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

A special fertilizer and pepper technology, applied in the field of slow-controlled slow-release compound fertilizer and its preparation, can solve the problems of digestive tract canceration, environmental pollution, air pollution, etc. The effect of production costs

Active Publication Date: 2014-01-01
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

[0028] A preparation method of pepper slow-control / release compound fertilizer, comprising 24% to 28% of urea, 18% to 20% of monoammonium phosphate, 35% to 38% of potassium sulfate, and 0.5% to magnesium sulfate in weight percent 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 triamine thiophosphate or 0.10% to 0.15% of hydroquinone and 0.25% to 0.30% of dicyandiamide are used as raw materials, and the steps are as follows:

[0029] 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 2-3mol / l An equal volume of H 2 SO 4 、H 3 PO 4 and HNO 3 Composed of a fast decomposer, the mass ratio of the organic mixture of rapeseed meal, chicken manure and urea to the decomposer is 1:0.4-0.5, fully stirred and reacted to obtain a decomposed organic compound;

[0030] b. Preparation of inorganic composites: M...

Embodiment 2

[0035] A preparation method of capsicum slow-control / release compound fertilizer, comprising 28% urea, 18% ammonium phosphate, 35% potassium sulfate, 0.93% magnesium sulfate, 0.02% boric acid, 0.05% zinc sulfate, vegetable 10% of seed meal, 5.05% of chicken manure, 2.5% of bentonite, 0.15% of hydroquinone, and 0.30% of dicyandiamide are used as raw materials, and the following steps are carried out:

[0036] a. Preparation of organic compound: mix rapeseed meal, chicken manure and soybean meal with particle size of 0.1-0.25 mm, add 1%-2% urea, stir evenly, and then add urea at a concentration of 3mol / l An equal volume of H 2 SO 4 、H 3 PO 4 and HNO 3 The composition of the rapid decomposer, the mass ratio of the organic mixture of rapeseed meal, chicken manure, soybean meal and urea to the decomposer is 1:0.5, fully stirred evenly, and acted at 50°C-60°C for 72 hours to obtain decomposed organic compounds;

[0037] b. Preparation of inorganic composites: Mix the amount ...

Embodiment 3

[0041] A pepper slow-control / release compound fertilizer, comprising 24% urea, 20% monoammonium phosphate, 38% potassium sulfate, 0.5% magnesium sulfate, 0.015% boric acid, 0.03% zinc sulfate, and rapeseed meal in weight percent 9%, chicken manure 6.105%, bentonite 2%, n-butyl triamine thiophosphate 0.10%, dicyandiamide 0.25% are raw materials, prepared by the preparation method of Example 1.

[0042] The yield of pepper applied with special slow-control / release compound fertilizer is 2879.3~3222.6 kg / 667m 2 , yield increased by 13.18%~27.11%; the vitamin C content of peppers using special slow-control / release compound fertilizers was 34.31-35.03 mg / 100g, which was 7.90%-10.18% higher than that of the control; The amino acid content of capsicum was 967.5~1071.6 mg / 100g, an increase of 4.2%~15.41% compared with the control; the reducing sugar content of capsicum applied with special slow-control / release compound fertilizer was 0.380%~0.397%, an increase of 5.8%~ 10.5%; after ...

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Abstract

The invention provides a special slow / controlled release fertilizer for capsicum. The special slow / controlled release fertilizer for capsicum is characterized in that the special slow / controlled release fertilizer for capsicum comprises, by mass, 0.10-0.15% of N-(n-Butyl)thiophosphoric triamide or quinhydrone and 0.25-0.30% of dicyandiamide. A preparation method of the special slow / controlled release fertilizer for capsicum comprises the following steps: combining fertilizers of macro, medium and trace elements of N, P, K, Mg, B, Zn and the like with organic fertilizers comprising high-quality decomposed rapeseed meal, chicken manure and the like, adding a urease inhibitor and a nitration inhibitor, and mixing. The special slow / controlled release fertilizer for capsicum has a slow release effect in soil, is rich in all nutritional elements specially required by the growth of capsicum, can effectively satisfy the nutrient needs of the capsicum of different growth stages, and can effectively improve the capsicum output.

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 Applications(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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