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Active-phosphorus bio-organic fertilizer prepared through biological aerobic co-compost of crop straws and phosphate fertilizer and preparation method thereof

A bio-organic fertilizer and crop straw technology, applied in the field of living phosphorus bio-organic fertilizer and its preparation, can solve the problems that the utilization rate of phosphorus fertilizer is only 10% to 25%, and the effect of microorganisms is not large, so as to improve the sustainable supply capacity and improve Absorptive capacity, low cost effect

Inactive Publication Date: 2019-07-23
GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In 2017, the amount of agricultural chemical fertilizers used in my country was 58.59 million tons (pure conversion), and the amount of chemical fertilizers used per unit of arable land was about three times the world average level, but the utilization rate of phosphorus fertilizers for current crops was only 10% to 25%, far below the level of developed countries
However, during the processing of bio-organic-inorganic compound fertilizers, the chemical fertilizers use dry materials, which contain no or little water, which can inhibit the activity of microorganisms; after this fertilizer is applied to the soil, when the water is sufficient, the high concentration It is impossible for the fertilizer solution to revive the added microorganisms, and it is possible to kill the added microorganisms, so the microorganisms in the bio-organic-inorganic compound fertilizer have little effect

Method used

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  • Active-phosphorus bio-organic fertilizer prepared through biological aerobic co-compost of crop straws and phosphate fertilizer and preparation method thereof
  • Active-phosphorus bio-organic fertilizer prepared through biological aerobic co-compost of crop straws and phosphate fertilizer and preparation method thereof
  • Active-phosphorus bio-organic fertilizer prepared through biological aerobic co-compost of crop straws and phosphate fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Preparation of rotting stalk agent A

[0027] Raw material: EM bacteria solution (commercially available), white rot bacteria solution (commercially available), nitrogen-fixing bacteria (Azotobacterchroococcum) solution and phosphorus-solubilizing bacteria solution, the said phosphorus-solubilizing bacteria contain Bacillus megaterium and inorganic phosphorus-solving bacteria (Pseudomonas sp.).

[0028] Mix EM bacteria solution, white rot bacteria solution, nitrogen-fixing bacteria (Azotobacter chroococcum) solution, organic phosphorus bacteria (Bacillus megaterium) solution, and inorganic phosphorus bacteria (Pseudomonas sp.) solution in a volume ratio of 30:25:20:12.5:12.5 The ratio is mixed evenly to obtain the mixed strains, and the mixed strains are inoculated into LB medium according to the inoculation amount of 5% by volume fraction for fermentation and cultivation, at 28°C, 150r min -1 Cultivate to the logarithmic growth phase (about 48h), and then f...

Embodiment 2

[0029] Embodiment 2: living phosphorus biological organic fertilizer A

[0030] (1) Compost raw materials, compost additives and their proportions

[0031] Compost raw material: Rice straw (3cm)

[0032] Compost additives: rotting stalk agent A, superphosphate, urea

[0033] Table 1 The property parameters of compost raw materials

[0034]

[0035] The addition amount of each material of table 2 embodiment 2

[0036]

[0037]

[0038]The basic physical and chemical properties of compost raw materials are shown in Table 1. See Table 2 for the amount of compost raw materials, compost additives and pure water added. The rice stalks were taken from Julongwei Farm, Shaxi Town, Zhongshan City; the stalk rot fungal agent A was the self-made rot stalk fungal agent A in Example 1; 2 o 5 )≥12.0%; urea is produced by Yangmei Fengxi Fertilizer (Group) Co., Ltd., total nitrogen (N)≥46.0%.

[0039] (2) Stacked biological aerobic co-composting

[0040] Mix rice stalks cut in...

Embodiment 3

[0052] Embodiment 3: living phosphorus biological organic fertilizer B

[0053] (1) Compost raw materials, compost additives and their proportions

[0054] Compost raw material: rice straw (3cm)

[0055] Compost additives: commercially available rotting stalk agent A, superphosphate, urea

[0056] The addition amount of each material of table 4 embodiment 3

[0057]

[0058] The basic physical and chemical properties of compost raw materials are the same as in Example 2, see Table 1. See Table 4 for the amount of compost raw materials, compost additives and pure water added. Rice stalks were obtained from Julongwei Farm, Shaxi Town, Zhongshan City; commercially available stalk rot agent A, named "Jinkuizi" stalk rot agent, was mainly composed of Proteobacteria, Firmicutes ), Actinobacteria and fungal Basidiomycota, Ascomycota and other microbial flora, with effective viable count ≥ 0.5×10 8 CFU·g -1 , purchased from Foshan Golden Kuizi Plant Nutrition Co., Ltd.; super...

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Abstract

The invention discloses an active-phosphorus bio-organic fertilizer prepared through biological aerobic co-compost of crop straws and a phosphate fertilizer and a preparation method thereof. Accordingto the active-phosphorus bio-organic fertilizer and the preparation method disclosed by the invention, a biological aerobic co-compost technology of the straws and the phosphate fertilizer is utilized from the aspect of resourceful cyclic utilization of the straws and the phosphate fertilizer to prepare the active-phosphorus bio-organic fertilizer; the steps are simple, the cost is low, mutual assistance in extremity is achieved, and complementation between advantages and disadvantages is achieved; thus, the invention is a chemical decrement and synergistic strategy which is very worth tryingand has important significance in solving the problems that existing bio-organic fertilizers in China is difficult to popularize in a large scale and the like. The active-phosphorus bio-organic fertilizer has the advantages that straw decomposition and the phosphate fertilizer are dynamically combined; meanwhile, microorganisms, organic fertilizers and the phosphate fertilizer can mutually promote each other; an activating effect of the bio-organic fertilizer to invalid phosphorus of soil is exerted; thus, not only is continuous supply capacity of soil phosphorus improved, but also absorptionand utilization capacity of crops on the phosphorus is improved.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of organic fertilizer production, and in particular relates to a living phosphorus bio-organic fertilizer obtained by utilizing crop straws and phosphate fertilizer biological aerobic co-composting and a preparation method thereof. [0003] Background technique: [0004] In 2017, the amount of agricultural chemical fertilizers used in my country was 58.59 million tons (pure conversion), and the amount of chemical fertilizers used per unit of arable land was about three times the world average level, but the utilization rate of phosphorus fertilizers for current crops was only 10% to 25%, far below the level of developed countries . At present, the problem of low phosphorus availability in vegetable fields in red soil in South China has increasingly become a limiting factor for vegetable growth and development (the utilization rate of current season crops is even lower than 10%). Crop straw is the main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00C05F17/00
CPCC05B1/02C05F17/00C05C9/00C05F11/00C05F11/08Y02W30/40
Inventor 柳勇朱雅琪王珊张会化林曙涂超梁金明温元明陈应龙
Owner GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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