Rice seedling culture substrate and application thereof

A technology for raising seedling substrates and rice, applied in planting substrates, applications, rice cultivation, etc., can solve the problems of rice seedlings that cannot meet the growth needs, poor disease resistance, underdeveloped root system and weak seedlings

Active Publication Date: 2019-07-12
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are nearly 600 million tons of straw in China every year, but less than 20 million tons are used. About 97% of the straw is burned, piled up and abandoned, which not only causes waste of resources, but also causes environmental pollutio...

Method used

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  • Rice seedling culture substrate and application thereof
  • Rice seedling culture substrate and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0030] In the present invention, the preparation method of the rice seedling raising substrate preferably comprises the following steps:

[0031] The fermentation substrate, potassium and magnesium fertilizer, ammonium humate, rare earth, chitosan and wood vinegar are pulverized and mixed to obtain the rice seedling raising substrate.

[0032] The invention provides the application of the rice seedling raising substrate in rice seedling raising.

[0033] In the present invention, the method for raising rice seedlings preferably includes the following steps: placing the seedling raising tray on a seedbed with a soil covering thickness of 10 cm, covering the seedling raising tray with 1.4 to 1.6 cm of the rice seedling raising substrate, watering, sowing, Then cover the seedling tray with 0.4-0.6 cm thick soil, cover with plastic film, and peel off the plastic film after the rice seedlings grow out.

Embodiment 1

[0036] Straw, pig manure, and raw bone meal (the phosphorus content of raw bone meal is 22%) are crushed into 40 meshes, presoaked, and enough water is absorbed, and the straw, pig manure, and raw bone meal are mixed according to the volume ratio of 10:0.7:0.3 to build a heap. Keep water at 60% of the total mass of the mixture, ferment for 30 days at a temperature of 25° C., turn the pile once every 3 days during the fermentation, and dry the fermented substrate after fermentation. Combine the dried fermentation substrate with potassium and magnesium fertilizer (potassium and magnesium fertilizer contains 33%), ammonium humate (ammonium humate contains 4.2% of total nitrogen), rare earth (rare earth contains rare earth oxide optimally 37%), Chitosan (chitosan N-acetyl removed 55%), wood vinegar (pH value is 4) by volume and mass ratio is 1m 3 : 0.45Kg: 0.7Kg: 0.001Kg: 0.1Kg: 4Kg and mix evenly to make rice seedling raising substrate.

[0037] Place the seedling tray on a seed...

Embodiment 2

[0039] Straw, pig manure, and raw bone meal (the phosphorus content of raw bone meal is 22%) are crushed into 50 meshes, pre-soaked, and enough water is absorbed, and the straw, pig manure, and raw bone meal are mixed at a volume ratio of 10:0.9:0.5 to build a heap. Keep water as 60% of the total mass of the mixture, ferment for 30 days at a temperature of 25° C., turn over once every 3 days during the fermentation, obtain a fermentation substrate after fermentation, and mix the fermentation substrate with potassium and magnesium fertilizer (potassium and magnesium fertilizer with a potassium content of 33%) ), ammonium humate (ammonium humate contains 4.2% of total nitrogen), rare earth (rare earth contains 37% of rare earth oxides), chitosan (55% of chitosan's N-acetyl group is removed), wood vinegar Liquid (the pH value of wood vinegar is 4) is 1m by volume and mass ratio 3 : 0.5Kg: 0.8Kg: 0.002Kg: 0.2Kg: 8Kg and mix evenly to make rice seedling raising substrate.

[0040]...

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PUM

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Abstract

The invention provides a rice seedling culture substrate and application thereof, and belongs to the technical field of rice planting. The rice seedling culture substrate comprises the following components in proportion: a fermentation substrate, a potassium magnesium fertilizer, ammonium humate, rare earth, chitosan and wood vinegar, wherein the mass ratio of the volume of the fermentation substrate, the potassium magnesium fertilizer, the ammonium humate, the rare earth, the chitosan and the wood vinegar is 1 m<3>: 0.45-0.8 Kg: 0.7-1 Kg: 0.001-0.004 Kg: 0.1-0.5 Kg: 4-18 Kg; and the fermentation substrate is obtained by mixing and fermenting straws, pig manure and raw bone meal according to the ratio of 10: 0.7-1.5: 0.3-1 by volume. The rice seedling culture medium has the characteristicsof promoting of robust growth of seedlings, developed root system, strong stress resistance, low morbidity and the like, so that the rice seedling culture medium can be used in rice seedling culture.

Description

technical field [0001] The invention belongs to the technical field of rice planting, and in particular relates to a rice seedling raising substrate and an application thereof. Background technique [0002] Rice is the main food crop in my country. As of 2016, the rice planting area in my country was 30.16 million ha 2 , The rice output reached 206.93 million tons. The dominant areas for rice planting in my country are mostly concentrated in the Northeast and the middle and lower reaches of the Yangtze River. Among them, the rice seedlings in the Northeast mostly adopt the dry seedling raising technology, and a large amount of high-quality cultivated soil is required every year as the seedling bed soil. With the development of large-scale rice seedling raising in Northeast China, the demand for high-quality seedling bed soil has increased sharply, and it has caused damage to the farmland plow layer soil; at the same time, due to the influence of pesticide residues in the so...

Claims

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Application Information

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IPC IPC(8): A01G24/10A01G24/30A01G24/22A01G24/20A01G24/28A01G22/22C05F17/00C05G3/00C05G3/02C05G3/60
CPCA01G22/22A01G24/10A01G24/20A01G24/22A01G24/28A01G24/30C05B17/00C05F17/00C05G3/00C05G3/60C05C3/00C05D1/00C05D9/02C05F3/00C05F11/00Y02W30/40
Inventor 赵伟闫雷李传宝张璐阳王宏燕卢丽英鲁萍张少良周秦崔雨桐
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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