High nitrogen compound fertilizer and preparation method thereof

Abstract

The invention relates to a high nitrogen compound fertilizer and a preparation method thereof. The high nitrogen compound fertilizer is prepared from, by weight, 5-10 parts of ammonium sulfate, 2-4 parts of ammonium chloride, 3-5 parts of ammonium bicarbonate, 5-10 parts of urea, 2-4 parts of calcium cyanamide, 5-7 parts of potassium magnesium fertilizer, 8-10 parts of plant ash, and 70-80 parts of straw fermentation substance. The high nitrogen compound fertilizer is prepared into granular fertilizer, wherein the granular fertilizer is divided into an inner layer and an outer layer, the outer layer comprises straw fermentation substance; ammonium sulfate, ammonium chloride, ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are located in the inner layer. The high nitrogen compound fertilizer can avoid the nutrient loss of the fertilizer due to irrigation, thereby ensuring the nutrients in cultivation, at the same time, avoiding the pollution of downstream water quality.

Description

technical field

[0001] The invention relates to the biological field, in particular to a high-nitrogen compound fertilizer and a preparation method thereof. Background technique

[0002] Vegetable production is a highly intensive planting system, and excessive application of fertilizers is a common phenomenon. Due to the high planting efficiency, vegetable farmers use super-high amounts of nitrogen and phosphorus fertilizers in order to pursue benefits. The average pure nutrient consumption of single-season crops is 569-2000kg / hm2, which is several times or even dozens of times that of ordinary field crops. Many studies have shown that long-term and large-scale application of nitrogen and phosphorus fertilizers will lead to excessive accumulation of nitrogen and phosphorus nutrients in the soil. Excessive soluble nutrients in vegetable field soil enter the environment through farmland surface runoff, drainage, and underground seepage, resulting in eutrophication of groundwa...

Examples

Embodiment 1

[0018] A high-nitrogen compound fertilizer, comprising: 5 parts by weight of ammonium sulfate, 2 parts of ammonium chloride, 5 parts of ammonium bicarbonate, 10 parts of urea, 2 parts of calcium cyanamide, 5 parts of potassium magnesium fertilizer, 10 parts of plant ash, and 80 parts of straw fermented products, the high-nitrogen compound fertilizer is made into granular fertilizer, wherein: the granular fertilizer is divided into an inner layer and an outer layer structure, the outer layer is straw fermented product, ammonium sulfate, ammonium chloride, Ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are all located in the inner layer.

[0019] A preparation method of high-nitrogen compound fertilizer, comprising the steps of:

[0020] Equipped with raw materials, the high-nitrogen compound fertilizer includes in parts by weight: 5 parts of ammonium sulfate, 2 parts of ammonium chloride, 5 parts of ammonium bicarbonate, 10 parts of ...

Embodiment 2

[0024] A high-nitrogen compound fertilizer, comprising: 8 parts by weight of ammonium sulfate, 3 parts of ammonium chloride, 4 parts of ammonium bicarbonate, 8 parts of urea, 3 parts of calcium cyanamide, 6 parts of potassium magnesium fertilizer, 9 parts of plant ash, and 75 parts of straw fermented product, the high-nitrogen compound fertilizer is made into granular fertilizer, wherein: the granular fertilizer is divided into inner layer and outer layer structure, the outer layer is straw fermented product, ammonium sulfate, ammonium chloride, Ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are all located in the inner layer.

[0025] A preparation method of high-nitrogen compound fertilizer, comprising the steps of:

[0026] Equipped with raw materials, the high-nitrogen compound fertilizer includes in parts by weight: 8 parts of ammonium sulfate, 3 parts of ammonium chloride, 4 parts of ammonium bicarbonate, 8 parts of urea, 3 pa...

Embodiment 3

[0030] A high-nitrogen compound fertilizer, comprising: 10 parts by weight of ammonium sulfate, 4 parts of ammonium chloride, 3 parts of ammonium bicarbonate, 5 parts of urea, 4 parts of calcium cyanamide, 7 parts of potassium and magnesium fertilizers, 8 parts of plant ash, and 70 parts of straw fermented product, the high-nitrogen compound fertilizer is made into granular fertilizer, wherein: the granular fertilizer is divided into an inner layer and an outer layer structure, the outer layer is straw fermented product, ammonium sulfate, ammonium chloride, Ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are all located in the inner layer.

[0031] A preparation method of high-nitrogen compound fertilizer, comprising the steps of:

[0032] Equipped with raw materials, the high-nitrogen compound fertilizer includes in parts by weight: 10 parts of ammonium sulfate, 4 parts of ammonium chloride, 3 parts of ammonium bicarbonate, 5 parts ...

technical field

[0001] The invention relates to the biological field, in particular to a high-nitrogen compound fertilizer and a preparation method thereof. Background technique

[0002] Vegetable production is a highly intensive planting system, and excessive application of fertilizers is a common phenomenon. Due to the high planting efficiency, vegetable farmers use super-high amounts of nitrogen and phosphorus fertilizers in order to pursue benefits. The average pure nutrient consumption of single-season crops is 569-2000kg / hm2, which is several times or even dozens of times that of ordinary field crops. Many studies have shown that long-term and large-scale application of nitrogen and phosphorus fertilizers will lead to excessive accumulation of nitrogen and phosphorus nutrients in the soil. Excessive soluble nutrients in vegetable field soil enter the environment through farmland surface runoff, drainage, and underground seepage, resulting in eutrophication of groundwa...

Examples

Embodiment 1

[0018] A high-nitrogen compound fertilizer, comprising: 5 parts by weight of ammonium sulfate, 2 parts of ammonium chloride, 5 parts of ammonium bicarbonate, 10 parts of urea, 2 parts of calcium cyanamide, 5 parts of potassium magnesium fertilizer, 10 parts of plant ash, and 80 parts of straw fermented products, the high-nitrogen compound fertilizer is made into granular fertilizer, wherein: the granular fertilizer is divided into an inner layer and an outer layer structure, the outer layer is straw fermented product, ammonium sulfate, ammonium chloride, Ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are all located in the inner layer.

[0019] A preparation method of high-nitrogen compound fertilizer, comprising the steps of:

[0020] Equipped with raw materials, the high-nitrogen compound fertilizer includes in parts by weight: 5 parts of ammonium sulfate, 2 parts of ammonium chloride, 5 parts of ammonium bicarbonate, 10 parts of ...

Embodiment 2

[0024] A high-nitrogen compound fertilizer, comprising: 8 parts by weight of ammonium sulfate, 3 parts of ammonium chloride, 4 parts of ammonium bicarbonate, 8 parts of urea, 3 parts of calcium cyanamide, 6 parts of potassium magnesium fertilizer, 9 parts of plant ash, and 75 parts of straw fermented product, the high-nitrogen compound fertilizer is made into granular fertilizer, wherein: the granular fertilizer is divided into inner layer and outer layer structure, the outer layer is straw fermented product, ammonium sulfate, ammonium chloride, Ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are all located in the inner layer.

[0025] A preparation method of high-nitrogen compound fertilizer, comprising the steps of:

[0026] Equipped with raw materials, the high-nitrogen compound fertilizer includes in parts by weight: 8 parts of ammonium sulfate, 3 parts of ammonium chloride, 4 parts of ammonium bicarbonate, 8 parts of urea, 3 pa...

Embodiment 3

[0030] A high-nitrogen compound fertilizer, comprising: 10 parts by weight of ammonium sulfate, 4 parts of ammonium chloride, 3 parts of ammonium bicarbonate, 5 parts of urea, 4 parts of calcium cyanamide, 7 parts of potassium and magnesium fertilizers, 8 parts of plant ash, and 70 parts of straw fermented product, the high-nitrogen compound fertilizer is made into granular fertilizer, wherein: the granular fertilizer is divided into an inner layer and an outer layer structure, the outer layer is straw fermented product, ammonium sulfate, ammonium chloride, Ammonium bicarbonate, urea, calcium cyanamide, potassium magnesium fertilizer and plant ash are all located in the inner layer.

[0031] A preparation method of high-nitrogen compound fertilizer, comprising the steps of:

[0032] Equipped with raw materials, the high-nitrogen compound fertilizer includes in parts by weight: 10 parts of ammonium sulfate, 4 parts of ammonium chloride, 3 parts of ammonium bicarbonate, 5 parts ...

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