Special-purpose control-release fertilizer for ornamental plant cedar and preparation method thereof

A technology for controlled-release fertilizer and cedar, which is applied to the field of special controlled-release fertilizer for ornamental plant cedar and its preparation, can solve problems that have not yet been discovered, and achieve the effects of reducing the number of fertilizations, stabilizing nutrient supply, and improving fertilizer utilization.

Active Publication Date: 2009-04-29
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: Cedar-specific controlled-release fertilizer, total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide are respectively 23%, 9%, and 9%, in mass percent. The raw material components are as follows:

[0046] Sulfur coated urea 150kg

[0047] 6% thermoplastic resin coated urea 50kg

[0048] 7% thermoplastic resin coated urea 50kg

[0049] 8% thermoplastic resin coated urea 50kg

[0050] 3% thermoplastic resin coated compound fertilizer 120kg

[0051] 5% thermoplastic resin coated compound fertilizer 150kg

[0052] 7% thermoplastic resin coated compound fertilizer 150kg

[0053] 8% thermoplastic resin coated compound fertilizer 80kg

[0054] Potassium chloride compound fertilizer 200kg.

[0055] Preparation method: Put the above-mentioned raw materials into a blender according to the ratio and stir for 5-10 minutes, and mix well to get the product.

Embodiment 2

[0056] Embodiment 2: Cedar-specific controlled-release fertilizer, total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide are respectively 24%, 9%, and 9%, in mass percent. The raw material components are as follows:

[0057] Sulfur coated urea 130kg

[0058] 6% thermoplastic resin coated urea 60kg

[0059] 7% thermoplastic resin coated urea 60kg

[0060] 8% thermoplastic resin coated urea 60kg

[0061] 3% thermoplastic resin coated compound fertilizer 150kg

[0062] 5% thermoplastic resin coated compound fertilizer 120kg

[0063] 7% thermoplastic resin coated compound fertilizer 130kg

[0064] 8% thermoplastic resin coated compound fertilizer 100kg

[0065] Potassium chloride compound fertilizer 190kg.

Embodiment 3

[0066] Embodiment 3: Cedar-specific controlled-release fertilizer, total nutrients: nitrogen, phosphorus pentoxide, and potassium oxide are respectively 24%, 9%, and 9%, in mass percent. The raw material components are as follows:

[0067] Sulfur coated urea 110kg

[0068] 6% thermoplastic resin coated urea 70kg

[0069] 7% thermoplastic resin coated urea 70kg

[0070] 8% thermoplastic resin coated urea 70kg

[0071] 3% thermoplastic resin coated compound fertilizer 130kg

[0072] 5% thermoplastic resin coated compound fertilizer 130kg

[0073] 7% thermoplastic resin coated compound fertilizer 140kg

[0074] 8% thermoplastic resin coated compound fertilizer 110kg

[0075] Potassium chloride compound fertilizer 170kg.

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Abstract

The invention relates to a special controlled release fertilizer for decorative plant cedar and a preparing method thereof. The fertilizer is obtained by compounding sulphur coated urea, modified epoxy resin coated urea with different coating amount, thermoplastic resin coated compound fertilizers, potassium chloride compound fertilizers, etc. The special controlled release fertilizer for decorative plant cedar is applied every year to avoid damage on the root of cedar due to applying fertilizer time after time, has advantages of saving labor and power, improving fertilizer availability ratio, avoiding loss of nitrogen potasium fertilizer, satisfying request of nitrogen, phosphorus and kalium during different growth periods.

Description

technical field [0001] The invention relates to a special controlled-release fertilizer for ornamental plant cedar and a preparation method thereof, belonging to the technical field of slow / controlled release fertilizers. Background technique [0002] Cedar is native to the western Himalayas, from Afghanistan to India at an altitude of 1300-3300 meters; China has introduced it since 1920, and it is now cultivated in major cities in the Yangtze River Basin. Cedar has a straight stem, firm material, majestic and green tree appearance, and is one of the three world-renowned precious ornamental tree species together with Araucaria fir and Japanese golden pine. It is one of the main tree species in gardens, landscape avenues, courtyards and other places. In recent years, with the development of my country's urban construction, more and more cedars have been cultivated. [0003] In the past, cedar was rarely fertilized. In recent years, the demand for cedar for urban greening in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/08A01C21/00C05C9/00C05D1/02C05G3/90
Inventor 万连步张民高义武李荣霞刘建
Owner KINGENTA ECOLOGICAL ENG GRP
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