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Nitro-sulfenyl calcium-magnesium compound fertilizer, preparation method thereof and vegetable cultivation method

A cultivation method and nitrosulfur-based technology are applied in the field of nitrosulfur-based calcium-magnesium compound fertilizer and preparation thereof, and in the field of vegetable cultivation, and can solve the problems of crop quality and yield decline, crop fertilization effect decline, soil acidification and hardening, and the like, Achieve flexible application methods, improve quality and yield, and improve soil compaction.

Pending Publication Date: 2021-04-13
SHENZHEN BATIAN ECOTYPIC ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the nitrosulfur-based calcium-magnesium fertilizer containing ammonium nitrate can make the fertilizer effect of calcium-magnesium fertilizer faster, its durability is poor, resulting in a decrease in its fertilizer effect on crops, a decrease in the quality and yield of crops, and it is easy to absorb moisture and agglomerate At the same time, it is easy to explode during transportation; although the nitrosulfur-based calcium magnesium fertilizer containing ammonium sulfate has low hygroscopicity and is not easy to agglomerate, it is a physiologically acidic fertilizer, which is easy to cause soil acidification and compaction, which reduces the utilization rate of fertilizers and soil fertility. Reduced, thereby affecting root growth, resulting in reduced crop quality and yield

Method used

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  • Nitro-sulfenyl calcium-magnesium compound fertilizer, preparation method thereof and vegetable cultivation method
  • Nitro-sulfenyl calcium-magnesium compound fertilizer, preparation method thereof and vegetable cultivation method
  • Nitro-sulfenyl calcium-magnesium compound fertilizer, preparation method thereof and vegetable cultivation method

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preparation example Construction

[0055] One embodiment of the present invention also provides a method for preparing a nitrosulfur-based calcium-magnesium compound fertilizer, which includes the following step S10.

[0056] Step S10 , according to the ratio of raw materials for the preparation of the nitrosulfur-based calcium-magnesium compound fertilizer, heating and melting the ammonium nitrate and the monoammonium phosphate synergist to obtain a melt.

[0057] In some of these embodiments, the temperature of the heating and melting step in step S10 is 140°C-170°C.

[0058] Step S20, mixing the melt obtained in step S10, potassium sulfate and liquid calcium-magnesium fertilizer to obtain a nitrosulfur-based calcium-magnesium compound fertilizer.

[0059] After the above melt, potassium sulfate and liquid calcium-magnesium fertilizer are mixed, a uniformly mixed material is formed, which is subjected to drum granulation.

[0060] In some of the embodiments, the above step S20 further includes the steps of c...

Embodiment 1

[0070] 1) Provide nitrosulfur-based calcium magnesium compound fertilizer: with 28 parts of ammonium nitrate phosphorus and 22 parts of monoammonium phosphate, mix uniformly after metering, heat and melt to obtain a melt, then add 35 parts of potassium sulfate in the melt, 10 parts of liquid calcium-magnesium fertilizer, 3 parts of potassium humate and 2 parts of dicyandiamide were stirred and mixed evenly, then cooled and granulated to obtain nitrosulfur-based calcium-magnesium compound fertilizer.

[0071] 2) Determining the promotion effect of nitrosulfur-based calcium magnesium compound fertilizer on crop leaves.

[0072] Select "Quanshengda" Shanghai Qing, live seedlings, transplant when 3-4 true leaves, plant 3 trees in each pot, use the nitrosulfur-based calcium magnesium compound fertilizer in step 1) to fertilize, and fertilize at 15kg per mu each time. Fertilization was applied 4 times in total 1 week after planting, at the seedling stage, at the vigorous stage, and ...

Embodiment 2

[0084] Provide nitrosulfur-based calcium magnesium compound fertilizer: 28 parts of ammonium nitrate phosphorus and 20 parts of monoammonium phosphate are measured and mixed uniformly, heated and melted to obtain a melt, and then 35 parts of potassium sulfate and 12 parts of potassium sulfate are added to the melt Liquid calcium-magnesium fertilizer, 3 parts of potassium humate, 2 parts of dicyandiamide, stir and mix evenly, cool the melt, granulate, and obtain nitrosulfur-based calcium-magnesium compound fertilizer.

[0085] All the other steps and conditions are the same as in Example 1.

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Abstract

The invention relates to a nitro-sulfenyl calcium-magnesium compound fertilizer, a preparation method thereof and a vegetable cultivation method. The nitro-sulfenyl calcium-magnesium compound fertilizer is prepared from the following raw materials in parts by mass: 20 to 30 parts of nitro-ammonium phosphate, 20 to 24 parts of monoammonium phosphate, 25 to 40 parts of potassium sulfate, 10 to 25 parts of liquid calcium-magnesium fertilizer and 2 to 5 parts of a synergist. The nitro-sulfenyl calcium-magnesium compound fertilizer adopts a specific material ratio, all the preparation raw materials are matched to achieve a synergistic effect, the quick-acting property is high, the fertilizer efficiency is stable, the fertility increasing effect is good, the calcium-magnesium content of crops can be effectively supplemented, the stress resistance of the crops can be effectively improved, and therefore the quality and yield of the crops are improved.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a nitrosulfur-based calcium-magnesium compound fertilizer, a preparation method thereof, and a vegetable cultivation method. Background technique [0002] Calcium and magnesium are essential elements for crop growth. The lack of calcium or magnesium will significantly affect the assimilation rate and transfer rate of mineral elements in various organs of the crop, thereby adversely affecting the growth of crops, resulting in slow growth of crops. Low yield. Generally, calcium and magnesium fertilizers are used to supplement the calcium or magnesium elements of crops to increase the strength of cell walls, thereby improving the stress resistance of crops, reducing damage by diseases and insect pests, and promoting root growth, reducing root rot and delaying root aging. At the same time, calcium and magnesium fertilizers It can adjust the acidity and alkalinity of the soil a...

Claims

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Application Information

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IPC IPC(8): C05G3/80C05G3/90A01C21/00
CPCC05G3/80C05G3/90C05B7/00A01C21/00C05C1/00C05D1/02C05D3/00C05D5/00Y02P60/21
Inventor 史海莉杨勇杨凤英陈贵有
Owner SHENZHEN BATIAN ECOTYPIC ENG
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