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Fast growing turf-based controlled/slow-release ecological fertilizer as well as preparation method and application thereof

A fast-growing grass, controlled and slow-release technology, applied in fertilization methods, applications, nitrogen fertilizers, etc., can solve problems affecting the controlled and slow-release effect of biochar-coated carbon-based fertilizers, nutrients entering and leaving micropores, nutrient decomposition, adsorption loss, etc. Nutrient loss, elimination of nutrient deficiencies, and high content

Active Publication Date: 2018-02-23
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the micropore diameter is larger than that of the nutrient elements, the resistance of nutrients entering and leaving the micropores is small, so the physically adsorbed nutrients are easily desorbed and lost, which in turn affects the nutrient controlled and slow release effect of biochar-coated carbon-based fertilizers.

Method used

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  • Fast growing turf-based controlled/slow-release ecological fertilizer as well as preparation method and application thereof
  • Fast growing turf-based controlled/slow-release ecological fertilizer as well as preparation method and application thereof
  • Fast growing turf-based controlled/slow-release ecological fertilizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A fast-growing peat-based controlled slow-release ecological fertilizer, its components in parts by weight include: 30 parts of carbon-loaded urea, 25 parts of carbon-loaded potassium fertilizer, 10 parts of carbon-loaded monoammonium phosphate, 10 parts of urea, 5 parts of potassium sulfate, 5 parts of Parts of cytokinin production bacteria agent, 5 parts of potassium silicate and 10 parts of industrial starch; wherein the total nutrients (N+P 2 o 5 +K 2 O) mass content ≥ 30%; N:P 2 o 5 :K 2 The mass ratio of O is 14:6:10; the fast-growing peat-based slow-release ecological fertilizer contains Bacillus megaterium, Bacillus subtilis, Bacillus colloidus and Trichoderma flora, wherein the effective live bacteria of each bacterium Number average≥10×10 9 cfu / g, the total number of effective viable bacteria in the fast-growing peat-based slow-release ecological fertilizer is ≥50×10 9 cfu / g. The carrier charcoal of the charcoal-loaded fertilizer is the fast-growing gra...

Embodiment 2

[0041] A fast-growing peat-based controlled-release ecological fertilizer, its components in parts by weight include: 20 parts of carbon-loaded urea, 40 parts of carbon-loaded potassium fertilizer, 8 parts of urea, 10 parts of potassium sulfate, 12 parts of cytokinin-producing bacteria and 10 parts of parts of industrial starch; of which total nutrients (N+P 2 o 5 +K 2 O) mass content ≥ 30%; N:P 2 o 5 :K 2 The mass ratio of O is 9:4:17; the fast-growing peat-based slow-release ecological fertilizer contains Bacillus megaterium, Bacillus subtilis, Bacillus colloidus and Trichoderma flora, wherein the effective live bacteria of each bacterium Average number≥20×10 9 cfu / g, the total effective number of viable bacteria in the fast-growing peat-based slow-release ecological fertilizer is ≥100×10 9 cfu / g. The carrier charcoal of the charcoal-loaded fertilizer is the fast-growing grass Nandi charcoal (prepared according to the above method). Use a disc granulator to mix the a...

experiment example 1

[0044] As an important rice production base and melon export base in my country, Hunan has a large planting area of ​​rice and melon, and has great potential in the fertilizer market. Therefore, this experimental example is carried out with the special carbon-based ecological fertilizer for rice and the special carbon-based ecological fertilizer for melon prepared in Example 1 and Example 2.

[0045] Determination of the total nutrient content of the configured fertilizer samples: the total phosphorus and potassium content was determined by the microwave digestion ICP method, and the total nitrogen content was determined by the Kjeldahl method. Delayed release of nutrients in the fertilizer samples was tested with reference to the national standard GB / T 23348-2009. Determination result is as follows table 1 and table 2:

[0046] Table 1 Nutrient content of Nandi charcoal-based controlled-release ecological fertilizer specially formulated for rice and melon

[0047]

[004...

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Abstract

The invention relates to a fast growing turf-based controlled / slow-release ecological fertilizer as well as a preparation method and application thereof. The ecological fertilizer contains active components or other beneficial components, wherein the active components include a slow-release fertilizer component, a quick-acting fertilizer component and a cytokinin production bacterial agent. The mass content of total nutrients (N+P2O5+K2O) in the ecological fertilizer is more than or equal to 30%; carrier carbon used in a slow-release fertilizer is fast growing turf; the cytokinin production bacterial agent contains florae of bacillus megatherium, bacillus subtilis, bacillus mucilaginosus and trichoderma. The fast growing turf-based controlled / slow-release ecological fertilizer has the beneficial effects that the quality of the adopted fast growing turf is superior to that of charcoal prepared from traditional agricultural waste: the charcoal yield is high, and the preparation cost of charcoal can be lowered; the prepared fertilizer for paddy fields is beneficial to the sedimentation of charcoal base; the adsorption capacity to nutrient elements is enhanced; and the soil acidification caused by the overusing of a chemical fertilizer can be improved, and meanwhile, the bio-availability can be reduced by passivating heavy metal ions in soil through strong basicity.

Description

technical field [0001] The invention belongs to the technical field of biological fertilizers, and in particular relates to a fast-growing peat-based controlled slow-release ecological fertilizer and a preparation method and application thereof. Background technique [0002] Fast-growing grass refers to a class of perennial C4 herbaceous plants with tall plants and fast growth, mainly including miscanthus spp., pennisetum purpureum, reed (Phragmites communi), reed bamboo (Arundo dona), elephant grass (Pennisetum purpureum) and so on. This kind of grass generally has a high biomass yield and a high content of cellulose and hemicellulose in the biomass, so it is recognized as the most promising energy plant type. However, the conversion technology of cellulosic ethanol is not mature at present, the economic benefits of biomass direct combustion (for power generation and heating) technology are poor, and other types of utilization methods are scarce, which has led to the "stag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04A01C21/00C05G3/80
CPCA01C21/00C05B7/00C05G3/20C05G3/80C05G5/12C05C9/00C05D1/00C05D1/02C05D9/00C05F11/08
Inventor 易自力薛帅王惠群喻鹏肖亮
Owner HUNAN AGRICULTURAL UNIV
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