1、Optimizing nitrogen fertilizer application in Chinese rice production

Optimizing the nitrogen (N) fertilizer use is the key to facilitating the sustainable development of agricultural systems. In this study, a DeNitrification–DeComposition model was used to analyze the effects of N fertilization on yield, profit, and reactive N losses in single-season rice production of China.

2、Application of Nitrogenous Fertilizer in Rice Production: A Review

Different forms of nitrogenous fertilizer are the major sources of nutrients in rice production. Nitrogen affects various physiological and biochemical processes in plant cells that...

3、Improving Nitrogen Use Efficiency in Rice for Sustainable Agriculture

For sustainable agriculture, improving the nitrogen use efficiency (NUE) to decrease N fertilizer input is imperative. In the present review, we firstly demonstrate the role of N in mediating root architecture, photosynthesis, metabolic balance, and yield components in rice.

4、Nitrogen fertilization application strategies improve yield of the rice

The results showed that N fertilization strategies could improve the nitrogen use efficiency and yield of rice, but the response of different rice varieties to N fertilizer...

Optimizing Nitrogen Fertilizer Management Enhances Rice Yield, Dry

NUE is an important index of N uptake in rice, and it can be used as a reference value in N applications to rice during field production. N application has a significant impact on rice growth and development, NUE, and yield.

Global meta

Almost half of global nitrogen (N) fertilizer is applied to rice, wheat and maize, but a large proportion is not directly taken up causing detrimental effects on the environment.

Application and Management of Nitrogenous Fertilizer in Rice Field: A

Rice production can be increased by the application of nitrogenous fertilizer whether organic or inorganic at an appropriate time and place. The fertilizer should be applied in multiple split doses depending on the soil’s nutritional status, crop demand and the sources of nutrients.

Nitrogen (N) use efficiency and yield in rice under varying types and

Of those, nitrogen (N) contributes to crop growth and development due to its position requiring the large amount for crop production.

Optimal nitrogen rate strategy for sustainable rice production

A proposed optimal nitrogen rate strategy together with analysis of an extensive on-farm dataset shows that meeting national rice production targets in 2030 in China is possible while...

Can optimizing nitrogen management improve net ecosystem economic

By substituting a portion of chemical nitrogen fertilizer with organic fertilizer, the nitrogen supply can be prolonged, nitrogen use efficiency can be improved, soil fertility can be enhanced, and yield can be maintained (Jin et al., 2023).

Rice cultivation can utilize nitrogen fertilizer, but its application must be rational and well-managed. Nitrogen fertilizer is one of the essential nutrients for plant growth and significantly impacts the development and yield of cereal crops like rice. excessive use of nitrogen fertilizer can lead to soil acidification, nutrient imbalances, and other issues, which in turn affect rice growth and productivity. the following principles should be followed when applying nitrogen fertilizer:

1. Understand Soil Conditions: Before fertilization, analyze factors such as soil pH, nutrient content, and soil type. Determine whether nitrogen fertilizer is needed and the appropriate dosage based on this information. Generally, acidic soils are more suitable for ammonium-based nitrogen fertilizers, as ammonia is more easily absorbed by plants under acidic conditions. Alkaline soils, benefit more from nitrate-based fertilizers due to their higher water solubility.

2. Select Appropriate Nitrogen Fertilizer Types: Various nitrogen fertilizers (e.g., urea, ammonium nitrate, ammonium chloride) are available. Choose the right type based on soil conditions and crop needs. For example:

   • Urea is suitable for acidic soils and cereals like rice.
   • Ammonium nitrate works well in neutral or slightly acidic soils.
   • Ammonium chloride is ideal for alkaline soils. Additionally, nitrogen fertilizers enriched with microelements (e.g., boron, zinc) can promote comprehensive plant development.

3. Control Application Rates Rationally: The amount of nitrogen fertilizer should align with soil nutrient levels and crop requirements. Excessive application should be avoided to prevent soil acidification and nutrient imbalances. For paddy fields, adjust dosages based on soil tests: reduce usage if soil nutrients are sufficient, and increase if deficient. Ensure balanced application of other nutrients to avoid negative effects from over-reliance on a single nutrient.

4. Apply in Stages: To improve nitrogen use efficiency and reduce environmental pollution, adopt split applications. Divide nitrogen fertilizer into base fertilizer (applied before planting to provide initial nutrients) and topdressing fertilizer (applied during growth stages to meet nutritional demands). Staged application better matches rice’s needs at different growth phases, enhancing both fertilizer efficiency and yield.

5. Optimize Application Methods: Spread nitrogen fertilizer evenly across the field. To minimize loss and waste, incorporate practices like deep soil tilling, mulching, or organic amendments. Adjust irrigation methods and combine with organic fertilizers to improve soil health and nitrogen uptake.

6. Ensure Safe Usage: Handle nitrogen fertilizers cautiously to avoid environmental harm. Avoid direct skin or eye contact, inhalation of dust/gases, and comply with environmental regulations. Proper storage and application prevent ecological damage.

Nitrogen fertilizer can be used in rice cultivation, but scientific and rational application is critical. Select the right fertilizer type and dosage based on soil and crop needs, apply in stages, and follow best practices to maximize efficiency and yield. By doing so, high-quality and high-yield rice production can be achieved sustainably.