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Special slow/controlled release compound fertilizer for capsicum, and preparation method thereof

A technology of special fertilizer and pepper, which is applied in the field of slow-control and slow-release compound fertilizer and its preparation, can solve the problems of digestive tract canceration, environmental pollution, air pollution, etc., reduce the amount of use and fertilization times, reduce environmental pollution, reduce The effect of production costs

Active Publication Date: 2015-04-08
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the fertilizers used on peppers in the market are mainly traditional fertilizer varieties, such as elemental urea, superphosphate, potassium chloride, and nitrogen, phosphorus, and potassium ternary compound fertilizers, etc., which generally do not contain medium and trace elements. It can give full play to the yield-increasing effect of fertilizers. Moreover, due to the long growth period or harvest period of peppers, repeated topdressing is required, which is time-consuming and labor-intensive, and increases production costs.
[0004] In addition, there is a problem that the amount of fertilizer used in vegetable fertilization is too large, and the utilization rate of fertilizer is relatively low.
The heavy nitrogen phenomenon is very common in pepper production, and the utilization rate of nitrogen fertilizer is less than 30%. The unused nitrogen fertilizer or leaching into the water body causes eutrophication of the water body, or volatilizes to cause air pollution, or deposits in the soil, causing soil nitric acid Salt, nitrite enrichment
Excessive fertilization not only reduces the economic effect of farmers, but also brings environmental pollution, and long-term consumption of foods high in nitrate and nitrite will affect human health through the food chain, and in severe cases cause digestive tract cancer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing a slow-controlled / released pepper compound fertilizer, in terms of weight percentages of urea 24%-28%, monoammonium phosphate 18%-20%, potassium sulfate 35%-38%, and magnesium sulfate 0.5%- 1.0%, boric acid 0.015%~0.020%, zinc sulfate 0.03~0.05%, rapeseed meal 8%~12%, chicken manure 5%~8%, bentonite 2%~3%, n-butyl thiophosphate triamine or Hydroquinone 0.10%~0.15%, dicyandiamide 0.25%~0.30% as raw materials, proceed as follows:

[0028] a. Preparation of organic compound: mix rapeseed meal and chicken manure with the particle size of 0.3~0.4mm, add 1%~2% urea, stir evenly, and then add the concentration of 2~3mol / l Of equal volume of H 2 SO 4 , H 3 PO 4 And HNO 3 The composition of the rapid decomposing agent, the mass ratio of the organic mixture of rapeseed meal, chicken manure and urea to the decomposing agent is 1:0.4-0.5, fully stirred and reacted to obtain a decomposed organic compound;

[0029] b. Preparation of the inorganic composite: take t...

Embodiment 2

[0034] A preparation method of slow-controlled / released pepper compound fertilizer, which comprises 28% urea, 18% ammonium phosphate, 35% potassium sulfate, 0.93% magnesium sulfate, 0.02% boric acid, 0.05% zinc sulfate, vegetable Seed meal 10%, chicken manure 5.05%, bentonite 2.5%, hydroquinone 0.15%, dicyandiamide 0.30% as raw materials, proceed as follows:

[0035] a. Preparation of organic compound: mix rapeseed meal, chicken manure, and soybean meal with the particle diameters of 0.1 to 0.25 mm, add 1% to 2% urea, stir evenly, and then add a concentration of 3mol / l Of equal volume of H 2 SO 4 , H 3 PO 4 And HNO 3 The composition of the rapid decomposing agent, the mass ratio of the organic mixture of the rapeseed meal, chicken manure, soybean meal and urea to the decomposing agent is 1:0.5, fully agitated, and acting for 72 hours at 50°C-60°C to obtain Decomposed organic compound;

[0036] b. The preparation of the inorganic composite: take the amount of ammonium phosphate, ...

Embodiment 3

[0040] A slow-controlled / released hot pepper compound fertilizer, urea 24%, monoammonium phosphate 20%, potassium sulfate 38%, magnesium sulfate 0.5%, boric acid 0.015%, zinc sulfate 0.03%, rapeseed meal in weight percentage 9%, chicken manure 6.105%, bentonite 2%, n-butyl thiophosphate triamine 0.10%, dicyandiamide 0.25% as raw materials, prepared according to the preparation method of Example 1.

[0041] The yield of pepper with special slow-control / release compound fertilizer is 2879.3~3222.6 kg / 667m 2 , The yield increased by 13.18%~27.11%; the vitamin C content of peppers with special slow-control / release compound fertilizer was 34.31~35.03 mg / 100g, an increase of 7.90%~10.18% compared with the control; those with special slow-control / release compound fertilizer The amino acid content of pepper is 967.5~1071.6 mg / 100g, which is 4.2%~15.41% higher than the control; the reducing sugar content of peppers with special slow-control / release compound fertilizer is 0.380%~0.397%, wh...

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Abstract

The invention provides a special slow / controlled release fertilizer for capsicum, which is characterized by comprising 0.10%-0.15% of n-butyl thiophosphate triamine or hydroquinone and 0.25%-0.30% of dicyandiamide, calculated by mass percentage. The invention combines nitrogen, phosphorus, potassium, magnesium, boron, zinc and other large, medium and trace element fertilizers with high-quality, decomposed rapeseed meal, chicken manure and other organic fertilizers, and adds urease inhibitors and nitrification inhibitors to mix and prepare , can have a slow-release effect in the soil, rich in various nutrient elements required for the growth of peppers, can meet the nutrient needs of different growth and development stages of peppers for a long time, and effectively increase the yield of peppers.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a slow-control slow-release compound fertilizer specially used for peppers and a preparation method thereof. Background technique [0002] chili( Capsicum annum L.) is an annual or perennial herbaceous plant that can bear spicy or sweet berries in the Capsicum genus of the Solanaceae family. my country is the country with the largest planting area of ​​pepper in the world, and it is planted all over the country. The annual planting area reaches 1.33 million hectares, accounting for the second place in my country's vegetable planting area. Ripe green fruits can be fried and made into kimchi. Ripe red fruits can be salted and marinated in sauce, or dried into dried chili and made into chili powder. It is a fresh vegetable and condiment that people like to eat, especially in Sichuan, Guizhou, Southwest China. People in Yunnan, Gansu and Shaanxi in the northwest, and Hunan and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
Inventor 徐卫红王宏信陈贵青王慧先刘吉振王彬
Owner SOUTHWEST UNIV
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