Main Components and Functions of Nitrogen Fertilizers
In the process of plant maintenance, nitrogen is the primary among the three major nutrients essential for plant growth, directly affecting the development and growth of crops. Mastering the correct production and usage methods of nitrogen fertilizers can meet the needs of home gardening and achieve resource recycling.
Core Value of Nitrogen Element
Essential Nutrition for Plant Growth
Nitrogen is a core component of the chloroplasts in plants and is involved in the synthesis of over 90% of the proteins in plant bodies. Experimental data show that the proper application of nitrogen fertilizers can increase the yield of leafy vegetables by 30%-50%.
Nutrient Conversion Mechanism
Nitrogen is absorbed by plant roots in the form of硝酸盐 and forms amino acid chains under photosynthesis. These amino acids combine to form proteins, supporting plant cell division and the generation of new tissues.
Analysis of Practical Application Scenarios
Stem and Leaf Development Promotion
For leafy crops like lettuce and spinach, nitrogen fertilizers can significantly increase leaf thickness and luster. After application, darkening of leaf color can be observed within 3-5 days, and thickening of stems becomes evident after 10 days.
Multi-functional Insect Repellent Formula
Mixing nitrogen fertilizer with soapnut liquid in a 1:200 ratio can create a natural insect repellent. Spraying once a week can effectively prevent and control pests like aphids, especially on ornamental plants like roses and Chinese roses.
Environmental-friendly Homemade Process
Material Selection Criteria
Preferred materials with high plant protein content, such as soybean dregs and expired soy milk, can be combined with citrus peel to increase fermentation activity. Animal-based materials should be avoided to prevent the production of odors.
Key Points of Fermentation Control
Use the layered filling method: place 5 cm of garden soil at the bottom, put the raw materials in the middle, and cover the top with 3 cm of wood ash. Open the lid and stir once a week, maintaining a 30℃ environment to shorten the fermentation period to 2 months.
Identification Method of the Final Product
High-quality liquid fertilizers are amber in color, with a pH value between 6.5-7.0 and no visible suspended matter. Solid fertilizers should have a dark brown granular structure, no odor, and disperse when in contact with water.
Through scientific proportioning and standardized operations, the efficacy of homemade nitrogen fertilizers can reach 70%-80% of commercial fertilizers. It is recommended to use them primarily for ornamental plants and green leafy vegetables, controlling the amount for fruiting crops to prevent excessive growth. Regularly testing the soil EC value and using phosphorus and potassium fertilizers in combination can yield better results.