1、Fertilizer application rate and nutrient use efficiency in Chinese

We reviewed 476 papers from 1990 to 2021 to investigate the changes in the conventional application rate (CAR) and nutrient use efficiency (NUE) of fertilizers. The results indicated a decrease in the CAR of nitrogen (N) and phosphorus (P) fertilizers from 1993 to 2020.

2、Appropriate Phosphate Fertilizer Application Rate per Mu for Crops

The appropriate application rate of phosphate fertilizer for crops depends on factors such as the specific crop, soil type, climatic conditions, and fertilization goals.

3、Strategies for improving fertilizer phosphorus use efficiency in

First, we asked what are the dynamics of transformation, xation and mobilization of P fertilizers in soil-cropping fi systems? Second, what are the mechanisms of soil-crop-microbe interactions by which P fertilizer can be ef ciently fi used? Third, how to manipulate the processes of P use in cropping systems?

The Uses and Functions of Phosphate Fertilizer for Water Chestnut

phosphate fertilizer is indispensable for water chestnut cultivation. By adopting scientific application methods and management practices, farmers can unlock its full potential, achieving higher yields, better quality, and sustainable agricultural progress.

NPKGRIDS: a global georeferenced dataset of N, P2O5, and K2O fertilizer

Development of NPKGRIDS adopted a data fusion approach to integrate crop mask information with eight published datasets of fertilizer application rates, compiled from either georeferenced...

Effect of different water and combinations on the sustainable growth of

This study analyzed the effects of different water and fertilizer combinations on chestnut seedling growth, aiming to provide optimal water-fertilizer ratios and lay the groundwork for applying water-fertilizer integration technology.

Fertilizer Types and Calculating Application Rates

Calculate the rate of fertilizer to apply to obtain the proper N rate and also calculate the amount of Fe that is applied at the rate of application used to supply the needed nitrogen.

Frontiers

Research on precise water and fertilizer application conditions, alongside mechanisms that enhance crop quality, yield, and soil regulation, significantly promotes sustainable agricultural development (Peng et al., 2023).

Fertilizer application rates and doses

The article describes the types of fertilizers. Factors and rules to consider in order to calculate the correct fertilizer application rates and doses.

Optimizing phosphorus fertilizer use to enhance water quality, food

We developed a multi-objective framework for optimizing P fertilizer use that considered water quality, food security and social equality. Different optimal objectives yield contrasting results for the geographical distribution of P fertilizer use, crop calorie production and social equality.

In agricultural production, phosphate fertilizer plays a critical role in plant growth and development. optimizing its usage to maximize benefits remains a key consideration. This article explores the ideal phosphate fertilizer application rate for water chestnut crops (per mu) from multiple perspectives.

1. Types and Properties of Phosphate Fertilizers

Phosphate fertilizers include calcium phosphate, ammonium phosphate, potassium dihydrogen phosphate, and others. Their suitability varies based on soil pH, crop requirements, and local climate. Selecting the appropriate type requires evaluating factors such as soil acidity/alkalinity, crop nutrient demands, and environmental conditions.

2. Timing and Methods of Application

Phosphate fertilizers are typically applied as base fertilizer (before planting) or topdressing (during crop growth). For best results:

• Application methods: Use uniform broadcasting or ditch/furrow application to avoid direct contact with crop roots, which can cause root burning (fertilizer damage).
• Timing: Base fertilizer should be incorporated into the soil ahead of sowing, while topdressing depends on crop growth stages.

3. Recommended Application Rates

Dosage depends on crop stage and soil conditions:

• Seedling stage: 10–20 kg/mu.
• Mature stage: 30–50 kg/mu. Note: These values are general guidelines. Adjust based on soil tests, crop variety, and regional practices.

4. Key Factors Affecting Efficiency

• Soil properties: Texture, organic matter content, and NPK balance significantly impact efficacy. For compact soils, add organic amendments to improve structure.
• Nutrient balance: Coordinate phosphate use with nitrogen (N) and potassium (K) to avoid deficiencies or excesses.
• Soil health: Low organic matter soils may require supplemental organic fertilizers to enhance microbial activity and nutrient release.

5. Best Practices

• Split applications: Apply in small amounts multiple times to reduce waste and prevent salt accumulation.
• Environmental considerations: Prioritize eco-friendly fertilizers and minimize residual pollution. Clean up spills or unused materials promptly.

Optimizing phosphate fertilizer use is essential for improving crop yield, quality, and sustainability. By tailoring applications to soil conditions, crop needs, and environmental standards, farmers can achieve efficient nutrient management while safeguarding the ecosystem for future generations.

Note: "Mu" (Chinese unit) is approximately 0.0667 hectares. Adjust translations of "water chestnut" if referring to other crops.