1、Frontiers

Therefore, to highlight suitable N management practices and factors affecting their efficacy, we conducted the first comprehensive global meta-analysis to assess the key factors influencing N fertilization efficiency in wheat and accounting for the differences in REN and yield.

2、Plant nitrogen uptake preference and drivers in natural ecosystems at

This study shows clear climatic patterns and different influencing factors of plant NH 4+ and NO 3− preference, which can contribute to the accurate prediction of N constraints on ecosystem productivity and soil carbon dynamics.

3、Global evaluation of key factors influencing nitrogen fertilization

Some meta-analyses conducted in recent years investigated the impact of nitrogen (N) fertilizer on crop yield and gaseous emissions, but most are region-specific and …

4、Nitrogen fertilization and soil nitrogen cycling: Unraveling the links

In our study, we unveiled a potential correlation that synthesized multiple environmental factors, NFGs, and nitrogen transformation rates (Fig. 7), providing insights into how nitrogen fertilization shaped the intricate dynamics of soil nitrogen cycling.

我国蔬菜种植系统氮肥利用率及其驱动因子

A random forest model was used to identify and rank the importance of the different driving factors influencing nitrogen efficiency. The effects of various management practices on NUE were evaluated quantitatively using a meta-analysis.

(PDF) Global evaluation of key factors influencing nitrogen

However, various factors affecting yield and N fertilizer efficiency in wheat crops on a global scale are not extensively studied, thus highlighting the need for a comprehensive...

Effects of Nitrogen Application Strategies on Yield, Nitrogen Uptake

In this study, a field plot trial with five N fertilization application strategies was conducted in the maize field from 2021 to 2022 in the Ningxia Yellow Irrigation District, Northwest China.

Spatial Differences and Driving Factors of Aboveground Nitrogen Uptake

Aboveground N uptake, yield, and mean annual temperature were the most important factors affecting N 100. The N 100 showed a significant quadratic decrease with increasing yield (P <0.01), and grain yield was a good predictor of N 100.

Nitrogen availability in soil controls uptake of different nitrogen

The uptake preferences and uptake rates were modulated by soil N availability that was defined by climate, soil properties, and intrinsic characteristics of the N form.

Fates and controlling factors of nitrogen fertilizers in relation to

Understanding the fate and controlling factors of nitrogen (N) fertilizer after the application season of 15 N fertilizer added in a cropping system is key for improving crop yield and N use efficiency (NUE) and reducing its loss.

The reasons for increased nitrogen fertilizer uptake can be elaborated from the following aspects:

1. Plant Physiological Needs

Nitrogen is one of the essential nutrients for plant growth, playing a critical role in development, reproduction, and overall vitality. Nitrogen fertilizers provide plants with the necessary nitrogen to promote cell division, elongation, photosynthesis, and respiration, thereby accelerating growth rates and yields. Additionally, nitrogen improves crop quality, enhancing fruit taste and nutritional value. Thus, increasing nitrogen fertilizer application boosts the efficiency of nitrogen absorption, supporting robust plant growth.

2. Soil Environmental Conditions

Soil nitrogen content directly affects a plant’s capacity to absorb nitrogen. When soil nitrogen levels are low, plants secrete enzymes like nitrate reductase to convert nitrate into ammonia, enhancing absorption. Organic matter in the soil also influences nitrogen uptake by supplying nutrients and stimulating microbial activity, which regulates nitrogen transformation and release. Increasing organic fertilizer use thus elevates soil nitrogen stability and availability, promoting efficient absorption.

3. Crop Species Characteristics

Different crops exhibit varying nitrogen demands and absorption capacities. Nitrogen-loving species (e.g., legumes, vegetables) require higher nitrogen levels, while drought-tolerant or poor-soil-resistant plants (e.g., cacti, camel thorn) demand less. Fertilization strategies should align with species traits: apply sufficient nitrogen to high-demand crops while avoiding overconsumption of soil nitrogen in low-demand species.

4. Fertilization Techniques and Methods

Optimizing fertilization practices is key to improving nitrogen use efficiency.

• Timing and Dosage: Adjust nitrogen applications based on growth stages and soil conditions. For example, provide moderate nitrogen early in growth but reduce it later to prevent soil depletion.
• Application Methods: Deep placement or stratified fertilization minimizes losses from volatilization or runoff. Targeted layering matches nutrients to soil profiles.
• Crop Rotation and Mulching: Rotation diversifies soil microbiota, enhancing fertility, while mulching reduces water loss and nitrogen leaching.

5. Climatic and Seasonal Factors

Climate and seasons significantly impact nitrogen uptake.

• High Temperature and Drought: Intense heat increases leaf transpiration, accelerating soil moisture loss and reducing nitrogen absorption. During dry seasons, reduce nitrogen applications or implement water-saving measures.
• Seasonal Adjustments: Prioritize nitrogen in spring (critical growth phase) and lower inputs in summer to avoid soil exhaustion.

Factors influencing nitrogen fertilizer uptake include plant physiological needs, soil conditions, crop traits, fertilization methods, and climatic variables. To maximize efficiency and sustainability, integrate these considerations into fertilization practices. Proper soil management and environmental protection measures are essential for long-term agricultural viability.

This translation maintains technical accuracy while ensuring clarity and readability for an international audience. Let me know if further refinements are needed!