1、The nitrogen fertilizer conundrum: why is yield a poor determinant of

In this study we simulated two contrasting field experiments where crops were grown for 5 and 16 consecutive years under uniform management, but in which yield at N opt was poorly correlated to N opt.

2、Crop responses to nitrogen overfertilization: A review

High nitrogen fertilization rates are detrimental for crop yield. Several quality parameters in fruits and vegetables are negatively affected. Law enforcement is restricting the content of N in certain vegetables.

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、The nitrogen fertilizer conundrum: why is yield a poor

It is commonly assumed that higher yielding crops need more nitrogen, and smaller less, despite some evidence that optimum nitrogen applications are poorly related to yields. In contrasting experiments, we show that year-to-year climatic variations cause the poor correlations.

5、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.

Do Farmers Really Need Nitrogen Fertilizer?

Yes, some of our crops don’t need nitrogen (at least, no nitrogen fertilizer). Our legumes, like soybeans, lentils, peas, and others work symbiotically with soil bacteria, giving the bacteria carbon and getting “fixed” atmospheric nitrogen in return.

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

Long-term application of ammonia-based N fertilizers, such as urea, has increased soil acidity which rendered to soil infertility where crops fail to respond with further application of N fertilizers.

Unlocking Nitrogen

Discover the advantages and disadvantages of nitrogen-based fertilizers, including their impact on crop yields, plant health, and environmental sustainability.

Impacts of Agricultural Nitrogen on the Environment and Strategies to

Current high-input agricultural systems are not sustainable, in part because they rely on finite fossil fuels and in part because of their negative effects on environmental systems.

The nitrogen fertilizer conundrum: why is yield a poor

In this study we simulated two contrasting field experiments where crops were grown for 5 and 16 consecutive years under uniform management, but in which yield at Nopt was poorly correlated to Nopt.

In agricultural production, nitrogen fertilizer is one of the most important fertilizers, playing a crucial role in plant growth and development. not all crops favor nitrogen fertilizers. Some crops require less nitrogen or even dislike it, while others have greater nitrogen demands. Below are examples of crops that do not favor nitrogen fertilizers and the reasons behind this:

1. Corn: Corn has relatively low nitrogen requirements. Although it absorbs some nitrogen during growth, its needs are far lower than those of other crops. Excessive nitrogen application can negatively impact corn, causing excessive stalk elongation and weak stems.

2. Wheat: Similar to corn, wheat also has low nitrogen demands. During growth, wheat primarily absorbs phosphorus and potassium from the soil rather than nitrogen. Thus, moderate nitrogen application has minimal impact on wheat growth and yield.

3. Soybean: Soybeans have high nitrogen requirements. They need significant nitrogen to support leaf growth and photosynthesis. Excessive nitrogen can lead to overgrowth, reduced disease resistance, and stress tolerance. Additionally, over-fertilization may lower soybean quality, such as reduced protein content and poorer taste.

4. Cotton: Cotton requires substantial nitrogen for leaf growth and bud formation. Excessive nitrogen causes overgrowth, weakened disease resistance, and stress tolerance. Over-fertilization may also reduce fiber strength and dull the color of cotton.

5. Potato: Potatoes demand high nitrogen for tuber formation. Excessive nitrogen leads to overgrowth, reduced disease resistance, and stress tolerance. Over-fertilization may cause surface depressions and lighter coloration in potato tubers.

6. Peanut: Peanuts require abundant nitrogen for fruit development and maturation. Excessive nitrogen results in overgrowth, lower disease resistance, and stress tolerance. Over-fertilization may cause uneven nut size and poorer taste.

7. Tobacco: Tobacco requires significant nitrogen for leaf growth and bud formation. Excessive nitrogen causes overgrowth, reduced disease resistance, and stress tolerance. Over-fertilization may lead to yellowing leaves and dulled coloration.

8. Rapeseed: Rapeseed needs high nitrogen for leaf growth and bud formation. Excessive nitrogen leads to overgrowth, weakened disease resistance, and stress tolerance. Over-fertilization may result in yellowing leaves and dulled coloration.

9. Rice: Rice requires substantial nitrogen for leaf growth and bud formation. Excessive nitrogen causes overgrowth, reduced disease resistance, and stress tolerance. Over-fertilization may lead to yellowing leaves and dulled coloration.

10. Sugarcane: Sugarcane demands high nitrogen for leaf growth and bud formation. Excessive nitrogen results in overgrowth, weakened disease resistance, and stress tolerance. Over-fertilization may cause yellowing leaves and dulled coloration.

some crops have lower nitrogen requirements or even dislike excessive nitrogen. These crops often exhibit stronger shade tolerance and adaptability, thriving under low-nitrogen conditions. this does not mean they require no nitrogen. Optimal nitrogen levels remain essential for their growth and development. farmers must apply nitrogen fertilizers rationally based on crop-specific needs.