Special control-release fertilizer for sulfur and resin coated sweet potato and preparation method thereof

A resin-coated, sweet potato-specific technology, applied in fertilization methods, applications, nitrogen fertilizers, etc., can solve problems such as public reports of sweet potato-specific controlled-release fertilizers

Active Publication Date: 2008-08-06
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there is no public report of such a specia

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: special controlled-release fertilizer for sweet potato, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 14%, 9%, 16%, all are percentage by mass. The raw material components are as follows:

[0044] 3% sulfur plus resin coated compound fertilizer 140kg

[0045] 4% sulfur plus resin coated compound fertilizer 135kg

[0046] 5% sulfur plus resin coated compound fertilizer 135kg

[0047] 3% sulfur plus resin coated urea 60kg

[0048] 4% sulfur plus resin coated potassium nitrate 195kg

[0049] Potassium sulfate compound fertilizer 300kg

[0050] Urea 30kg

[0051] Zinc sulfate 5kg.

Embodiment 2

[0052]Embodiment 2: special controlled release fertilizer for sweet potato, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 18%, 9%, 12%, all are percentage by mass. The raw material components are as follows:

[0053] 3% sulfur plus resin coated compound fertilizer 140kg

[0054] 4% sulfur plus resin coated compound fertilizer 135kg

[0055] 5% sulfur plus resin coated compound fertilizer 135kg

[0056] 3% sulfur plus resin coated urea 120kg

[0057] 4% sulfur plus resin coated potassium nitrate 85kg

[0058] Potassium sulfate compound fertilizer 300kg

[0059] Urea 80kg

[0060] Zinc sulfate 5kg.

Embodiment 3

[0061] Embodiment 3: special controlled release fertilizer for sweet potato, total nutrient: nitrogen, phosphorus pentoxide, potassium oxide content are respectively 18%, 9%, 12%, all are percentage by mass. The raw material components are as follows:

[0062] 3% sulfur plus resin coated compound fertilizer 180kg

[0063] 4% sulfur plus resin coated compound fertilizer 55kg

[0064] 5% sulfur plus resin coated compound fertilizer 175kg

[0065] 3% sulfur plus resin coated urea 120kg

[0066] 4% sulfur plus resin coated potassium nitrate 85kg

[0067] Potassium sulfate compound fertilizer 300kg

[0068] Urea 80kg.

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PUM

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Abstract

The invention relates to a controlled release fertilizer special for sulphur-plus-resin coated sweet potato and the preparation method thereof, which is prepared with 3 percent of sulphur-plus-resin coated compound fertilizer, 4 percent of sulphur-plus-resin coated compound fertilizer, 5 percent of sulphur-plus-resin coated compound fertilizer, 3 percent of sulphur-plus-resin coated urea, 4 percent of sulphur-plus-resin coated potassium nitrate, potassium sulfate compound fertilizer, etc., compound preparations. The controlled release fertilizer special for sulphur-plus-resin coated sweet potato is adopted once applied fertilizer to the bottom of the planting trench before the potato is transplanted without further top dressing. The controlled release fertilizer special for sulphur-plus-resin coated sweet potato of the invention is centrally applied nearby the roots in once applied fertilizing, thereby enhancing the fertilization effect, saving manpower and efforts, and meeting the requirement for nitrogen, phosphor and potassium by potato in the annual growth period and delivering good yield of increase effect.

Description

technical field [0001] The invention relates to a sulfur-added resin-coated sweet potato special controlled-release fertilizer and a preparation method thereof, belonging to the technical field of slow / controlled release fertilizers. Background technique [0002] China is the world's largest sweet potato producer, with a planting area of ​​more than 6 million hectares, second only to rice, wheat and corn. Sweet potato is rich in nutrition, and the whole body is a treasure, suitable for industrial processing, feed and food. Sweet potato has the characteristics of strong adaptability, less water consumption, high yield, wide application, and good economic benefits. It is an ideal high-efficiency crop. With the increasing shortage of land and water resources in our country, sweet potato production will play a more important role in improving water resource utilization efficiency and sustainable agricultural development. [0003] Sweet potatoes have a long growth period, high ...

Claims

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Application Information

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IPC IPC(8): C05G3/08A01C21/00C05C9/00C05C5/02C05D1/02C05D9/00C05G3/90
Inventor 万连步杨力杨官波王昀张广仲
Owner KINGENTA ECOLOGICAL ENG GRP
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