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Growth promoting slow release fertilizer capable of reducing nitrate content of leaf vegetables

A technology of nitrate content and slow-release fertilizer, applied in the field of growth-promoting slow-release fertilizer, can solve problems such as unreasonable and large application amount, and achieve the effects of promoting absorption and utilization, saving fertilizer resources, and reducing fertilizer amount

Inactive Publication Date: 2018-12-11
蚌埠市金牛湾农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, the improvement of crop yields has become more and more dependent on chemical fertilizers, but the amount of fertilizers has become more and more unreasonable. A series of environmental problems caused by this have also become increasingly prominent, and the current situation is becoming increasingly worrying.

Method used

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  • Growth promoting slow release fertilizer capable of reducing nitrate content of leaf vegetables
  • Growth promoting slow release fertilizer capable of reducing nitrate content of leaf vegetables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A growth-promoting slow-release fertilizer for reducing the nitrate content of leafy vegetables, made of the following raw materials in parts by weight: 300 parts of organic fertilizer, 240 parts of urea, 110 parts of superphosphate, 85 parts of potassium chloride, silicon calcium 55 parts of fertilizer, 30 parts of phosphorus bacterial fertilizer, 20 parts of fly ash, 18 parts of bacteria residue, 10 parts of biochar, 5 parts of micro-fertilizer, 35 parts of slow-release binder, and 0.4 part of mixed enzyme preparation. The preparation method includes the following step:

[0021] (1) Ferment the phosphorus bacterial fertilizer at 36°C for 30 hours, mix the fermented liquid with the organic fertilizer, mix well in a mixer, then add the rest of the ingredients and stir as one, and send the well-mixed material components into the granulator During the process, the slow-release binder is sprayed to granulate, the granulated material is dried, and the sieved fine powder is ...

Embodiment 2

[0032] A growth-promoting slow-release fertilizer for reducing the nitrate content of leafy vegetables, made of the following raw materials in parts by weight: 310 parts of organic fertilizer, 250 parts of urea, 115 parts of superphosphate, 90 parts of potassium chloride, silicon calcium 58 parts of fertilizer, 35 parts of phosphorus bacterial fertilizer, 22 parts of fly ash, 19 parts of bacterial residue, 11 parts of biochar, 6 parts of micro-fertilizer, 38 parts of slow-release binder, and 0.5 part of mixed enzyme preparation. The preparation method includes the following step:

[0033] (1) Ferment the phosphorus bacterial fertilizer at 38°C for 33 hours, mix the fermented liquid with the organic fertilizer, mix well in a blender, then add the rest of the ingredients and stir as one, and send the well-mixed material components into the granulator During the process, the slow-release binder is sprayed to granulate, the granulated material is dried, and the sieved fine powder ...

Embodiment 3

[0044] A growth-promoting slow-release fertilizer for reducing the nitrate content of leafy vegetables, made of the following raw materials in parts by weight: 320 parts of organic fertilizer, 260 parts of urea, 120 parts of superphosphate, 95 parts of potassium chloride, silicon calcium 60 parts of fertilizer, 40 parts of phosphorus bacterial fertilizer, 25 parts of fly ash, 20 parts of bacterial residue, 12 parts of biochar, 8 parts of micro-fertilizer, 40 parts of slow-release binder, 0.6 part of mixed enzyme preparation, and its preparation method includes the following step:

[0045] (1) Ferment the phosphorus bacterial fertilizer at 40°C for 36 hours, mix the fermented liquid with the organic fertilizer, mix well in a blender, then add the rest of the ingredients and stir as one, and send the well-mixed material components into the granulator During the process, the slow-release binder is sprayed to granulate, the granulated material is dried, and the sieved fine powder ...

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Abstract

The invention relates to the technical field of development and utilization of agricultural crop fertilizer, and discloses growth promoting slow release fertilizer capable of reducing the nitrate content of leaf vegetables. According to the growth promoting slow release fertilizer disclosed by the invention, a relationship between the growth of crops and the utilization rate of fertilizer is researched, the nitrate content of the leaf vegetables is reduced, the utilization rate of the fertilizer is remarkably improved, the using amount of the fertilizer is reduced, absorption and utilization of the crops to beneficial components of nitrogen, phosphorus and potassium are remarkably promoted after the growth promoting slow release fertilizer prepared by the invention is applied, the nutrientcontent is increased, the contents of nitrogen and phosphorus are particularly and remarkably increased, required nutrients can be continuously provided for plants, balanced fertilization can be effectively completed, distribution of nutrients is realized according to needs, not only the resource of the fertilizer can be saved, but also the utilization efficiency of the nutrients can be improved,and basis is provided for agricultural production increment and income generation.

Description

technical field [0001] The invention belongs to the technical field of development and utilization of agricultural organic crop fertilizers, and in particular relates to a growth-promoting slow-release fertilizer for reducing the nitrate content of leafy vegetables. Background technique [0002] In a broad sense, slow and controlled release fertilizers refer to fertilizers whose nutrient release rate is slow and the release period is long, which can meet the needs of crop growth during the entire growth period of crops. But in a narrow sense, there are different definitions for slow-release fertilizers and controlled-release fertilizers. Slow-release fertilizers (SRFs), also known as long-acting fertilizers, mainly refer to fertilizers that are converted into effective plant nutrients at a slower rate than ordinary fertilizers after being applied to the soil. Its release rate, mode and duration cannot be well controlled, and are greatly affected by fertilization methods and...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05F17/00
CPCC05B1/02C05F17/00C05G3/00C05G5/30C05C9/00C05D1/02C05D3/00C05D3/02C05D5/00C05D9/00C05D9/02C05F3/00C05F5/00C05F11/08Y02P20/129Y02W30/40
Inventor 余安芹苏丹青
Owner 蚌埠市金牛湾农业科技发展有限公司