Controlled-Release Bacterial Fertilizer for Peanuts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current microbiological bacterial fertilizers have a short effective duration and fail to meet the nitrogen demands of crops throughout their growth period, necessitating additional applications of fast-acting fertilizers.
Innovation Solution
A controlled-release bacterial fertilizer for peanuts is developed, comprising an inner and outer layer with specific microbial agents and materials like fulvic acid, chitin, alginic acid, and rice husk carbon, which allows for gradual release of nutrients and microbial agents, extending the fertilizer's effectiveness over a longer period.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If microbiological bacterial fertilizer is applied once and released, then the fertilizer can be easily applied, but the effective time of the active bacteria cannot last for the whole period of crop duration
Solution Approach 1:
The fertilizer is divided into an inner layer and an outer layer with different release characteristics. The inner layer contains fast-acting bacteria that provide immediate effect, while the outer layer contains slow-release bacteria that extend the duration of action. This segmentation allows the fertilizer to both ease application (as a single product) and extend effective duration (through layered release mechanisms).
Solution Approach 2:
The inner layer is nested within the outer layer, creating a core-shell structure. The inner layer with fast-acting bacteria is enclosed by the outer layer containing slow-release bacteria. This nested structure enables the fast-acting component to provide immediate effect while the outer layer gradually releases bacteria over extended periods, solving the contradiction between ease of application and duration of action.
2Ease of operation
If slow-release urea formaldehyde fertilizer is applied once, then the fertilizer can be easily applied, but it cannot meet the demand of the whole crop growth period on the fertilizer
Solution Approach 1:
The invention merges fast-acting and slow-release fertilizer components into a single integrated product. The inner layer provides fast-acting nitrogen release to meet immediate crop demands, while the outer layer provides slow-release nitrogen to sustain the crop throughout its growth period. This combining allows single application (ease of operation) while meeting entire growth period demands (productivity).
Solution Approach 2:
The fertilizer ensures continuous nutrient supply by combining immediate fast-acting release from the inner layer with prolonged slow-release from the outer layer. The useful action of nutrient provision continues throughout the entire crop growth period without interruption, resolving the contradiction between ease of single application and adequate nutrient supply throughout the period.
3Productivity
If fast-acting nitrogen fertilizer is applied to meet early crop growth demand, then the crop growth demand can be met, but the fertilizer cannot sustain the whole crop growth period
Solution Approach 1:
The fertilizer is segmented into two functional layers: the inner layer for fast-acting nitrogen release to satisfy early growth demands, and the outer layer for slow-release nitrogen to extend effectiveness throughout the entire growth period. This segmentation allows the fertilizer to both meet early demands (productivity) and extend duration (time).
Solution Approach 2:
The fertilizer employs periodic release patterns where the inner layer provides rapid nutrient release in the early stage, followed by gradual slow-release from the outer layer. This periodic action pattern ensures early growth demands are met while extending the overall effectiveness period through staged nutrient provision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The controlled-release fertilizer promotes plant growth, enhances disease and insect resistance, alleviates continuous cropping obstacles, and improves soil conditions, ensuring sustained nutrient availability and high fertilizer utilization rates.
Implementation Method 1
The outer layer: 20-40 parts of fulvic acid, 10-30 parts of chitin, 5-20 parts of alginic acid, 10-12 parts of rice husk carbon, 8-10 parts of cellulose... which allows for gradual release of nutrients and microbial agents, extending the fertilizer's effectiveness over a longer period
Implementation Method 2
The inner layer: 10-30 parts of urea formaldehyde powder... slowly releases a nitrogen element
Implementation Method 3
The microbiological bacterial fertilizer contains efficient, active and beneficial microorganism bacteria, which can activate soil nutrients, improves the utilization rate of nutrients
Implementation Method 4
bacillus gelatinosus, bacillus laterosporus and bacillus mucilaginosus in colony generate a large number of plant endogenous enzymes such as chitinase in the process of metabolism to promote the growth of plant root systems
Implementation Method 5
bacillus gelatinosus and bacillus mucilaginosus and the like can immobilize nitrogen, dissolve phosphorus, release potassium
Implementation Method 6
bacillus gelatinosus and bacillus mucilaginosus and the like can immobilize nitrogen, dissolve phosphorus, release potassium
Implementation Method 7
bacillus gelatinosus and bacillus mucilaginosus and the like can immobilize nitrogen, dissolve phosphorus, release potassium
Data Source
AI summary
The invention relates to the technical field of agricultural planting, in particular to a controlled-release bacterial fertilizer for peanuts and a preparation method of the special controlled-release bacterial fertilizer. The special controlled-release bacterial fertilizer is composed of an inner layer and an outer layer; after the outer layer is released completely, the inner-layer network structure gradually absorbs water and preserves moisture, and has good slow release and controlled release properties, thereby achieving the gradual release of the inner layer, high fertilizer utilization rate, exerting the efficacy of the microbial agent and facilitating the large-area promotion.