1、Major crop producers apply most nitrogen fertilizer in the spring and

Cotton farmers applied a majority of nitrogen—59 percent—after planting. Winter wheat producers applied 45 percent of nitrogen after planting. Corn farmers applied 22 percent of nitrogen after planting, while spring wheat farmers applied 5 percent after planting.

2、Nitrogen Nutrition in Crops and Its Importance in Crop Quality

In this chapter, we discuss the effects of N fertilization on crop quality of major crops including food, oilseed, horticultural, and fodder crops. In general, in horticultural crops large amounts of fertilizers are being used to maintain high production levels of quantity and quality.

3、Total nitrogen inputs to crops

Annual inputs include nitrogen from the application of synthetic fertilizers alongside organic inputs from manure and crop fixation.

Top 10 Plants That Need High Nitrogen: Every Gardener Should Know

Discover the top 10 plants that thrive in high nitrogen environments. From corn to tomatoes, lettuce to spinach, and more, learn which plants have an insatiable appetite for nitrogen and how to create the perfect conditions for their growth.

我国蔬菜种植系统氮肥利用率及其驱动因子

Abstract: China is a major producer and consumer of vegetables, and the application of large amounts of nitrogen fertilizer is a crucial method for farmers to enhance both the yield and quality of vegetables. However, excessive nitrogen input leads to low nitrogen use efficiency (NUE) in vegetable planting systems, which not only undermines agricultural productivity, but also contributes to ...

Nitrogen Fertilizers: Types, Benefits, And Application Tips

Nitrogen fertilizer is a nitrogen-rich substance, either solid or liquid, widely used in agriculture to promote crop growth and unlock higher yields. Nitrogen (N) is a common component of fertilizers because it is essential for all plants to produce energy in their cells.

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

Cereal crops like rice, wheat, and maize require large amounts of N for healthy growth and higher yields (Linquist et al., 2012). Hence, varieties with higher NUE should be a priority for breeders developing new varieties (Balyan et al., 2016; Mălinaş et al., 2022).

Nitrogen Fertilizers for Crop Growth

Learn how nitrogen fertilizers power plant growth and yield. Explore urea, ammonium nitrate, and NUE solutions for sustainable farming.

Nitrogen input strategies impact fertilizer nitrogen saving by

Xu et al. (2020) analyzed the fertilizer N saving of maize/soybean intercrops around the globe using the fertilizer N equivalent ratio (FNER), which is defined as the relative quantity of N fertilizer used for obtaining the output of the intercrop using sole crops.

Boost Crop Growth with High Nitrogen Fertilizers: A Comprehensive Guide

In this article, we’ll break down the benefits and best practices for using high nitrogen fertilizers on your farm or in your garden. We’ll explore different types of high-nitrogen fertilizers, including synthetic and organic options, as well as timing and safety precautions to ensure optimal results.

Nitrogen fertilizer is one of the three essential nutrients for plant growth, playing a critical role in crop development, yield, and quality. In agricultural production, rational application of nitrogen fertilizer is key to improving crop yields. Below is a detailed analysis of crops with high nitrogen demands and their specific requirements:

1. Rice

Nitrogen Requirements

Rice, as a major food crop, has a significant demand for nitrogen. Studies show that producing 1,000 kg of rice requires approximately 20–30 kg of urea or ammonium sulfate. This is due to its long growth cycle, which includes multiple stages (e.g., tillering, panicle differentiation) requiring continuous nitrogen support.

Application Timing

• First topdressing: 5–7 days after transplanting to promote root and stem development.
• Second topdressing: At jointing stage (20–30 days post-transplanting) to support panicle formation and grain filling.
• Third topdressing: During heading (40–50 days post-transplanting) to improve seed setting and reduce chaff.

Key Considerations

Avoid overapplication to prevent nitrogen leaching and soil salinization. Integrate organic fertilizers for sustainable nutrient use.

2. Maize

Nitrogen Requirements

Maize, a major grain and cash crop, requires 25–30 kg of urea or ammonium sulfate per 1,000 kg of production. Its shorter growth cycle necessitates concentrated nitrogen supply for rapid growth.

Application Timing

• First topdressing: At jointing stage (20–30 days post-transplanting) to strengthen roots and stems.
• Second topdressing: During tasseling (60–70 days post-transplanting) to enhance grain filling.
• Third topdressing: At silking stage (80–90 days post-transplanting) to improve lodging resistance and disease resilience.

Key Considerations

Excessive nitrogen may cause excessive vegetative growth. Balance with phosphorus and potassium fertilizers for optimal nutrition.

3. Wheat

Nitrogen Requirements

Wheat, a globally vital cereal, demands 25–30 kg of urea or ammonium sulfate per 1,000 kg of production. Its extended growth cycle requires sustained nitrogen input.

Application Timing

• First topdressing: At jointing stage (20–30 days post-transplanting) for root and stem development.
• Second topdressing: During heading (50–60 days post-transplanting) to support grain filling.
• Third topdressing: Post-heading to improve disease resistance and stability.

Key Considerations

Overapplication risks excessive straw growth. Combine with phosphorus and potassium fertilizers for balanced nutrition.

4. Soybean

Nitrogen Requirements

Soybeans, an important oilseed and protein crop, require 25–30 kg of urea or ammonium sulfate per 1,000 kg of production. Their long growth cycle demands consistent nitrogen supply.

Application Timing

• First topdressing: At flowering and podding stage (50–60 days post-transplanting) to promote pod formation.
• Second topdressing: Late podding stage for grain filling.
• Regular light applications: Maintain growth vigor and yield stability.

Key Considerations

Excess nitrogen may reduce yield stability. Complement with phosphorus and potassium fertilizers for comprehensive nutrition.

These crops require substantial nitrogen due to their physiological and growth characteristics. fertilization strategies should consider soil conditions, climate, and crop varieties to optimize efficiency. Balancing nitrogen with organic matter and other nutrients ensures sustainable agriculture while maximizing yields.