Nitrogen fertilizer synergist and application thereof

Abstract

The invention provides a nitrogen fertilizer synergist. Every 100 parts of the nitrogen fertilizer synergist is prepared from, by weight, 94-98 parts of biochar, 1.0-3 parts of a urease inhibitor and 1.0-3 parts of a nitrification inhibitor. The raw materials are put into a stirrer, full stirring and even mixing are performed, the mixed materials are subpackaged in bags, and then the nitrogen fertilizer synergist is obtained. The nitrogen fertilizer synergist is suitable for producing long-lasting nitrogen fertilizer by taking urea or ammonium nitrogen fertilizer as the raw materials and can be applied to various soil along with the urea or ammonium nitrogen fertilizer, effectively prolong the fertilizer efficiency period of the urea or ammonium nitrogen fertilizer to 100-120 days, significantly increase the utilization rate of fertilizer nutrients, improve the soil, condition plant growth, increase the crop yield and improve the crop quality.

Description

technical field

[0001] The invention belongs to the technical field of fertilizer additives, in particular to a nitrogen fertilizer synergist and its application. Background technique

[0002] Due to factors such as volatilization, leaching and soil fixation, the utilization rate of traditional chemical fertilizers, especially nitrogen fertilizers, has been low. The utilization rate of nitrogen fertilizers in the current season is only 30% to 40%. The low utilization rate of nitrogen fertilizer not only has poor effect on increasing the yield and quality of crops, but also has low economic benefits, and may also cause a series of ecological and environmental problems. Through industrial means, the production of nitrogen fertilizer synergists characterized by high utilization rate and high environmental safety is of great significance for promoting the development of my country's fertilizer industry and pollution-free agriculture.

[0003] Biochar contains phenolic hydroxyl ...

Examples

Embodiment 1

[0027] Embodiment 1 (by weight)

[0028] Mix 0.97kg of biochar crushed to ≤60 mesh (raw material is corn stalk) (with a water content of about 5%), 0.015kg of urease inhibitor NBPT (≤60 mesh), and 0.015kg of nitrification inhibitor DMPP (≤60 mesh) into 1kg The synergist can be administered with 4kg-8kg urea.

[0029] Application examples in 2012

[0030] The ratio of nitrogen fertilizer synergist to urea is 1:8.

[0031]The experiment was arranged in a local typical soil (brown soil) area in Liaoning. Thirty PVC pots with a diameter of 25 cm and a depth of 40 cm were buried in the field. Five treatments were set up in the experiment, namely: 1.U-conventional urea, 2.UB-urea with biochar (8:1), 3.UBN-urea with biochar combined with urease inhibitor NBPT (8:1), 4. .UBD-urea added biochar combined with nitrification inhibitor DMPP (8:1) and 5.UBND-urea added nitrogen fertilizer synergist (biochar combined with urease inhibitor NBPT+nitrification inhibitor DMPP) (urea:UBND=8:1...

Embodiment 2

[0035] Embodiment 2 (by weight)

[0036] Mix 0.98kg of biochar crushed to ≤60 mesh (raw material is corn stalk) (water content about 5%), 0.01kg of urease inhibitor NBPT (≤60 mesh), 0.01kg of nitrification inhibitor DMPP (≤60 mesh), and pack It is 1kg of nitrogen fertilizer synergist, which can be applied with 4kg-8kg of urea.

[0037] Application examples in 2012

[0038] The ratio of nitrogen fertilizer synergist to urea is 1:8.

[0039] The experiment was arranged in a local typical soil (brown soil) area in Liaoning. Thirty PVC pots with a diameter of 25 cm and a depth of 40 cm were buried in the field. Five treatments were set up in the experiment, and each treatment was set for 6 repetitions. The test treatments were: 1.U-conventional urea, 2.UB-urea with biochar added (weight ratio 8:1), 3.UBN-urea with biochar combined with urease inhibitor NBPT (weight ratio 8:1), 4. .UBD-urea added biochar combined with nitrification inhibitor DMPP (weight ratio 8:1) and 5.UBND-u...

technical field

[0001] The invention belongs to the technical field of fertilizer additives, in particular to a nitrogen fertilizer synergist and its application. Background technique

[0002] Due to factors such as volatilization, leaching and soil fixation, the utilization rate of traditional chemical fertilizers, especially nitrogen fertilizers, has been low. The utilization rate of nitrogen fertilizers in the current season is only 30% to 40%. The low utilization rate of nitrogen fertilizer not only has poor effect on increasing the yield and quality of crops, but also has low economic benefits, and may also cause a series of ecological and environmental problems. Through industrial means, the production of nitrogen fertilizer synergists characterized by high utilization rate and high environmental safety is of great significance for promoting the development of my country's fertilizer industry and pollution-free agriculture.

[0003] Biochar contains phenolic hydroxyl ...

Examples

Embodiment 1

[0027] Embodiment 1 (by weight)

[0028] Mix 0.97kg of biochar crushed to ≤60 mesh (raw material is corn stalk) (with a water content of about 5%), 0.015kg of urease inhibitor NBPT (≤60 mesh), and 0.015kg of nitrification inhibitor DMPP (≤60 mesh) into 1kg The synergist can be administered with 4kg-8kg urea.

[0029] Application examples in 2012

[0030] The ratio of nitrogen fertilizer synergist to urea is 1:8.

[0031]The experiment was arranged in a local typical soil (brown soil) area in Liaoning. Thirty PVC pots with a diameter of 25 cm and a depth of 40 cm were buried in the field. Five treatments were set up in the experiment, namely: 1.U-conventional urea, 2.UB-urea with biochar (8:1), 3.UBN-urea with biochar combined with urease inhibitor NBPT (8:1), 4. .UBD-urea added biochar combined with nitrification inhibitor DMPP (8:1) and 5.UBND-urea added nitrogen fertilizer synergist (biochar combined with urease inhibitor NBPT+nitrification inhibitor DMPP) (urea:UBND=8:1...

Embodiment 2

[0035] Embodiment 2 (by weight)

[0036] Mix 0.98kg of biochar crushed to ≤60 mesh (raw material is corn stalk) (water content about 5%), 0.01kg of urease inhibitor NBPT (≤60 mesh), 0.01kg of nitrification inhibitor DMPP (≤60 mesh), and pack It is 1kg of nitrogen fertilizer synergist, which can be applied with 4kg-8kg of urea.

[0037] Application examples in 2012

[0038] The ratio of nitrogen fertilizer synergist to urea is 1:8.

[0039] The experiment was arranged in a local typical soil (brown soil) area in Liaoning. Thirty PVC pots with a diameter of 25 cm and a depth of 40 cm were buried in the field. Five treatments were set up in the experiment, and each treatment was set for 6 repetitions. The test treatments were: 1.U-conventional urea, 2.UB-urea with biochar added (weight ratio 8:1), 3.UBN-urea with biochar combined with urease inhibitor NBPT (weight ratio 8:1), 4. .UBD-urea added biochar combined with nitrification inhibitor DMPP (weight ratio 8:1) and 5.UBND-u...