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Biofertilizer for improving saline and alkaline lands and preparation method and application of biofertilizer

A bio-fertilizer, saline-alkali land technology, applied in the field of saline-alkali land soil improvement, increasing crop yield and preventing secondary salinization of soil, can solve the problems of high cost, soil improvement, salt-tolerant plant varieties, single engineering technology, and soil environment. Issues to be investigated and researched to achieve the effect of increasing yield, improving soil nutrient status, and improving the utilization rate of chemical fertilizers

Active Publication Date: 2015-12-16
烟台瑞腾生物技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic and foreign studies on salinity-alkali control in coastal areas mostly focus on soil improvement, salt-tolerant plant varieties, engineering technology, etc.
The conventional chemical improvement method has a very significant effect in the short term, but its shortcomings are also obvious, the cost is too high, and the impact on the soil environment needs to be investigated and studied
There are few reports on microbial fertilizers aimed at improving saline-alkali land and promoting crop production

Method used

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  • Biofertilizer for improving saline and alkaline lands and preparation method and application of biofertilizer
  • Biofertilizer for improving saline and alkaline lands and preparation method and application of biofertilizer
  • Biofertilizer for improving saline and alkaline lands and preparation method and application of biofertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0035] Embodiment 1-3 provides a kind of biological fertilizer for improving saline-alkali land respectively, and its formula is specifically shown in Table 1:

[0036] Biological fertilizer formula described in table 1 embodiment 1-3

[0037]

[0038] EDTA-Mg

[0039] The weight ratio of each component in the composite improver of the above embodiment is humic acid: zeolite: furfural slag: gypsum = 25:15:20:8. The compound microbial agent ensures that the number of effective viable bacteria per gram of biological fertilizer is not less than 5.0×10 8 cfu (preferably 5.5×10 8 cfu), wherein each gram of biological fertilizer contains actinomycetes ≥ 1.5×10 8 cfu, Bacillus megaterium ≥2.5×10 8 cfu, Bacillus subtilis ≥1.0×10 8 cfu.

Embodiment 4

[0041] This embodiment provides the preparation method of the biological fertilizer for improving saline-alkali land described in any one of Embodiments 1 to 3, see figure 1 , including the following steps:

[0042] 1) Weigh the fermented mushroom slag, superphosphate, and ammonium sulfate in proportion, pulverize them to 0.5 mm respectively, and mix them evenly to obtain mixed raw materials;

[0043] 2) Mix actinomycetes, Bacillus megaterium and Bacillus subtilis according to the proportion, and the number of effective viable bacteria per gram of biological fertilizer is not less than 5.0×10 8 cfu;

[0044] 3) Weigh humic acid, zeolite, furfural slag, and gypsum in proportion, grind them to 0.5 mm respectively, and mix them evenly to obtain a composite modifier;

[0045] 4) Add the mixed compound microbial bacterial agent and compound improver to the mixed raw materials, and stir evenly;

[0046] 5) Add EDTA-metal chelate, ammonium molybdate and borax in the mixture, mix w...

Embodiment 5

[0049] Compared with Example 4, the only difference is that the homogeneous mixing in step 5) of this embodiment refers to: stirring once every 40 minutes, once for 15-20 minutes, stirring 3 times in total; the pH value of the fertilizer is controlled to be 5.0- 7.0.

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Abstract

The invention relates to biofertilizer for improving saline and alkaline lands. The biofertilizer comprises the following components in parts by weight: 200 to 250 parts of fermented mushroom residue, 150 to 200 parts of ammonium sulfate, 50 to 100 parts of superphosphate, 50 to 100 parts of complex improver, 15 to 21 parts of EDTA (ethylene diamine tetraacetic acid)-metallo-chelate, 0.5 to 1 parts of ammonium molybdate and 5 to 10 parts of borax, and also comprises 20 to 30 parts of compound micro-organism, so that the living bacteria count of the biofertilizer is not less than 5.0 * 108CFU (colony-forming unit) per gram. The invention also relates to a preparation method for the biofertilizer and the application of the biofertilizer in crop planting. The biofertilizer for improving the saline and alkaline lands, disclosed by the invention, has important functions of improving the soil conditions of the saline and alkaline lands, improving the soil fertility, increasing crop yield and preventing the soil from secondary salinization.

Description

technical field [0001] The invention relates to a biological fertilizer for improving saline-alkali soil, especially for soil improvement in saline-alkali land, increasing crop yield and preventing secondary salinization of soil. Background technique [0002] The main factors affecting crop yield are heredity, ecology (climate, season, soil, etc.), cultivation management and other factors. What is easier to adjust in the production process is soil, fertilizer and water management, which can improve the physical and chemical conditions of the soil through rational fertilization and irrigation, improve the growth environment of crops, and improve the yield and quality of crops. [0003] Saline-alkali land has low soil nutrient content, and adding fermented mushroom dregs and other organic fertilizers can improve soil composition and structure, enhance soil permeability, and accelerate salt leaching. Apply bacterial fertilizer to increase soil fertility, improve soil structure...

Claims

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Application Information

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IPC IPC(8): C05G3/04A01B79/02C05G3/80
Inventor 王立华孙磊刘宝德刘勇
Owner 烟台瑞腾生物技术研究院有限公司
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