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Fertilizer with rice field methane emission reduction function and applying method thereof

An application method and fertilizer technology, applied in fertilization methods, inorganic fertilizers, land preparation methods, etc., can solve the problem of inability to reduce methane in rice fields, and achieve the effects of increasing costs and labor, alleviating greenhouse gas emissions, and reducing atmospheric environment.

Active Publication Date: 2015-06-03
湖南丰惠肥业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to propose a kind of fertilizer and its application method that slowly releases nitrogen, improves soil fertility, prevents rice field soil acidification, and can reduce methane emissions in view of the existing conventional fertilizers and fertilization techniques that cannot reduce methane emissions in paddy fields.

Method used

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  • Fertilizer with rice field methane emission reduction function and applying method thereof
  • Fertilizer with rice field methane emission reduction function and applying method thereof
  • Fertilizer with rice field methane emission reduction function and applying method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A kind of fertilizer of rice field methane emission reduction of the present invention, it is mainly formulated by the component of mass fraction shown in following table 1:

[0038] Table 1: the formula composition table of embodiment 1

[0039]

[0040] The lime nitrogen in the above fertilizer is agricultural lime nitrogen, and its main chemical composition is CaCN 2 , and use convenient granular or powder products with a particle size of 3.75-5.5mm.

[0041] Apply the fertilizer mentioned above in this embodiment to the early rice test, and select cow dung with higher methane emissions as an auxiliary material in the test, to observe the significant effect of the fertilizer in this embodiment on methane emission reduction, and set three treatments:

[0042] A: control group; application of conventional nitrogen, phosphorus and potassium fertilizers;

[0043] B: Cow dung (2700kg / ha cow dung)+application of conventional nitrogen, phosphorus and potassium fertiliz...

Embodiment 2

[0056] A kind of fertilizer of paddy field methane emission reduction of the present invention, it is mainly formulated by the component of mass fraction shown in following table 3:

[0057] Table 3: the formula composition table of embodiment 2

[0058]

[0059] The lime nitrogen in the above fertilizer is agricultural lime nitrogen, and its main chemical composition is CaCN 2 , and use convenient granular or powder products with a particle size of 3.75-5.5mm.

[0060] Apply the above-mentioned fertilizer of this embodiment to the late rice test, to observe the significant effect of the fertilizer of this embodiment on methane emission reduction, two treatments are set:

[0061] A: control group; application of conventional nitrogen, phosphorus and potassium fertilizers;

[0062] B: the fertilizer of this embodiment (1050 kg / ha).

[0063] Each of the above treatments was repeated three times, arranged in random blocks, and set up protection rows. Residential Area 20m ...

Embodiment 3

[0071] A kind of fertilizer of rice field methane emission reduction of the present invention, it is mainly formulated by the component of mass fraction shown in following table 4:

[0072] Table 4: the formula composition table of embodiment 3

[0073]

[0074] The lime nitrogen in the above fertilizer is agricultural lime nitrogen, and its main chemical composition is CaCN 2 , and use convenient granular or powder products with a particle size of 3.75-5.5mm.

[0075] Using the application method of the above-mentioned Example 2 to carry out a comparative experiment, it can also be found that the fertilizer of this example has a significant effect of reducing methane emission in paddy fields.

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Abstract

A fertilizer with rice field methane emission reduction function comprises the following components in percentage by weight: 15-30% of lime nitrogen, 20-40% of ammonium chloride, 0-15% of ammonium dihydrogen phosphate, 0-40% of calcium superphosphate and 10-20% of potassium chloride; at least one of ammonium dihydrogen phosphate and calcium superphosphate is not zero. The applying method of the fertilizer comprises the following steps of: mixing at least one in the components, crushing, screening, pre-mixing according to weight ratio, granulating, drying, cooling to obtain a pre-mixed material; mixing with lime nitrogen having similar particle size according to mass ratio to obtain the fertilizer; before tillage, covering water on the surface of the rice field, spreading the fertilizer on the surface of the soil, irrigating with shallow water, turning over soils, mixing fertilizer and plough layer soils uniformly by soil tillage measures; and transplanting rice after 7-15 days after the fertilization and tillage. The fertilizer has significant effects of fertilizing soil fertility, preventing rice field soil from acidification, reducing rice field methane emission and the like.

Description

technical field [0001] The invention belongs to the intersecting technical field of soil fertilizer and ecological environment control, and in particular relates to a fertilizer formula and an application method for reducing emission of rice field methane. Background technique [0002] Methane is one of the most important greenhouse gases. In addition to its significant radiative forcing on the atmosphere, it can also chemically affect stratospheric water vapor and global ozone, and the changes in atmospheric water vapor and ozone affect the global radiation budget and energy Balance matters. [0003] Rice fields are one of the important emission sources of atmospheric methane and one of the important reasons for the increase of atmospheric methane concentration in the past 100 years. Fertilization is an important field management measure that affects methane emissions from paddy fields. It has a significant impact on methane emissions from paddy fields, especially the appl...

Claims

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Application Information

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IPC IPC(8): C05G1/06A01C21/00
CPCY02P60/22C05B1/02A01B79/02C05B7/00C05C3/00C05C7/00C05D1/02
Inventor 吴家梅彭华纪雄辉
Owner 湖南丰惠肥业有限公司
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