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Special water retention fertilizer for sweet potatoes and preparation method thereof

A special fertilizer and technology for sweet potato, applied in the field of special fertilizer for sweet potato water retention and its preparation, can solve the problems of inability to solve the problem of drought resistance and lack of water retention function, and achieve the effects of improving nutrient utilization efficiency, reducing nutrient loss and reasonable nutrient distribution ratio

Inactive Publication Date: 2012-09-26
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above patents have developed a reasonable nitrogen, phosphorus and potassium nutrient ratio product or a nutrient slow-release product according to the characteristics of sweet potatoes requiring fertilizers. However, both products do not have the function of water retention and cannot solve the problem of drought resistance after transplanting sweet potatoes.

Method used

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  • Special water retention fertilizer for sweet potatoes and preparation method thereof
  • Special water retention fertilizer for sweet potatoes and preparation method thereof
  • Special water retention fertilizer for sweet potatoes and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: preparation of special fertilizer for water retention of sweet potato with nutrient content 10-8-22

[0023] First take by weighing 7.9kg boron bentonite, add 3.1kg granular polyacrylamide (produced by Langfang Xinxing Chemical Co., Ltd.), after stirring evenly, then add 9.3kg granular sodium polyacrylate (produced by Shandong Wanhua Chemical Technology Co., Ltd.), normal temperature Stir evenly at a rate of 60-100 rpm under normal pressure, and use it as a raw material for Group A for later use;

[0024] Take by weighing 17.5kg granular urea (containing N mass percent 46%), 18.2kg monoammonium phosphate (containing N mass percent 11%, containing P 2 o 5 mass percent 44%) and 44kg granular potassium sulfate (containing K 2 (2 mass percent 50%), join in the disc type feeder, stir evenly with the speed of 60~200 revs / min under normal temperature and pressure, standby as B group raw material;

[0025] Then add the prepared group A raw materials into the gr...

Embodiment 2

[0026] Embodiment 2: Preparation of special fertilizer for water retention of sweet potato with nutrient content of 12-9-20

[0027] First take by weighing 8kg boron soil, add 3kg granular polyacrylamide (produced by Langfang Xinxing Chemical Co., Ltd.), after stirring evenly, then add 9kg granular sodium polyacrylate (produced by Shandong Wanhua Chemical Technology Co., Ltd.), under normal temperature and pressure Stir evenly at a speed of 60-100 rpm, and use it as the raw material of Group A for later use;

[0028] Take by weighing the mixture of 16.8kg granular urea (containing N mass percent 46%) and ammonium sulfate (containing N mass percent 20%), 19.6kg granular diammonium phosphate (containing N mass percent 18%, containing P 2 o 5 mass percent 46%), 39.1kg granular potassium sulfate (containing K 2 O mass percent 50%) and potassium chloride (containing K 2 (2 mass percentage 60%) mixture, above-mentioned raw material is joined in the disc feeder, under normal tempe...

Embodiment 3

[0030] Embodiment 3: preparation of special fertilizer for water retention of sweet potato with nutrient content of 7-6-25

[0031] First take by weighing 6.2kg boron bentonite, add 2.7kg granular polyacrylamide (produced by Langfang Xinxing Chemical Co., Ltd.), after stirring evenly, then add 8.1kg granular sodium polyacrylate (produced by Shandong Wanhua Chemical Technology Co., Ltd.), normal temperature Stir evenly at a rate of 60-100 rpm under normal pressure, and use it as a raw material for Group A for later use;

[0032] Take by weighing the mixture of 20.7kg granular urea (containing N mass percent 46%), ammonium sulfate (containing N mass percent 20%) and coated urea (containing N mass percent 44%); 17.3kg granular superphosphate (containing P 2 o 5 44% by mass) and superphosphate (containing P 2 o 5 mass percent 12%) mixture; 45.0kg granular potassium sulfate (containing K 2 O mass percent 50%) and potassium chloride (containing K 2 (2 mass percentage 60%) mixtu...

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Abstract

The invention discloses a special water retention fertilizer for sweet potatoes and a preparation method thereof. The special water retention fertilizer for sweet potatoes is prepared from the following raw materials in parts by weight: 7-12 parts of available nitrogen (N), 6-9 parts of available phosphorus (P2O5), 20-25 parts of available potassium (K2O), 8-10 parts of sodium polyacrylate, 2-5 parts of polyacrylamide and 5-9 parts of bentonite. The special water retention fertilizer for sweet potatoes has the advantage of scientific nitrogen-phosphorus-potassium nutrient proportion, integrates both fertilizer and water, combines nutrition and water retention, and can enhance the water and fertility retention properties of soil and the water / fertilizer utilization efficiency of the sweet potatoes. When being spread as a base fertilizer at one time before sweet potato ridge forming, the special water retention fertilizer for sweet potatoes can promote the sweet potato root system to absorb water in the rooting and seedling stage, increase the growth rate of the sweet potatoes in the early stage, shorten the field ridge seal time of the sweet potatoes, and reduce the field moisture evaporation; and the contained nutrients are slowly released to prevent the stems and leaves of the sweet potatoes from vigorous growth and promote fruiting of the sweet potatoes, thereby enhancing the yield of the dry farming sweet potatoes.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a special fertilizer for sweet potato water retention and a preparation method thereof. Background technique [0002] Special fertilizer for crops is a physical and chemical technology product of balanced fertilization, and it is an important condition for fertilizing soil and promoting continuous increase in crop production. Crop-specific fertilizer has the advantages of strong pertinence and regionality, high fertilizer utilization rate, labor-saving and multi-functional, and is the preferred fertilizer variety for farmers to fertilize. The attention of fertilizer enterprises and government functional departments. At present, most of the crop-specific fertilizers that have been successfully developed are concentrated in crops such as wheat, rice, vegetables, and cotton, and there are few reports on special-purpose fertilizers for sweet potatoes. [0003] Swee...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
Inventor 董晓霞王学君孙泽强张立明郑东峰
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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