1、Frontiers

It emphasizes the available nitrogen content in the soil, this article discussing nitrogen uptake and utilization by plants, including aspects such as nitrogen translocation, distribution, the root system, and the rhizosphere environment of primary crops.

2、Soil health contributes to variations in crop production and nitrogen

We show that soil health is responsible for approximately 12% and 22% of global variations in crop production and nitrogen use efficiency, respectively.

3、Legume–Non

Leguminous cover crops outperformed non-legumes in enhancing nitrogen availability, reflecting biological nitrogen fixation. Mixed-species cover crop mixtures showed superior benefits over monocultures, likely due to complementary effects on nutrient cycling and soil structure.

4、Organic amendments combined with moderate nitrogen rate significantly

Organic amendments, such as straw, animal manure and biochar, have attracted considerable attention due to their ability to enhance soil nutrients and structure [9, 10]. Among them, crop straw are the most widely used organic amendments due to its abundance, low cost and in situ nutrient recycling.

Top Cover Crops That Fix and Enhance Soil Nitrate

This article explores the top cover crops that not only fix nitrogen but also enhance soil nitrate levels, improving overall soil fertility and contributing to sustainable farming practices.

Nitrogen availability in soil controls uptake of different nitrogen

Here we measured in situ plant uptake of 13 inorganic and organic N forms by dominant species along a 3000 km transect spanning temperate and alpine grasslands. To generalize our experimental findings, we synthesized data on N uptake from 60 studies encompassing 148 plant species world-wide.

Global mean nitrogen recovery efficiency in croplands can be enhanced

Enhancing nitrogen use efficiency can improve global food production while minimizing environmental damage.

Enhancing nitrogen use efficiency in agriculture by integrating

This review has explored a range of strategies to enhance NUE, including traditional agronomic practices such as split nitrogen application and controlled-release fertilizers, as well as precision agriculture techniques that optimize fertilizer use based on real-time soil and crop conditions.

Optimizing nitrogen application increases strip

Nitrogen (N) is an essential element for increasing crop yields and improving N use efficiency (NUE) is crucial for both yield enhancement and environmental protection [4]. Appropriate N application can increase yields and economic benefits.

Depth

Our findings highlight the depth-dependent impact of legumes on nitrogen fixation and the critical interaction between soil carbon degradation and nitrogen fixation, providing insights into carbon management in legume cultivation practices to enhance nitrogen fixation in future agriculture.

In agricultural production, nitrogen fertilizer is a critical component for crop growth. excessive use of nitrogen fertilizer can lead to soil and water pollution. rational application of nitrogen fertilizer is key to improving crop yield and quality. The following crops can help increase nitrogen content in the soil:

1. Soybeans: Soybeans are a significant source of nitrogen, providing substantial amounts of nitrogen to the soil. Their root systems absorb nitrogen from the soil, and through photosynthesis in their leaves, they convert this nitrogen into essential nutrients for plant growth. Additionally, soybeans can be rotated with other crops to enhance soil nitrogen levels.

2. Peanuts: Peanuts are another important nitrogen source, enriching the soil with nitrogen. Their roots absorb soil nitrogen, which is then transformed into growth nutrients via leaf photosynthesis. Like soybeans, peanuts can be rotated with other crops to boost soil nitrogen.

3. Corn: As one of the world’s most important grain crops, corn has high yields and nutritional value. Its root system absorbs soil nitrogen, which is converted into usable nutrients through photosynthesis. Corn can also be rotated with other crops to improve soil nitrogen content.

4. Wheat: Wheat, a major global cereal crop, offers high yields and rich nutrition. Its roots extract nitrogen from the soil, and photosynthesis in its leaves converts this nitrogen into vital growth substances. Rotating wheat with other crops further increases soil nitrogen.

5. Rice: Rice, a staple food crop, is known for its high productivity and nutritional benefits. Its root system absorbs soil nitrogen, which is processed into essential nutrients through leaf photosynthesis. Rotating rice with other crops enhances soil nitrogen levels.

6. Cotton: Cotton, an economically valuable crop, contributes significantly to soil nitrogen. Its roots absorb nitrogen, which is converted into growth nutrients via photosynthesis. Rotating cotton with other crops helps maintain soil nitrogen.

7. Potatoes: Potatoes, a high-yielding and nutritious food crop, absorb soil nitrogen through their roots and transform it into essential nutrients through photosynthesis. Rotating potatoes with other crops improves soil nitrogen.

8. Sweet Potatoes: Sweet potatoes, another important food crop, offer high yields and rich nutrition. Their root systems absorb soil nitrogen, which is converted into growth nutrients via leaf photosynthesis. Rotating sweet potatoes with other crops boosts soil nitrogen.

9. Green Beans: Green beans, a nutritious legume, contribute to soil nitrogen. Their roots extract nitrogen from the soil, and photosynthesis converts it into usable nutrients. Rotating green beans with other crops enhances soil nitrogen content.

10. Mung Beans: Mung beans, a high-protein crop, help enrich soil nitrogen. Their root systems absorb nitrogen, which is transformed into growth nutrients through photosynthesis. Rotating mung beans with other crops improves soil nitrogen levels.

these crops serve as excellent natural nitrogen sources. They absorb nitrogen from the soil through their root systems and convert it into essential nutrients via photosynthesis. By strategically rotating these crops, farmers can effectively increase soil nitrogen content, promoting sustainable agricultural development.