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Method for preparing slow release fertilizer used for blueberry plantation

A slow-release fertilizer, blueberry technology, applied in the application, nitrogen fertilizer, potassium fertilizer and other directions, can solve problems such as unresearched, achieve the effect of improving slow-release effect, improving fertilizer efficiency, and promoting nutrient absorption and utilization

Inactive Publication Date: 2017-02-08
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that in the prior art, the research on blueberry fertilizer mainly focuses on the requirements of blueberry on climate and soil, etc., and makes the soil meet the requirements through fertilization. However, in the process of fertilizing blueberry, the length of its fertilizer effect has not been studied. , and there is no slow-release fertilizer specifically researched for blueberry planting fertilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method for slow-release fertilizer for blueberry planting, comprising the following steps:

[0026] (1) The coating raw materials are calculated as urea 6g, agar 3g, sodium alginate aqueous solution 1g, starch 6g, polyvinyl alcohol 9g, glycerin 5g, polyglycerol fatty acid 5g and mix uniformly in terms of weight ratio, add water therein, adjust The solid-liquid ratio is 1:1, after constant temperature treatment at 60°C for 10 minutes, it is heated up to 95°C, stirring at a stirring speed of 800r / min for 10min, and the solid-liquid ratio is adjusted to 1:5 to obtain coated pulp;

[0027] (2) Mix the fertilizer raw materials according to the ratio of potassium sulfate 2kg, ferrous sulfate 1kg, potassium dihydrogen phosphate 3kg, dipotassium hydrogen phosphate 8kg, plant ash 3kg, pine needle powder 8kg, decomposed chicken manure 20kg, and then put it in the granulator Medium granulation and drying to obtain dry granules;

[0028] (3) Put the dry granules in ...

Embodiment 2

[0031] A preparation method for slow-release fertilizer for blueberry planting, comprising the following steps:

[0032] (1) The coating materials are calculated as 9kg of urea, 5kg of agar, 3kg of sodium alginate aqueous solution, 9kg of starch, 15kg of polyvinyl alcohol, 9kg of glycerin, and 7kg of polyglycerol fatty acid in a weight ratio. The solid-to-liquid ratio is 1:2, after constant temperature treatment at 60°C for 20 minutes, the temperature is raised to 95°C, the stirring speed is 1200r / min and stirred for 20min, and the solid-liquid ratio is adjusted to 1:7 to obtain coated pulp;

[0033] (2) Mix the fertilizer raw materials according to the ratio of 20kg of potassium sulfate, 20kg of ferrous sulfate, 7kg of potassium dihydrogen phosphate, 11kg of dipotassium hydrogen phosphate, 11kg of plant ash, 13kg of pine needle powder, and 40kg of decomposed chicken manure, and then put it in the granulator Medium granulation and drying to obtain dry granules;

[0034] (3) ...

Embodiment 3

[0040] A preparation method for slow-release fertilizer for blueberry planting, comprising the following steps:

[0041] (1) The coating materials are calculated by weight ratio as 7kg of urea, 4kg of agar, 2kg of sodium alginate aqueous solution, 7kg of starch, 11kg of polyvinyl alcohol, 6kg of glycerin, and 6kg of polyglycerol fatty acid. The solid-to-liquid ratio is 1:1.5, after constant temperature treatment at 60°C for 15 minutes, heat up to 95°C, stir at a stirring speed of 1000r / min for 15 minutes, adjust the solid-liquid ratio to 1:6, and obtain coated pulp;

[0042] (2) Mix the fertilizer raw materials according to the ratio of potassium sulfate 10kg, ferrous sulfate 15kg, potassium dihydrogen phosphate 5kg, dipotassium hydrogen phosphate 9kg, plant ash 7kg, pine needle powder 12kg, decomposed chicken manure 30kg, and then put it in the granulator Medium granulation and drying to obtain dry granules;

[0043] (3) Put the dry granules in a coating machine, spray into...

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Abstract

The invention relates to the technical field of a fertilizer used for blueberry plantation, and especially relates to a method for preparing a slow release fertilizer used for blueberry plantation. According to the invention, a coating slurry is prepared by urea, agar, a sodium alginate aqueous solution, starch, polyvinyl alcohol, glycerin and polyglyceryl fatty acid in proportion, after the raw materials of the fertilizer used for the blueberry are proportioned, the coating slurry is sprinkled for coating the external surface of the particles to obtain the slow release fertilizer used for the blueberry, the slow release period of the slow release fertilizer is long, a coating layer can be degraded and used, the slow release fertilizer presents acidity after being degraded, can effectively reduce the pH value of the soil, can adjust the soil property in a blueberry plantation base for long-term satisfaction of blueberry growth requirements, can provide full nutrients during a blueberry growth process, and increases the blueberry output.

Description

technical field [0001] The invention relates to the technical field of fertilizers for blueberry planting, in particular to a method for preparing slow-release fertilizers for blueberry planting. Background technique [0002] Blueberry (Blueberry) scientific name Vaccinium spp, also known as bilberry, blueberry, is a perennial deciduous or evergreen shrub in Rhododendronaceae Vaccinium. There are 3 major commercial cultivation types: highbush blueberry, rabbit eye blueberry, and lowbush blueberry. Blueberry fruit has a unique flavor and rich nutrition, and is known as the "king of berries". Blueberries are rich in anthocyanins, low in sugar, low in fat, and have strong antioxidant capacity. Because of their unique nutritional value and health care effects, blueberries are listed as one of the top five health foods for human beings by the International Food and Agriculture Organization, and are listed as the third-generation fruit in the world. ranks. At present, countries ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/00C05G3/80C05G5/12C05G5/30C05F11/00C05F3/00C05C9/00C05D1/00C05D1/02C05D9/02
Inventor 项双龙彭宝林王先炜潘礼富徐圆王采艳
Owner GUIZHOU KAILIN GRP CO LTD
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