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Drought-resistant controlled-release fertilizer special for corn in northwest regions as well as preparation method and applications thereof

A special controlled-release fertilizer technology for corn, which is applied in the field of controlled-release fertilizer production and drought-resistant corn-specific controlled-release fertilizer, can solve problems that do not involve soil nutrient status in Northwest China, and achieve the effect of solving the difficult problem of corn fertilization

Active Publication Date: 2011-06-08
菏泽金正大生态工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two special fertilizers for corn solve the problem that the nutrient distribution and release of controlled-release fertilizers meet the nutrient absorption of corn, but there are two deficiencies in the fertilization of corn in Northwest my country. One is that the nutrient distribution only considers the absorption of corn, while Does not involve soil nutrient status in Northwest China

Method used

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  • Drought-resistant controlled-release fertilizer special for corn in northwest regions as well as preparation method and applications thereof
  • Drought-resistant controlled-release fertilizer special for corn in northwest regions as well as preparation method and applications thereof
  • Drought-resistant controlled-release fertilizer special for corn in northwest regions as well as preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Drought-resistant controlled-release fertilizer for corn in Northwest China, the raw materials are as follows:

[0068] Water-absorbing and water-retaining composition 350kg,

[0069] Sulfur plus polymer coated urea 100kg,

[0070] Sulfur coated urea 150kg,

[0071] Potassium chloride compound fertilizer 390kg,

[0072] Zinc sulfate 10kg.

[0073] Preparation:

[0074] Take 200kg of weathered coal, 50kg of soybean meal powder, 240kg of corncob powder, and 20kg of potassium polyacrylate, mix them uniformly, and disc granulate with a particle size of 2 to 4 mm to obtain a water-absorbing and water-retaining composition.

[0075] Take the above-mentioned water-absorbing and water-retaining composition, sulfur-added high-molecular polymer-coated urea, sulfur-coated urea, potassium chloride compound fertilizer, and zinc sulfate are put into a blender according to the ratio and stirred for 5-10 minutes, and fully mixed to obtain the product. Then the mixed fertilizer is ...

Embodiment 2

[0076] Embodiment 2: the special controlled-release fertilizer for corn in the northwest region of drought-resistant type, the mass parts of raw materials are as follows:

[0077] Water-absorbing and water-retaining composition 300kg,

[0078] Sulfur plus polymer coated urea 120kg,

[0079] Sulfur coated urea 168kg,

[0080] Potassium chloride compound fertilizer 400kg,

[0081] Zinc sulfate 12kg.

[0082] The preparation method is the same as in Example 1.

Embodiment 3

[0083] Embodiment 3: the special controlled-release fertilizer for corn in the northwest region of the drought-resistant type, the mass parts of raw materials are as follows:

[0084] Water-absorbing and water-retaining composition 330kg,

[0085] Sulfur plus polymer coated urea 142kg,

[0086] Sulfur coated urea 140kg,

[0087] Potassium chloride compound fertilizer 380kg,

[0088] Zinc sulfate 8kg.

[0089] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a drought-resistant controlled-release fertilizer special for corn in northwest regions as well as a preparation method and the applications thereof. The fertilizer is prepared by compounding water swelling and conservation composition, sulfur high-molecular polymer coated urea, sulfur coated urea, potassium chloride composite fertilizer and zinc sulfate, wherein the water swelling and conservation composition is prepared by mixing and pelleting weathered coal, water-absorbent resin, soybean meal and corn cob powder; and the fertilizer is mainly suitable for drought and semiarid soil in Gansu, Ningxia, northern Shaanxi, southern Xinjiang and west Inner Mongolia in China and used as a base fertilizer to be applied once before rowing corn. With the nutrient proportion, the special fertilizer is suitable for the high-yield need of corn in northwest regions, the effect of the controlled-release fertilizer and is improved, and the fertilizer application problem of coated corn in northwest regions is solved.

Description

technical field [0001] The invention relates to a controlled-release fertilizer, in particular to a special controlled-release fertilizer for drought-resistant corn used in Northwest my country and its preparation and application, and belongs to the technical field of controlled-release fertilizer production. Background technique [0002] In the past, the vast arid and semi-arid areas in Northwest my country, including Gansu, Ningxia, northern Shaanxi, and western Inner Mongolia, etc., due to low rainfall (generally about 300 mm annual rainfall) and no irrigation conditions, the corn planting area was small and the yield was low. With the new technology of corn planting, especially the popularization and application of full-film double-furrow sowing corn, the corn planting area in these areas has expanded rapidly, and the yield has also increased significantly. The corn planting area in Gansu Province alone exceeded 10 million mu, and Shaanxi Province In Yan'an, Yulin and oth...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/08A01G1/00C05G3/90
Inventor 解玉洪蒋祖卫杨宏海
Owner 菏泽金正大生态工程有限公司
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