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Special polyglutamic acid-containing fertilizer for sweet potatoes and preparation method of special polyglutamic acid-containing fertilizer

A special fertilizer for sweet potatoes, polyglutamic acid technology, applied in the direction of application, fertilization equipment, fertilizer mixture, etc., can solve the problems of low yield and insufficient absorption of sweet potatoes, achieve simple fertilization methods, high fertilizer utilization rate, and promote crop root system The effect of growth

Pending Publication Date: 2022-07-12
北京化工大学秦皇岛环渤海生物产业研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a special fertilizer for sweet potatoes containing polyglutamic acid, which solves the problems that the fertilizers in the prior art cannot be fully absorbed and the yield of sweet potatoes is low when used for planting sweet potatoes

Method used

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  • Special polyglutamic acid-containing fertilizer for sweet potatoes and preparation method of special polyglutamic acid-containing fertilizer
  • Special polyglutamic acid-containing fertilizer for sweet potatoes and preparation method of special polyglutamic acid-containing fertilizer
  • Special polyglutamic acid-containing fertilizer for sweet potatoes and preparation method of special polyglutamic acid-containing fertilizer

Examples

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Effect test

Embodiment 1

[0028] The special fertilizer for sweet potato containing polyglutamic acid in this embodiment is made from the following raw materials by weight: 5 parts of polyglutamic acid fermentation broth, 3 parts of polyaspartic acid, 2.5 parts of glutathione, and 25 parts of nitrogen fertilizer , 20 parts of phosphate fertilizer, 25 parts of potassium fertilizer, 15 parts of magnesium fertilizer, 1 part of zinc fertilizer, 2.7 parts of manganese fertilizer, and 5 parts of boron fertilizer.

[0029] Wherein, the polyglutamic acid content in the polyglutamic acid fermentation broth is 17wt%; the glutathione is oxidized glutathione; Partic acid; the nitrogen fertilizer is urea with a nitrogen content of 46wt%; the phosphate fertilizer is P 2 O 5 14wt% calcium superphosphate; the potassium fertilizer is K 2 The potassium sulfate with an O content of 50wt%; the magnesium fertilizer is magnesium sulfate with a magnesium content of 10wt%; the zinc fertilizer is zinc sulfate with a zinc con...

Embodiment 2

[0033] The special fertilizer for sweet potato containing polyglutamic acid in this embodiment is made from the following raw materials by weight: 0.1 part of polyglutamic acid fermentation broth, 5 parts of polyaspartic acid, 0.1 part of glutathione, and 10 parts of nitrogen fertilizer , 30 parts of phosphate fertilizer, 35 parts of potassium fertilizer, 8 parts of magnesium fertilizer, 5 parts of zinc fertilizer, 0.5 part of manganese fertilizer, and 2.7 parts of boron fertilizer.

[0034] Wherein, the content of polyglutamic acid in the polyglutamic acid fermentation broth is 25wt%; the glutathione is oxidized glutathione; the polyaspartic acid is polyaspartic acid with a content of 80% Partic acid; the nitrogen fertilizer is urea with a nitrogen content of 46wt%; the phosphate fertilizer is P 2 O 5 14wt% calcium superphosphate; the potassium fertilizer is K 2The potassium sulfate with an O content of 50wt%; the magnesium fertilizer is magnesium sulfate with a magnesium c...

Embodiment 3

[0037] The special fertilizer for sweet potato containing polyglutamic acid in this embodiment is made from the following raw materials by weight: 2.5 parts of polyglutamic acid fermentation broth, 4 parts of polyaspartic acid, 5 parts of glutathione, and 20 parts of nitrogen fertilizer , 12 parts of phosphate fertilizer, 19 parts of potassium fertilizer, 1 part of magnesium fertilizer, 10 parts of zinc fertilizer, 5 parts of manganese fertilizer, and 0.5 part of boron fertilizer.

[0038] Wherein, the content of polyglutamic acid in the polyglutamic acid fermentation broth is 10wt%; the glutathione is oxidized glutathione; the polyaspartic acid is polyaspartic acid with a content of 70% Partic acid; the nitrogen fertilizer is urea with a nitrogen content of 46wt%; the phosphate fertilizer is P 2 O 5 14wt% calcium superphosphate; the potassium fertilizer is K 2 The potassium sulfate with an O content of 50wt%; the magnesium fertilizer is magnesium sulfate with a magnesium co...

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Abstract

The invention provides a special polyglutamic acid-containing fertilizer for sweet potatoes. The special polyglutamic acid-containing fertilizer is prepared from the following raw materials in parts by weight: 0.1-5 parts of polyglutamic acid fermentation liquor, 1-5 parts of polyaspartic acid, 0.1-5 parts of glutathione, 10-25 parts of nitrogen fertilizer, 10-30 parts of phosphate fertilizer, 15-35 parts of potassium fertilizer, 1-15 parts of magnesium fertilizer, 1-10 parts of zinc fertilizer, 0.5-5 parts of manganese fertilizer and 0.5-5 parts of boron fertilizer. The polyglutamic acid-containing special fertilizer for sweet potatoes has the advantages of strong water retention capacity and high chemical fertilizer utilization rate, can enrich nutritional ingredients, promotes crop root growth and protein synthesis, and greatly improves the yield of sweet potatoes when being used for sweet potato planting.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a special fertilizer for sweet potato containing polyglutamic acid and a preparation method thereof. Background technique [0002] Sweet potato has attracted much attention as a food and energy crop. At present, the planting area of ​​sweet potato in my country ranks fourth after rice, wheat and corn. In modern sweet potato planting, the applied fertilizer cannot be completely absorbed by sweet potato, and the supplement of medium and trace elements is ignored in the fertilizer ratio, which not only results in low yield of sweet potato, but also causes waste of fertilizer. Therefore, it is necessary to develop special fertilizer for sweet potato to improve the planting environment. [0003] At present, the special fertilizer for sweet potato focuses on the growth of sweet potato, ignoring the impact of fertilizer on the soil, and the discharge of sweet potato pr...

Claims

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Application Information

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IPC IPC(8): C05G3/80C05G5/12
CPCC05G3/80C05G5/12C05B1/02C05C9/00C05C11/00C05D1/02C05D5/00C05D9/02Y02W30/40
Inventor 王斌曹辉刁倩张利伟赵飞
Owner 北京化工大学秦皇岛环渤海生物产业研究院
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