1、Impacts of Nitrogen Deficiency on Wheat

Dry matter and nitrogen accumulation, partitioning, and translocation in synthetic-derived wheat cultivars under nitrogen deficiency at the post-jointing stage.

2、Nitrogen redistribution during the grain

Our study demonstrates that the remobilization of nitrogen from vegetative parts to grains initiates leaf senescence and is closely correlated with the expression of autophagy-related genes.

3、Response of nitrogen redistribution to irrigation at jointing in winter

The results indicate that additional water at the jointing stage under the condition of irrigation at the flowering stage could delay the senescence of winter wheat leaves in the middle and late grain filling stages.

4、Effect of Delayed Irrigation at the Jointing Stage on Nitrogen

In conclusion, under limited irrigation conditions, delaying watering for 5 to 10 days at the jointing stage can improve the nitrogen and silicon absorption and nutrient status of wheat plants and increase wheat yield.

5、Impacts of Nitrogen Deficiency on Wheat

The impact of N-deficiency on wheat at the seedling stage has been previously reported, but the impact of distinct N regimes applied at the seedling stage with continuous application on filling and maturing wheat grains is lesser known, despite the filling stage being critical for final grain yield and flour quality.

Impacts of Nitrogen Deficiency on Wheat (Triticum aestivum L.) Grain

Dry matter and nitrogen accumulation, partitioning, and translocation in synthetic-derived wheat cultivars under nitrogen deficiency at the post-jointing stage.

Nitrogen Deficiency in Wheat at the Early Stage: Causes, Remedies, and

Nitrogen deficiency is one of the most dangerous and readily remedied issues in wheat. Nitrogen treatment at CRI stage, balanced fertilization, and good soil health can significantly boost crop vigor, tillering, and eventual grain output.

Layered nitrogen application drives changes in nitrogen nutrition

Optimizing nitrogen (N) fertilizer management is essential for improving wheat yield and nitrogen use efficiency, yet the mechanisms by which layered N application regulates crop N nutrition through soil microbial processes across growth stages remain unclear.

(PDF) Impacts of Nitrogen Deficiency on Wheat (Triticum aestivum L

The impact of N-deficiency on wheat at the seedling stage has been previously reported, but the impact of distinct N regimes applied at the seedling stage with continuous application on...

Scouting for Nutrient Deficiency Symptoms in Wheat

Nitrogen: Nitrogen deficient wheat plants are pale green to yellow with chlorosis beginning on lower leaves and gradually progressing upwards. Cell growth, division, and protein synthesis may be slowed.

The jointing stage is a critical phase in wheat development, characterized by deepening root systems, rapid stem elongation, and leaf expansion, which lay the foundation for future flowering and grain formation. Nitrogen fertilizer plays a vital role during this period. Insufficient nitrogen supply can lead to a range of issues that disrupt normal growth and development.

1. Chlorosis: Nitrogen deficiency causes yellowing of leaves due to impaired chlorophyll synthesis, as nitrogen is essential for this process.

2. Growth Retardation: Nitrogen is a primary energy source for plant growth. Deficiency results in stunted plants, reduced tillering, and thin, weak stems.

3. Reduced Stress Resistance: Nitrogen enhances plant resilience. Its absence lowers resistance to diseases, pests, and environmental stresses, increasing vulnerability to pathogens like rust and powdery mildew.

4. Yield Decline: Slowed growth and weakened defenses directly reduce grain output. Additionally, nitrogen is crucial for protein synthesis, so deficiency lowers protein content and impairs grain quality.

5. Poor Grain Quality: Beyond yield losses, kernels become shriveled, protein levels drop, and taste deteriorates.

6. Root System Impairment: Nitrogen is vital for root development. Deficiency leads to weak, shallow roots with reduced absorption capacity.

7. Weakened Photosynthesis: As a key component of photosynthetic machinery, nitrogen shortage diminishes the plant’s ability to convert sunlight into energy.

8. Metabolic Disruption: Nitrogen deficiency disrupts physiological processes, exacerbating slow growth and stress susceptibility.

9. Reproductive Dysfunction: Flowering is delayed, pollen quantity decreases, and seed setting rates decline due to inadequate nitrogen.

10. Increased Disease Incidence: Nitrogen-starved plants are more prone to infections like rust and powdery mildew.

To address these challenges, timely application of appropriate nitrogen fertilizers during the jointing stage is essential. Typically, 10–15 kg of urea per mu (0.067 hectare) meets crop demands. Complementary practices like deep soil loosening and organic fertilizer addition can further optimize nitrogen availability, ensuring healthy wheat development.