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Rice seedling raising substrate and preparation method thereof

A technology for raising rice seedlings and substrates, which is applied to planting substrates, botanical equipment and methods, and rice cultivation, etc., can solve problems such as the inability of substrate structure and characteristics to meet planting needs, unreasonable proportion of straw fermentation components, and poor rice growth conditions. , to achieve the effect of improving growth indicators, promoting yield growth, and improving physical and chemical parameters

Pending Publication Date: 2020-08-28
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above methods, there are generally defects such as unreasonable distribution of straw fermentation components, the structural characteristics of the prepared substrate cannot meet the planting requirements, and the composition is single, which eventually leads to poor growth of rice.

Method used

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  • Rice seedling raising substrate and preparation method thereof
  • Rice seedling raising substrate and preparation method thereof
  • Rice seedling raising substrate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Take 100 kg of rice straw with a moisture content of less than 10% after drying, and break it into fragments with a length of 0.5 cm with a crusher to obtain a straw base material, and measure the total nitrogen and total carbon content of the straw base material; Sprinkle 2g of fermentation agent into the above-mentioned straw base material, adjust the carbon-nitrogen ratio to 30:1 with urea after fully mixing, the carbon-nitrogen ratio can provide the best environment for the propagation of fermentation agent, and help to increase the fermentation speed; Then prepare 150kg of water, stir evenly while adding water, until the water content is adjusted to 55-65%, to obtain fermentation raw materials;

[0030] Pile up the mixed fermentation raw materials and cover them with a transparent film for fermentation. During the fermentation process, keep ventilation, and insert a thermometer in the center of the fermentation raw material pile to observe the temperature change; th...

Embodiment 2

[0035] The only difference between this example and Example 1 is that the crop stalks used are sorghum stalks; by weight ratio, fermentation agent: straw base material = 1:40000; and by weight ratio, the rice in this example Seedling-raising substrate is composed of the following components: 80 parts of fermented straw, 10 parts of paddy field soil, 18 parts of zeolite, 15 parts of peat, 0.02 parts of rooting agent, 15 parts of urea sulfate, 0.05 parts of potassium sorbate, 0.08 parts of chitosan, poly 0.8 parts of acrylamide, 0.8 parts of sulfur powder.

[0036] Others are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0038] The only difference between this example and Example 1 is that the crop stalks used are corn stalks; by weight ratio, fermentation agent: straw base material = 1:45000; and by weight ratio, the rice in this example Seedling-raising substrates include: 65 parts of fermented straw, 8 parts of rice field soil, 15 parts of expanded mica + activated carbon, 10 parts of biochar, 0.03 parts of rooting agent, 12 parts of bentonite, 0.04 parts of potassium sorbate, 0.07 parts of chitosan, polyacrylic acid Potassium + ammonium polyacrylate 0.8 part, sulfur powder 0.7 part.

[0039] Others are the same as in Embodiment 1, and will not be repeated here.

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Abstract

The present invention discloses a rice seedling raising substrate and a preparation method thereof. The rice seedling raising substrate comprises the following raw materials in parts by weight: 50-80parts of fermented straw, 5-10 parts of rice field soil, 10-20 parts of a filler, 8-15 parts of biomass organic raw material powder, 0.01-0.03 part of a rooting agent, 10-15 parts of a binder, 0.03-0.05 part of an anti-mold agent, 0.05-0.1 part of a flocculant, 0.5-1.0 part of a water retaining agent and 0.5-1.0 part of an acid-base regulator. Crop straw is fully fermented, reuse and sustainable development are realized, and at the same time the rice seedling raising substrate significantly improves growth indexes of seedlings and promotes increase of output.

Description

technical field [0001] The invention relates to the field of rice planting, in particular to a rice seedling raising substrate and a preparation method thereof. Background technique [0002] Rice is the main food crop in my country, and the current main cultivation method is transplanting. Conventional rice seedlings are mainly based on soil, so a large amount of plow layer soil will be consumed, resulting in the loss of soil resources and the deterioration of the ecological environment. Therefore, it is an inevitable choice for modern agriculture and sustainable ecological agriculture to develop new rice seedling-raising substrates that replace soil or partially replace soil. [0003] In production activities, crop straws are often used for burning or returning straws to the field, but straw burning not only pollutes the environment, but also has a low nutrient utilization rate. Production. Therefore, there are problems such as low utilization rate and pollution of the p...

Claims

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Application Information

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IPC IPC(8): A01G24/22A01G24/10A01G24/15A01G24/13A01G24/12A01G24/25A01G24/28A01G24/20A01G24/30A01G24/35A01G24/23A01G24/27A01G22/22
CPCA01G24/22A01G24/10A01G24/15A01G24/13A01G24/12A01G24/25A01G24/28A01G24/20A01G24/30A01G24/35A01G24/23A01G24/27A01G22/22
Inventor 朱春权金千瑜张均华曹小闯朱练峰孔亚丽禹盛苗
Owner CHINA NAT RICE RES INST
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