume ratio of upland soil 65%, organic fertilizer 10%, peat 20% and vermiculite 5%. Adjust the acidity with the acid material until the pH of the substrate is 5.3, and then spread...

Embodiment 3

[0033] Such as figure 1 Shown, the method for rice seedling raising on dry land substrate, comprises the steps:

[0034] (1) Seedling field selection and seedbed preparation: choose a dry land with fertile soil, convenient drainage and irrigation, and convenient management as a dry land for raising seedlings, and make a seedbed with a width of 1.7m. The surface of the seedbed is 10cm higher than the aisle. So that the seedbed is high in the middle, low in the surroundings, and a slope of 12 degrees from the middle to the surroundings, the compaction depth of the seedbed is 5cm, and the soil density at the bottom is 1.4g / cm -3 ;

[0035] (2) Substrate preparation: the upland soil is air-dried, and mechanically pulverized into particles with a diameter of 3 mm for subsequent use, and then mixed evenly by volume ratio of upland soil 65%, organic fertilizer 10%, peat 20% and vermiculite 5%. Adjust the acidity with the acid material until the pH of the substrate is 5.5, and then ...

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Abstract

The invention relates to the technical field of rice planting, particularly to a method for raising rice seedlings in dryland substrates. The method comprises the following steps: (1) selecting rice seeding beds and preparing seedbeds; (2) preparing substrates; (3) soaking seeds for accelerating germination; (4) sowing and performing seedling management. According tothe technical scheme provided bythe invention, as the seedbeds are compact layers with the thickness of 4-5 cm, the roots of the rice cannot penetrate through the compact layers in the process of growth, and all the roots grow in the substrates, so that when seedlings are pulled, the rice seedlings are easily pulled up, and the problem that the roots of plenty of rice seedlings are damaged during seedling pullingbecause the roots are rooted in deep layers in the traditional method of raising rice seedlings is solved. The compact layers are in the density range of 1.3-1.4 g / cm-3g / cm, so that most of the roots of the rice seedlings are not easy to penetrate through the compact layers to root deep soil, but water, oxygen and nutrient elements can move freely, the normal growth of the rice seedlings is ensured, damage to the roots when the seedlings are pulled is extremely small, the seedlings are easy to survive after transplantation, and the effects of early germination andgrowth and high efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of rice planting, in particular to a method for raising rice seedlings on a dry land substrate. Background technique [0002] There are three main types of rice seedling raising methods: wet seedling raising, dry seedling raising and water seedling raising. The main problems of water seedling raising are long-term flooding, insufficient oxygen in the soil, serious rotten seedlings, easy growth of seedlings, and poor quality of seedlings. This method was only used before the 1970s. After that, it was improved to wet seedling raising, and then developed dry seedling raising; wet seedling raising and dry seedling raising are the main seedling raising methods for current rice production in my country. [0003] my country's dry seedling raising technology is a rice seedling raising technology introduced by Japan in the 1970s. During the whole seedling raising process, the soil is kept moist, the seedlings are s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00C05G3/00A01G22/22
Inventor 朱德峰向镜
Owner HANGZHOU JINHAI AGRI CO LTD
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