1、Optimizing nitrogen fertilizer use for more grain and less pollution

Previous studies have shown that appropriate reduction of nitrogen (N) fertilizer rate can increase crop yield and reduce greenhouse gas emissions (Wu et al., 2014, 2015; Zhang et al., 2018).

2、Localized nitrogen management strategies can halve fertilizer use in

Using a localized nitrogen management model for wheat, maize and rice, this study estimates the environmental and economic benefits of improving nitrogen use efficiency at the county level.

3、Enhancing nitrogen use efficiency in agriculture by integrating

Enhancing nitrogen use efficiency (NUE) is essential for promoting sustainable crop production and mitigating the negative impacts of nitrogen loss, such as water pollution and greenhouse gas emissions.

4、Advances in Nitrogen Use Efficiency of 15N

In multiple studies, nitrogen uptake was maximized when fertilizer was applied during periods of active crop growth, reinforcing the positive correlation between plant growth rate and nitrogen use efficiency (Can et al. 2021).

Boost Crop Growth with High Nitrogen Fertilizers: A Comprehensive Guide

Discover the benefits and application methods of high nitrogen fertilizers, including types, timing, and safety precautions to optimize crop yields and minimize environmental impact.

Nitrogen fertilizers and the future of sustainable agriculture: a deep

On the one hand, nitrogen deficiency limits food production in developing areas, while excessive nitrogen compromises soil fertility, human health, and agricultural and environmental sustainability in the industrialized world.

What Type of Fertilizer to Use on Fruit Trees for Maximum Growth and

Learn how to identify nutrient deficiencies, select the right fertilizers for various fruit trees, and apply them effectively. With tips on timing and specific recommendations, ensure your orchard thrives year-round!

Strategies for high nitrogen production and fertilizer value of plant

The aim of this study was to develop production strategies of plant-based fertilizers to maximize cumulative nitrogen (N) production (equal to N yield by green manure crops), while maintaining a low carbon-to-nitrogen (C:N) ratio, and to test the fertilizer value in organic vegetable production.

Crop responses to nitrogen overfertilization: A review

Current breeding programs should target the development of cultivars with high N-use efficiency to ensure growers that N fertilizer applications can be reduced without a reduction in yields.

Nitrogen use efficiency—a key to enhance crop productivity under a

Nitrogen (N) is an essential element required for the growth and development of all plants. On a global scale, N is agriculture’s most widely used fertilizer nutrient. Studies have shown that crops use only 50% of the applied N effectively, while ...

Using high-nitrogen fertilizers during the mid-to-late growth stage of fruit trees is feasible, but its appropriateness depends on specific conditions and soil properties. During this period, tree growth slows, and nutrient demands decrease. Moderate application of high-nitrogen fertilizers can promote flower bud differentiation, improve fruit set rates, and enhance fruit quality. excessive use may lead to nutrient imbalances, overly vigorous growth, and other issues.

Key Considerations:

1. Growth Characteristics of Fruit Trees During the mid-to-late stage, tree growth slows, and nutrient requirements diminish. Fruit trees rely primarily on stored nutrients to sustain growth, flowering, and fruiting. Under these conditions, moderate nitrogen supplementation supports critical processes like flower bud differentiation and fruit development.

2. Soil Conditions

   • Soil Type: Sandy loam or loamy soils are suitable for high-nitrogen fertilizers due to their good drainage and root accessibility. Clay soils, are less ideal because their compact structure and water-retention properties hinder root development.
   • Soil pH: Acidic soils may bind nitrogen with iron ions, reducing its availability, while alkaline soils form insoluble calcium-nitrogen compounds. Conduct soil tests before application to ensure compatibility.

3. Fertilizer Type and Application High-nitrogen fertilizers (e.g., urea, ammonium nitrate) provide rapid nutrient release. To avoid excesses:

   • Follow the principle of "small doses and frequent applications".
   • Combine with other nutrients (e.g., phosphorus, potassium) to balance soil fertility.

4. Tree Varieties and Growth Stages

   • Varietal Needs: Nitrogen-demanding varieties like apples and pears may require higher doses.
   • Growth Phases: Adjust nitrogen based on stages—e.g., prioritize root and leaf development in saplings, while focusing on fruit expansion and yield in mature trees.

High-nitrogen fertilizers can benefit fruit trees in mid-to-late stages when used judiciously. Success depends on soil testing, controlled dosages, balanced nutrient integration, and consideration of tree-specific needs. Proper management fosters healthy growth, higher yields, and improved fruit quality.