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Bag-shaped controlled-release fertilizer special for apples and preparation method thereof

A controlled-release fertilizer and apple technology, which is applied in the field of bag-type controlled-release fertilizer for apples and its preparation, can solve the problem of high production equipment and production technology requirements, prone to bitter pox and water core disease, and complicated production process of coated urea and other problems, to avoid fruit bitter pox and water core disease, low requirements for production equipment and production technology, and save labor

Inactive Publication Date: 2017-02-22
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the disclosed controlled-release fertilizer of patent CN100429187C (sulfur, resin-coated apple special-purpose controlled-release fertilizer and manufacturing method thereof), this fertilizer is mainly mixed by coated urea, diammonium phosphate, potassium sulfate, zinc sulfate and borax, because Calcium is easy to form precipitation when mixed with sulfate and diammonium phosphate. Therefore, there is no calcium element in the patent CN100429187C fertilizer, and calcium is very important for the development of apple fruit. Insufficient calcium will lead to a decrease in fruit hardness, and prone to bitter pox and water core. Physical illness
In addition, the production process of coated urea is relatively complicated, with high requirements for production equipment and production technology, high investment and product prices, and it is difficult for small enterprises or family farms to meet their production requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Execute according to the following steps:

[0023] (1) Make a slit-type triplet fertilizer controlled-release bag, which is composed of three slit bags with a length of 150mm and a width of 70mm. Each bag body is cut in rows. There are long slits with a long side of 1.5mm and a short side of 0.15mm; the total area of ​​long slits accounts for 0.8% of the total area of ​​the slit bag for high-density slit bags, and for 0.4% for medium-density bags Slit bags, accounting for 0.2%, are low-density slit bags, which are located between high-density slit bags and medium-density slit bags.

[0024] (2) Take by weighing 370kg urea, 150kg potassium sulfate compound fertilizer, 375kg potassium sulfate, 100kg diammonium phosphate, 3kg zinc sulfate, 2kg borax, and mix them into the first group of calcium-free fertilizers; then weigh 350kg urea, 170kg potassium sulfate Compound fertilizer, 380kg potassium sulfate, 100kg diammonium phosphate are mixed into the second gr...

Embodiment 2

[0027] Embodiment 2: Execute according to the following steps:

[0028] (1) Make a slit-type triplet fertilizer controlled-release bag, which is composed of three slit bags with a length of 120mm and a width of 60mm. Each bag body is cut in rows. There are long strip slits with a long side of 1.0mm and a short side of 0.2mm; the total area of ​​long strip slits accounts for 0.9% of the slit bag body area for high-density slit bags, and for 0.5% for medium-density slit bags Slit bags, accounting for 0.2%, are low-density slit bags, which are located between high-density slit bags and medium-density slit bags.

[0029] (2) Take by weighing 340kg urea, 150kg potassium sulfate compound fertilizer, 360kg potassium sulfate, 100kg diammonium phosphate, 3kg zinc sulfate, 2kg borax, and mix them into calcium-free fertilizer; The mass percent contents of diphosphorus and potassium oxide are both 17%.

[0030] (3) Get a slit type triplex fertilizer controlled-release bag made by step (...

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Abstract

The invention discloses a bag-shaped controlled-release fertilizer special for apples and a preparation method thereof. The bag-shaped controlled-release fertilizer and the preparation method are characterized in that calcium-containing fertilizer is put into a medium-density slit bag of a slit type triplet fertilizer controlled-release bag, meanwhile, two sets of calcium-free fertilizer of specific formulas are put into the other two slit bags of the controlled-release bag correspondingly, and then openings of the bags are sealed after the fertilizer is put into the bags; the slit type triplet fertilizer controlled-release bag is formed by connecting the three slit bags of different slit densities; the low-density slit bag is located in the middle, and strip-shaped slits which are 1-2 mm long and 0.1-0.3 mm wide are distributed in a bag body of each bag in rows. The fertilizer is long is nutrient controlled release time. The fertilizer formulas can be finely and easily adjusted at any time. The requirement of apple trees for nutrients can be pertinently met. The fruit firmness can be improved. The utilization rate of the fertilizer can also be increased. Environmental pollution is reduced. Labor is saved. Meanwhile, the production process is very simple. The equipment and technical requirements are low. The fertilizer is more suitable for production of family farms and small enterprises.

Description

[0001] (1) Technical field [0002] The invention relates to a bag-type controlled-release fertilizer special for apples and a preparation method thereof, belonging to the technical field of fertilizer slow / control. [0003] (2) Background technology [0004] Controlled-release fertilizers can meet the nutrient needs of plants in different development stages by controlling the release rate and period of nutrients. The application of controlled-release fertilizers can reduce the amount of chemical fertilizers and nutrient loss, improve fertilizer utilization, reduce the pollution of chemical fertilizers to the environment, and reduce The frequency of fertilization, labor saving, etc. At present, controlled-release fertilizers control the release of fertilizer nutrients, such as sulfur Coated urea, urea-formaldehyde compound, bag-controlled slow-release fertilizer, etc. [0005] Since the nutrient absorption curves of different crops are different, in order to meet the individu...

Claims

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Application Information

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IPC IPC(8): B65D33/00B65D30/10B65D33/36C05G3/00C05G1/00A01C15/00
CPCA01C15/00B65D31/00B65D33/00B65D75/58C05B7/00C05G1/00C05C9/00C05D1/02C05D9/00C05D9/02Y02P60/21
Inventor 杨洪强郝文强冯丰黄萍纪拓
Owner SHANDONG AGRICULTURAL UNIVERSITY
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