1、Long

Long-term excessive nitrogen (N) application neither increases nor enhances grain yield and N use efficiency (NUE) of maize, yet the mechanisms involving root morphological and physiological characteristics remain unclear.

2、Response of Nitrogen Losses to Excessive Nitrogen Fertilizer

Excessive nitrogen fertilizer application in greenhouse vegetable production (GVP) is of scientific and public concern because of its significance to international environmental sustainability.

3、Higher yield with less nitrogen fertilizer

To increase crop yield, N fertilizer is applied, often at rates far greater than the rates at which crops can consume, resulting in a surplus of N in soils that consequently leads to...

4、Excessive Nitrogen Fertilizer Application Causes Rapid

To maintain good productivity, a large quantity of fertilizers was continuously applied to the soil. Due to low nitrogen (N) use efficiency, excessive nutrients are accumulated in soil profile. As a result, greenhouse soil is often compromised by the secondary soil salinization.

5、Response of Nitrogen Losses to Excessive Nitrogen Fertilizer

Excessive nitrogen fertilizer application in greenhouse vegetable production (GVP) is of scientific and public concern because of its significance to international environmental...

The nitrogen fertilizer conundrum: why is yield a poor

Nitrogen (N) is an essential element for plant growth, and our ability to harness N in its reactive forms through the Haber–Bosch process has allowed farmers to increase crop and pasture production per unit of land, sustaining increasing human populations.

Nitrogen Fertilization I: Impact on Crop, Soil, and Environment

As a result, N fertilizer is usually applied in large quantity to increase crop production throughout the world. Application of N fertilizers has increased crop yields and resulted in achievement of self-sufficiency in food production in many developing countries.

Excessive nitrogen application under moderate soil water deficit

Therefore, the objective of the present study was to investigate the effect of soil water and N stresses on growth, physiological responses, leaf structure, carbon gain and WUE of maize. The plants were subjected to different soil water and N regimes to maturity.

Negative impacts of excessive nitrogen fertilization on the abundance

If quick-acting N fertilizers (such as the urea used in our study) are used, the soil N concentration can be excessive at the early maize growth stage. As a result, the soil diazotrophic bacterial community may be negatively impacted, as observed under the ENF treatment in the current study.

Reducing soil nitrogen losses from fertilizer use in global maize and

Maize and wheat are two major staple foods that collectively contribute two-thirds of the world’s grain supply. The extensive use of nitrogen (N) fertilizers during the cultivation of both...

Is excessive leaf growth caused by overuse of nitrogen fertilizer? This is a common misconception. In agricultural production, nitrogen fertilizer is a critical nutrient element essential for plant growth and development. excessive application of nitrogen can lead to a range of problems, one of which is excessive leaf growth at the expense of fruiting. Below is a detailed explanation of why excessive nitrogen leads to vegetative growth only, along with recommendations to address this issue.

Why Does Excessive Nitrogen Cause Vegetative Growth Only?

1. Physiological Role of Nitrogen: Nitrogen is indispensable for plant growth, playing a vital role in physiological processes such as photosynthesis, protein synthesis, and chlorophyll production. When nitrogen is abundant in the soil, plants prioritize absorbing it to synthesize chlorophyll, resulting in thicker, darker green leaves.

2. Effects of Nitrogen Excess: Overapplication of nitrogen disrupts the balance of other nutrients. Plants may overallocate resources to leaf growth (the primary organ for nitrogen uptake) while neglecting reproductive structures. Excess nitrogen can also impair photosynthetic efficiency and other metabolic processes, leading to poor fruiting.

3. Relationship Between Nitrogen and Fruiting: While nitrogen influences fruit development, it is not the sole factor. Light, temperature, water, soil conditions, and other nutrients also impact fruiting. Improper nitrogen use, even under ideal conditions, can reduce fruit yield or quality.

How to Prevent Vegetative Growth Only?

1. Rational Nitrogen Application: Base fertilization rates and timing on soil tests and crop requirements. Avoid large, single-dose applications to prevent nitrogen accumulation in the soil.

2. Balanced Fertilization: Combine nitrogen with phosphorus, potassium, and micronutrients (e.g., boron, zinc, iron) to promote root development and nutrient absorption.

3. Optimize Crop Management: Select crop varieties and planting densities suited to soil type and climate. For example, use acid-tolerant citrus varieties in acidic soils or increase irrigation for corn in drought-prone areas.

4. Improve Soil Health: Enhance soil structure and organic matter through deep tillage and organic fertilizer addition. This improves water retention, aeration, and nutrient availability.

5. Monitor Soil and Plant Health: Regularly test soil pH, nitrogen levels, and organic matter, and observe plant growth (leaf color, fruit size). Use data to adjust fertilization practices.

6. Adopt Advanced Fertilization Techniques: Utilize technologies like drip irrigation with fertigation, foliar spraying, or drone-assisted fertilization to reduce nitrogen loss and improve efficiency.

7. Strengthen Farmer Education: Provide training on scientific fertilization, emphasizing the risks of excess nitrogen and proper techniques. Encourage participation in sustainable agriculture programs.

8. Implement Economic Incentives: Offer subsidies or rewards for farmers using balanced fertilization and penalize excessive nitrogen use. This incentivizes responsible practices.

9. Enforce Policy and Regulation: Governments should support agricultural research, monitor compliance with fertilization standards, and penalize violations to maintain orderly production.

10. Promote Green Development: Prioritize environmental protection and ecological balance in farming. Advocate for eco-agriculture and circular farming to harmonize production with ecosystem health.

Vegetative growth alone is not solely due to excessive nitrogen. Plant development depends on multiple factors, including light, water, temperature, and soil conditions. Addressing this issue requires a holistic approach that combines balanced fertilization, soil management, and technological innovation to ensure healthy plant growth.