Special efficient compound fertilizer for chernozem

A compound fertilizer and calcic soil technology, applied in the direction of calcium fertilizer, inorganic fertilizer, nitrate fertilizer, etc., can solve the problems of wasting resources, agricultural production costs, affecting the absorption and utilization of phosphorus by plants, and reducing the utilization rate of fertilizers, etc., to achieve Improve fertilizer utilization efficiency and crop yield, significant synergistic and superimposed synergies, and high crop utilization efficiency

Inactive Publication Date: 2015-04-08
中化化肥有限公司氮肥工程技术研究中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current agricultural production of chernozem in Northeast China, common fertilizers have a short period of effectiveness, unbalanced nutrient supply, low nutrient effectiveness ratio of fertilizers applied to the soil, serious loss or ineffectiveness, and unbalanced nutrient supply, which is even more unscientific. It is a technical problem where the contradiction between supply and demand of nitrogen fertilizer and phosphorus fertilizer is more prominent
As a result, the amount of fertilization is too large, and the utilization rate of fertilizers decreases. At present, the overall utilization rate of nitrogen is only about 30%, and the loss of nitrogen volatilization, leaching, and surface runoff is relatively large. Most of the phosphorus in the soil is fixed by the soil and becomes invalid, seriously affecting the absorption and utilization of phosphorus by plant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of N-P 2 o 5 -K 2 O: 20-18-12 high-efficiency compound fertilizer for chernozem 1 ton. The special high-efficiency compound fertilizer for chernozem consists of synergistic slow-release urea and ammonium nitrogen fertilizer. Phosphate fertilizer, potash fertilizer, medium nutrient elements required by plants, micronutrient elements required by plants, and compound polyamino acid base composition.

[0023] Compound polyamino acid salt is composed of 50% sodium polyaspartate and 50% potassium γ-polyglutamate.

[0024] The nitrogen fertilizer is synergistic slow-release urea, and the release period is 120 days. The synergistic slow-release urea is in the form of solid powder with a nitrogen content of 46%, and 282kg of urea is required.

[0025] Phosphate fertilizer is 100% of pure nitrogen, and the dosage is expressed as P 2 o 5 Calculated, using diammonium phosphate as raw material, containing P 2 o 5 46%, 18% nitrogen, 391kg of diammonium phosphate ...

Embodiment 2

[0032] Preparation of N-P 2 o 5 -K 2 O: 15-15-15 chernozem special high-efficiency compound fertilizer 1 ton. The high-efficiency compound fertilizer for chernozem is composed of synergistic slow-release urea, ammonium nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, medium-nutrient elements and micronutrient elements required by plants, compound polyamino acids, and binders.

[0033]Compound polyamino acid is composed of 99.99% polyaspartic acid and 0.01% γ-polyglutamic acid.

[0034] The nitrogen fertilizer is synergistic slow-release urea, and the release period is 120 days. The synergistic slow-release urea is solid powder with a nitrogen content of 46%, and 200kg of urea is required.

[0035] Phosphate fertilizer is 100% of pure nitrogen, and the dosage is expressed as P 2 o 5 Calculated, using diammonium phosphate as raw material, containing P 2 o 5 46%, 18% nitrogen, 326kg of diammonium phosphate is required;

[0036] Potassium fertilizer is 10...

Embodiment 3

[0043] Preparation of N-P 2 o 5 -K 2 O: 12-18-15 chernozem special high-efficiency compound fertilizer 1 ton. The high-efficiency compound fertilizer for chernozem is composed of synergistic slow-release urea, phosphate fertilizer, potassium fertilizer, medium-nutrient elements required by plants, micronutrient elements required by plants, compound polyamino acids, and binders.

[0044] The compound polyamino acid is composed of 90% polyaspartic acid and 10% γ-polyglutamic acid.

[0045] The nitrogen fertilizer is synergistic slow-release urea, and the release period is 120 days. The synergistic slow-release urea is molten urine with a nitrogen content of 46%, and 261kg of urea is required.

[0046] Phosphate fertilizer is 150% of pure nitrogen, and the dosage is expressed as P 2 o 5 Calculated, using double superphosphate as raw material, containing P 2 o 5 43%, 418kg of superphosphate is required;

[0047] Potassium fertilizer is 125% of pure nitrogen, and the dosag...

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Abstract

The invention discloses a special efficient compound fertilizer for chernozem. The special efficient compound fertilizer consists of nitrogen, phosphorus, potassium, medium elements, trace element fertilizer raw materials, and composite polyamino acid and salts thereof. The special efficient compound fertilizer is suitable for supplying and supplementing nutrient elements needed by various crops and plants planted in the chernozem. The special efficient compound fertilizer disclosed by the invention is applied once as a base fertilizer, and fertilizer topdressing is not needed in a crop growth process. The produced fertilizer product has effects of remarkably controlling the loss of a nitrogen fertilizer in the chernozem, improving the effectiveness of the phosphorus fertilizer in the chernozem, gathering and activating medium and trace nutrient elements needed by the plants in the chernozem, strongly prompting the crops to absorb various nutrient elements in the chernozem in a balanced manner, greatly increasing the fertilizer utilization rate, increasing the crop yield and remarkably improving the crop quality.

Description

technical field [0001] The invention discloses a special high-efficiency compound fertilizer for chernozem, relates to a high-efficiency chemical fertilizer for chernozem, and belongs to the technical field of agricultural compound fertilizer production. Background technique [0002] In the current agricultural production of chernozem in Northeast China, common fertilizers have a short period of effectiveness, unbalanced nutrient supply, low nutrient effectiveness ratio of fertilizers applied to the soil, serious loss or ineffectiveness, and unbalanced nutrient supply, which is even more unscientific. It is a technical problem where the contradiction between the supply and demand of nitrogen fertilizer and phosphorus fertilizer is more prominent. As a result, the amount of fertilization is too large, and the utilization rate of fertilizers decreases. At present, the overall utilization rate of nitrogen is only about 30%, and the loss of nitrogen volatilization, leaching, and...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05C5/04C05G3/00C05G3/80C05D3/00C05D5/00C05D9/02
Inventor 任先顺李东旭于婷婷许平邱迪谢德全
Owner 中化化肥有限公司氮肥工程技术研究中心
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