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Special controlled-release fertilizer for container seedling raising of larch and application thereof

A technology of container seedling cultivation and controlled release fertilizer, which is applied in the direction of application, fertilization device, fertilizer mixture, etc., to achieve the effects of high nutrient utilization rate, long fertilizer effect period and reasonable nutrient distribution ratio

Active Publication Date: 2014-06-11
INST OF FORESTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, the research and application of controlled-release fertilizers for larch container seedlings in my country is still blank, and the development of special controlled-release fertilizers is of great significance for improving the efficiency and intensification of larch seedlings in my country

Method used

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  • Special controlled-release fertilizer for container seedling raising of larch and application thereof
  • Special controlled-release fertilizer for container seedling raising of larch and application thereof
  • Special controlled-release fertilizer for container seedling raising of larch and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1: Special controlled-release fertilizer for container seedling of larch

[0054] 1. Raw materials: Calculated based on the production of 1000kg,

[0055]

Weight (kg)

Weight percentage (%)

Urea

150

15

Ammonium Sulfate

235.47

23.547

Diammonium Phosphate

217.5

21.75

Potassium nitrate

326

32.6

Magnesium Sulfate

30

3.0

Chelated iron ED-13

2.3

0.23

Zinc Sulfate

0.9

0.09

[0056] Copper sulfate

0.8

0.08

Manganese sulfate

0.6

0.06

Sodium borate

2.4

0.24

Sodium molybdate

0.03

0.003

Bentonite

30

3

Degradable resin coating material

4

0.4

Total

1000

100

[0057] 2. Preparation method: Weigh each raw material according to the ratio, mix it and granulate, and coat it with degradable resin.

[0058] 3. Detection: The methods used for the determination of the elements in the controlled release fertilizer of this formula are:

[0059] The nitrogen content adopts Kjeldahl method;

[0060] Phosphorus content adopts qu...

Embodiment 2

[0069] Example 2: Special controlled-release fertilizer for container seedling of larch

[0070] 1. Raw materials: based on the production of 1000kg,

[0071]

Weight (kg)

Weight percentage (%)

Urea

123

12.3

Ammonium Sulfate

400.97

40.097

Diammonium Phosphate

174

17.4

Potassium nitrate

218

21.8

[0072] Potassium sulfate

--

--

Magnesium Sulfate

30

3.0

Chelated iron ED-13

2.3

0.23

Zinc Sulfate

0.9

0.09

Copper sulfate

0.8

0.08

Manganese sulfate

0.6

0.06

Sodium borate

2.4

0.24

Sodium molybdate

0.03

0.003

Bentonite

43

4.3

Degradable resin coating material

4

0.4

Total

1000

100

[0073] 2. Preparation method: same as in Example 1.

[0074] 3. Detection: The detection method is the same as in Example 1, and calculated according to the weight percentage of the effective nutrients of the controlled release fertilizer in Example 2, nitrogen 20%, phosphorus pentoxide 8%, potassium oxide 10%, magnesium 0.5%, ir...

Embodiment 3

[0076] Example 3: Special controlled-release fertilizer for larch container seedlings

[0077] 1. Raw materials: Calculated based on the production of 1000kg,

[0078]

Weight (kg)

Weight percentage (%)

Urea

189.4

18.94

Ammonium Sulfate

--

--

Diammonium Phosphate

391.3

39.13

Potassium nitrate

174

17.4

Potassium sulfate

200.27

20.027

Magnesium Sulfate

30

3

Chelated iron ED-13

2.3

0.23

Zinc Sulfate

0.9

0.09

Copper sulfate

0.8

0.08

Manganese sulfate

0.6

0.06

Sodium borate

2.4

0.24

Sodium molybdate

0.03

0.003

Bentonite

4

0.4

Degradable resin coating material

4

0.4

Total

1000

100

[0079] 2. Preparation method: same as Example 1.

[0080] 3. Detection: The detection method is the same as in Example 1, and calculated according to the weight percentage of the effective nutrients in the controlled release fertilizer in Example 3. Nitrogen 18%, phosphorus pentoxide 18%, potassium oxide 18%, magnesium 0.5%, iron and zinc each 0.03%, 0.02% copp...

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Abstract

The invention relates to a special controlled release fertilizer for container seedling raising of larch (Larix spp.) and application thereof. The special controlled-release fertilizer contains the following components: nitrogen, phosphorus pentoxide, potassium oxide, magnesium, iron, boron, manganese, zinc, copper and molybdenum. The controlled-release fertilizer with a special formula provided by the invention is designed aiming at nutrient characteristics of matrix for facility seedling raising of larch and nutrient requirements in each growth stage in a larch seedling stage, and overcomes the defects of long cultivation cycle, multiple times of fertilization, high labor cost and low fertilizer utilization rate in traditional field seedbed bare root seedling raising of larch.

Description

Technical field [0001] The invention relates to the field of controlled-release fertilizers in forestry production, in particular to a special controlled-release fertilizer for larch container seedlings. The invention also relates to its application method. Background technique [0002] Larch has the characteristics of strong adaptability, fast-growing early, fast growth, few diseases and insect pests, and excellent material. It is an important pulpwood and building timber species in the sub-alpine areas of Northeast, Northwest, North China and South my country. It is also a project of returning farmland to forests and protection forests. The main afforestation tree species. The larch (Larix spp.) production areas in my country are mainly located in remote mountainous areas or state-owned forest areas where the economy is underdeveloped. Small-scale farmer-style bare-root seedlings are commonly used in the production of larch seedlings. The seedling cycle is 2 years. Apply ammoniu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00A01G1/00
Inventor 张守攻孙晓梅楚秀丽
Owner INST OF FORESTRY CHINESE ACAD OF FORESTRY
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