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A kind of compound rice seedling raising agent and preparation method thereof

A seedling agent and technology for rice, applied in the field of rice seedling agent, can solve problems such as inability to effectively suppress blight, and achieve the effects of enhancing cold resistance and drought resistance, improving the quality of rice seedlings, and improving the emergence rate of seedlings.

Active Publication Date: 2011-12-28
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, above these methods all can't suppress the generation of damp-off effectively

Method used

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  • A kind of compound rice seedling raising agent and preparation method thereof

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Experimental program
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Effect test

Embodiment 1B

[0038] Embodiment 1B type seedling raising agent

[0039]1. Acidification of coal slag: First, dry and crush the raw coal slag to 10-15 meshes, spread the raw coal slag powder on the ground, sprinkle a layer of sulfuric acid water on each layer of coal slag powder, and sprinkle it evenly on the coal slag powder For every 100 kg of lignite slag powder, add 20 kg of sulfuric acid water with a mass concentration of 30%, and the thickness of each layer of slag powder is 4 inches; when it reaches 3 feet thick, start stirring, and seal it with plastic cloth after stirring evenly; The aging period is 7 days. Finally, the heap is spread out, the agglomeration is opened, and it is stirred again to serve as the spare raw material;

[0040] 2. Preparation of nitrohumic acid: the preparation process is divided into three steps: raw material treatment, nitration and aging

[0041] (1) Raw material processing: using lignite as raw material, the water content of lignite is naturally air-dri...

Embodiment 2A

[0046] Embodiment 2A type seedling raising agent

[0047] The difference from Example 1 is that the cinder containing acidified 490Kg, sulfuric acid 100Kg, diammonium phosphate 200Kg, ammonium sulfate 70Kg, nitrohumic acid 65Kg, rare earth 30Kg, potassium sulfate 27Kg, zinc sulfate 10Kg, ferrous sulfate 8Kg , get 1000kg compound rice seedling raising agent after mixing evenly.

Embodiment 3A

[0048] Embodiment 3A type seedling raising agent

[0049] The difference from Example 1 is that the cinder containing acidified 420Kg, sulfuric acid 100Kg, diammonium phosphate 230Kg, ammonium sulfate 110Kg, nitrohumic acid 65Kg, rare earth 30Kg, potassium sulfate 27Kg, zinc sulfate 10Kg, ferrous sulfate 8Kg , get 1000kg compound rice seedling raising agent after mixing evenly.

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Abstract

The invention relates to a composite rice seedling agent and a preparation method thereof. The composite rice seedling agent comprises the following components based on 1000kg: 420-490kg of acidified coal slag, 100-150kg of sulfuric acid, 200-230kg of diammonium phosphate, 70-110kg of ammonium sulfate, 65-85kg of nitro humic acid, 30-40kg of rare earth, 27-35kg of potassium sulfate, 10-12kg of zinc sulfate and 8-10kg of iron sulfate. The composite rice seedling agent provided by the invention can be used for preventing and treating rice seedling blight and improving the disease-resistant capability and development quality of rice seedlings so that the rice seedlings can well thrive.

Description

technical field [0001] The invention relates to a rice seedling-raising agent, in particular to a compound rice seedling-raising agent and a preparation method thereof. Background technique [0002] For many years in Northeast China and Inner Mongolia, during the production of rice seedlings, blight at the seedling stage has generally occurred, and some areas are more serious, causing the death of large areas of rice seedlings, resulting in no seedlings for planting in rice fields. Because the seedling period has passed, rice farmers can only buy seedlings at high prices in other places, or change rice fields into dry fields, and losses are inevitable. During the seedling period, not only disease prevention, but also the amount and management of fertilizer and water are also very important. Only good rice seedlings are the prerequisite for predicting a high yield and a bumper harvest that year. According to preliminary investigations, various problems commonly exist in the...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 吴家兵李晓晏
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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