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Activator for phosphor element of soil

A soil phosphorus and activator technology, applied in the agricultural field, can solve the problem of low phosphorus dissolving ability

Inactive Publication Date: 2007-07-25
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a soil phosphorus activator capable of improving the phosphorus supply capacity of the soil to crops, reducing production costs, and increasing crop yields, which is used to overcome the shortcomings of the low phosphorus-dissolving ability of existing phosphorus-dissolving microbial fertilizers

Method used

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Embodiment Construction

[0021] 1. Preparation of soaking bacteria agent: Take the preparation of soaking bacteria agent in a small fermenter (200L) as an example. Add 2% wheat bran and 1% cornmeal to quantitative water, boil for half an hour, filter the residue with double-layer gauze, take 150L and put it into a fermenter, sterilize by steam (120°C) for 40 minutes, and cool to 30°C Left and right inoculation. Add the Asp.32-4 secondary seed solution (ie, the seed solution cultivated in shake flasks) according to the inoculum amount of 2% to 3%. Incubate at 30°C, incubate with aeration for 48 hours, take samples every 12 hours to measure pH, and observe the development of mycelia.

[0022] 2. Adsorbent preparation: 33kg of peat (air-dry weight), 10kg of corn cob powder, 7kg of distiller's grains, 2kg of allantoin, and 8kg of nitroputrescium. Peat, corn cobs, and distiller's grains are crushed and passed through an 80-mesh sieve, sterilized at 131°C for 1 hour, and allantoin is dissolved in hot wate...

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Abstract

This invention discloses a soil phosphorus activation agent, which is composed of: aspergillus niger phosphorus-dissolving bacteria 35-45 wt.%, peat coal 30-35 wt.%, corn flour 8-12 wt.%, lees 6-8 wt.%, allantion 1-3 wt.%, and ammonium nitrohumate 7-9 wt.%. The soil phosphorus activation agent is produced by: preparing aspergillus Niger phosphorus-dissolving bacteria, preparing the adsorption agent, mixing, and piling. This invention provides a high-activity, high-efficiency and no pollution green agricultural product. The soil phosphorus activation agent can improve the phosphorus-supplying capacity of soil to crops, lower production cost, and increase crop productivity.

Description

Technical field: [0001] The invention belongs to the technical field of agriculture and relates to a soil phosphorus activator. Background technique: [0002] Phosphorus is one of the nutrient elements necessary for plant growth and development. The area of ​​phosphorus-deficient soil is widely distributed in the world and in my country. One-third to one-half of the cultivated soil in my country is deficient in phosphorus, and the available phosphorus content in most soils is lower than 10mg / kg, which seriously limits the increase of crop yield. In order to increase crop yields, it is necessary to apply chemical phosphorus fertilizers to the soil. However, when phosphate fertilizer is applied to the soil, it is easy to form insoluble phosphate, which is quickly absorbed and fixed by soil minerals or held by microorganisms, and its utilization rate in the current season is generally only 10% to 25%. Therefore, in production practice, in order to overcome the situation of s...

Claims

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Application Information

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IPC IPC(8): C09K17/00C09K101/00
Inventor 赵英王秀全刘淑霞王德清
Owner JILIN AGRICULTURAL UNIV
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