1、Interaction among Fertilizers (Compatibility)

When preparing fertilizer solutions for nutrigation , each component solubility must be considered in order to avoid possible precipitate . The following mixtures reduce solubility and form the following sedimentations.

2、Ammonium Fertilizers

Ammonium fertilizers are defined as inorganic fertilizers produced by the fixation of atmospheric nitrogen (N2), characterized by a typical δ15N value range between −6‰ and +6‰. You might find these chapters and articles relevant to this topic.

3、Fertilizer Types and Calculating Application Rates

Meeting these N-P2O5-K2O (sometimes abbreviated to N-P-K) requirements without overap-plying any of these nutrients is possible by blending various types of fertilizer to give the correct N-P2O. K2O ratio. This allows you to apply the correct rate of a particular blended fertilizer.

4、Nutrient Content of Fertilizer Materials

Nutrient Content of Fertilizer Materials eference guides to fertilizer materials. These materials may be used alone or blended with other fertilizer mate ials to form a multinutrient fertilizer. The actual nutrient content may vary from what is lis ther materials blended with the product. Most values are for the fertilizer-

5、How to Select the Right Fertilizer for Hydroponics

Calcium and magnesium ratio should be 3 – 5 mg∙L-1 calcium to 1 mg∙L-1 magnesium. If there is more calcium than this ratio, it can block the ability of the plant to take up magnesium, causing a magnesium deficiency.

How to Use Ammonium Phosphate Fertilizer? For Optimal Growth

MAP (Monoammonium Phosphate) has a ratio of 11-52-0 N-P2O5-K2O, while DAP (Diammonium Phosphate) has a ratio of 18-46-0 N-P2O5-K2O. DAP contains a higher percentage of nitrogen.

Understanding NPK Sources and Ratios – Emerald Harvest

Ammonium phosphate: Available as mono ammonium phosphate (MAP) and diammonium phosphate (DAP), these are produced by reacting rock phosphate with phosphoric acid and ammonia.

How to Calculate a Fertilizer Ratio

If your soil test report recommends applying 1.5 lb of nitrogen, 0.5 lb of phosphate, and 0.5 lb of potash per 1000 sq ft, you should apply a fertilizer with a ratio of 3-1-1 since you need three times as much nitrogen as phosphate and three times as much nitrogen as potash.

Fertilizer Materials and Soil Nutrient Amendment

The basic calculation formula for liquid fertilizers is similar to solids, but the density of the liquid fertilizer must be known before calculating the amount of fertilizer to apply.

Ammonium Phosphate Fertilizer: A Comprehensive Guide to Boosting Crop

Choose Appropriate Fertilizer Formulation: Select MAP, DAP, or ammonium polyphosphate based on soil and crop needs. Calculate Fertilizer Rate: Determine the required amount of fertilizer based on crop nutrient requirements and soil test results.

In agricultural cultivation, the rational application of chemical fertilizers is crucial for improving crop yields and quality. Ammonium carbonate (a key nitrogen-based fertilizer) and phosphate fertilizers are two essential components that play vital roles in soil nutrient supply, plant growth, and development. how can the ratio of these two fertilizers be scientifically optimized to achieve the best results? This article explores the ideal ratio of ammonium carbonate to phosphate fertilizer and provides practical recommendations.

1. Understanding the Roles of Ammonium Carbonate and Phosphate Fertilizer

• Nitrogen (N): The nitrogen in ammonium carbonate primarily originates from ammonia water. Nitrogen is indispensable for plant growth, promoting leaf development, photosynthesis, and yield enhancement. It also strengthens root systems, improves nutrient absorption, and boosts resistance to pests and diseases.

• Phosphorus (P): Phosphorus, a micronutrient in phosphate fertilizers, is essential for plant growth. It stimulates root development, enhances water and nutrient uptake, and promotes flower bud formation and fruit maturation, thereby improving crop quality and yield.

2. Determining the Optimal Ratio of Ammonium Carbonate to Phosphate Fertilizer

• Adjust Ratios Based on Crop Needs: Different crops have varying nitrogen and phosphorus requirements. For example, legumes demand higher nitrogen, while gramineous crops require relatively lower nitrogen-to-phosphorus ratios. When applying fertilizers, adjust the ratio according to crop type and growth stages. Generally, increase ammonium carbonate for legumes and phosphate fertilizer for gramineous crops.

• Consider Soil Conditions: Soil nutrient content and structure affect fertilizer absorption. If soil nitrogen levels are low, increase ammonium carbonate; if phosphorus is deficient, prioritize phosphate fertilizer. Additionally, factor in soil pH and organic matter content to design a scientific fertilization plan.

• Account for Climate: Environmental factors like temperature and rainfall influence crop nutrient needs. In hot, rainy conditions, crops require more nitrogen (increase ammonium carbonate); in dry, low-rainfall environments, phosphorus demand rises (increase phosphate fertilizer).

3. Implementing Scientific Fertilization Methods

• Uniform Application: To ensure balanced nutrient uptake, mix ammonium carbonate and phosphate fertilizer in the correct ratio and distribute evenly on soil surfaces or in furrows. This prevents localized over-fertilization, nutrient waste, or soil salinization.

• Timely Fertilization: Apply fertilizers at key growth stages. Use higher nitrogen ratios during early growth to promote root development, and shift to phosphorus-rich blends during flowering and fruiting. Monitor soil nutrient changes and adjust plans to maintain adequate supply.

• Combine with Organic Fertilizers: Organic fertilizers (e.g., farmyard manure, green manure, animal compost) improve soil structure and microbial activity. Mixing them with chemical fertilizers enhances nutrient utilization and reduces environmental pollution. Select organic materials based on soil type and crop needs.

4. Prioritizing Environmental Protection and Sustainability

• Minimize Fertilizer Loss and Pollution: Excessive chemical use can disrupt soil balance and contaminate groundwater. Follow regulations, control dosages, and adopt practices like crop rotation and cover crops to reduce runoff. Choose low-toxicity, low-residue fertilizers to limit environmental harm.

• Embrace Biological Pest Control: Integrate eco-friendly pest management (e.g., introducing natural predators or microbial agents) to reduce chemical pesticide use. This protects ecosystems and human health while maintaining crop productivity.

Rational use of ammonium carbonate and phosphate fertilizer is critical for maximizing crop yields and quality. By understanding their functions, optimizing ratios, employing scientific methods, and prioritizing sustainability, farmers can develop effective fertilization strategies. Such practices not only ensure agricultural productivity but also contribute to environmental conservation.