Magnetic organic fertilizer containing sodium alginate and with excellent moisture-preservation and fertilizer-conservation performance and preparation method thereof

A technology of sodium alginate, water and fertilizer retention, applied in the agricultural field, can solve problems such as single function, and achieve the effects of improving quality, excellent water and fertilizer retention, and improving agronomic traits

Inactive Publication Date: 2017-11-10
安徽奥利休闲农业发展有限公司
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Problems solved by technology

At present, the role of magnetic fertilizers is relatively simple. If a fertilizer with both magnetic prop...

Method used

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Embodiment Construction

[0017] The magnetic organic fertilizer containing sodium alginate, which is excellent in water and fertilizer retention of the present embodiment, is prepared by the following steps:

[0018] (1) Add hydroxylamine hydrochloride to isopropanol, mix and stir evenly to obtain hydroxylamine hydrochloride-isopropanol solution; add sodium hydroxide to isopropanol, mix and stir evenly to obtain sodium hydroxide-isopropanol solution ; Under stirring conditions, the sodium hydroxide-isopropanol solution is added dropwise to the hydroxylamine hydrochloride-isopropanol solution until the pH of the system is neutral to obtain a mixed solution for subsequent use;

[0019] (2) Add sodium alginate and sodium hydroxide to isopropanol, add ethyl chloroacetate, stir at room temperature for 1.5h, then raise the temperature to 80°C, stir with constant temperature magnetic force for 6h, lower the temperature to 35°C, and add step by drop (1) The resulting mixture was magnetically stirred at room t...

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Abstract

Disclosed is magnetic organic fertilizer containing sodium alginate and with excellent moisture-preservation and fertilizer-conservation performance. The fertilizer is characterized in that firstly, a neutral mixed solution with sodium hydroxide, hydroxylammonium chloride and isopropyl alcohol is prepared; secondly, active hydroxyl in the sodium alginate reacts with ethyl chloroacetate to modify the sodium alginate; thirdly, magnetic particles are prepared, and ternary grafting is conducted on the magnetic particles with the sodium alginate, acrylic acid and starch; finally, the magnetic organic fertilizer containing the sodium alginate and with the excellent moisture-preservation and fertilizer-conservation performance is obtained through mixing and granulation. The organic fertilizer is excellent in moisture-preservation and fertilizer-conservation performance, comprehensive in nutrition and magnetic, the magnetism can increase the utilization rate of nutrients to achieve a significant yield-increasing effect, and the organic fertilizer is suitable for crops such as grains, vegetables, fruit and grass.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to a sodium alginate-containing magnetic organic fertilizer excellent in water and fertilizer retention and a preparation method thereof. Background technique [0002] Magnetic fertilizer is a new kind of fertilizer. Due to the effects of magnetobiology, magnetic soil science and magnetochemistry, magnetic fertilizer can significantly improve nutrient utilization rate and nutrient return rate, and can significantly improve the agronomic traits of crops, increase crop yield and quality, And it is beneficial to improving the soil, and at the same time, the production cost of the fertilizer itself is obviously reduced. Compared with other fertilizers with equal nutrients, the magnetic fertilizer has obvious advantages. At present, the role of magnetic fertilizers is relatively simple. If a fertilizer with both magnetic properties and excellent fertilizer and water retention prop...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05C9/00C05D5/00C05D9/02C05F3/00
Inventor 孔祥玉
Owner 安徽奥利休闲农业发展有限公司
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