1、Potato tubers contamination with nitrate under the influence of nitrogen fertilizers and spray with molybdenum and salicylic acid

The addition of large quantities of nitrogen fertilizers is usually necessary to ensure profitable production of potato crop because soil nitrogen is associated with organic matter and is not readily available to the plant. The plant absorbs nitrogen on two different forms, ammonium or nitrate.

2、Potato in response to nitrogen nutrition regime and nitrogen fertilization

There is no unified rate of N fertilizer application for potatoes. There is a quantitative link between the content of nitrate N in soil and potato productivity. The maximum possible potato yield can be achieved by leveling the nitrate N to 22 mg/kg of soil.

3、Impact of Nitrogen Fertilizer and Foliar Spray of Selenium on Growth, Yield and Chemical Constituents of Potato plants

Results showed that nitrogen application resulted in an increase in the vegetative growth, tuber yield and quality parameters as compared with the untreated plants. Data also demonstrated that selenium application promoted plant growth, tuber yield and quality over the control treatments.

4、Impact of integrated management of nitrogen fertilizers on yield and nutritional quality of potato: Journal of Plant Nutrition: Vol 41 , No 19

The aim of this study was to investigate the influence of different compositions of nitrogen (N) sources on yield and nutritional quality in potato cultivars (Solanum tuberosum L.).

5、Response of Potato (Solanum tuberosum L.) to Nitrogen Fertilizer Application at Angecha, Southern Ethiopia

Nitrogen is one of the most limiting essential nutrients for plant growth and development. Its fertilizations play an important role in the balance between vegetative and reproductive growth of potato.

Effects of Different Nitrogen Application Rates on Starch Accumulation, Starch Synthase Gene Expression and Enzyme Activity in Two Distinctive Potato

Nitrogen (N) is the most important nutrient for potato growth, and many studies exist on the effects of N fertilizers on potato tuber yield, starch content and environmental pollution.

Nitrogen Nutrition in Crops and Its Importance in Crop Quality

Understanding the role of nitrogen and its metabolic interaction in crops is an important step toward increasing productivity without compromise on quality. An attempt has been made to outline the effect of N nutrition on crop quality with emphasis on present strategies and future perspectives.

Influence of applied nitrogen on potato part I: Yield, quality, and Nitrogen uptake

A two-year field investigation was conducted to evaluate the effects of applied N on tuber yield and quality, dry matter production and N uptake of potato (Solanum tuberosum L. var. Russet Burbank) grown on irrigated sandy soils in Michigan.

Application of Manures and Fertilizers

Manures and fertilizers contain one or more of the essential elements, e.g., nitrogen, phosphorus, potassium, calcium, magnesium, etc. They are applied to soils to encourage the growth of crops. Soil or plant analysis forms the basis for the amount of manures and fertilizers to be added.

The nitrogen content of potato (Solanum tuberosum L.) tubers in relation to nitrogen application—the effect on amino acid composition and yields

Abstract The effect of nitrogen application on the nitrogen content and yield of amino acids from potato tubers was studied in one experiment in 1983 and two in 1984. Increasing fertiliser N over the range 0–250 kg ha −1 raised tuber nitrogen concentrations from 0.68–0.81 to 1.27–1.49% DM.

The role of nitrogen fertilizer in potato spraying mainly includes the following aspects:

1. Promoting Growth and Development Nitrogen fertilizer is one of the essential nutrients for plant growth. It provides nitrogen required for photosynthesis, thereby accelerating potato growth and development. During the growing process, nitrogen fertilizer effectively increases yield and quality, resulting in larger, more flavorful potatoes with improved texture.

2. Enhancing Stress Resistance Nitrogen fertilizer strengthens a plant’s ability to withstand environmental stress. In potatoes, it boosts drought resistance, flood tolerance, and pest/disease resilience, enabling better adaptation to adverse conditions.

3. Advancing Flower Bud Differentiation Nitrogen stimulates flower bud formation, prompting potatoes to transition faster into reproductive growth. This accelerates the fruiting stage, enhancing economic value by shortening the growth cycle.

4. Improving Quality Nitrogen fertilizer enhances taste and nutritional content. It promotes the synthesis of starch, proteins, and other compounds, leading to better flavor, finer texture, and overall superior quality.

5. Extending Storage Life By improving disease resistance, nitrogen fertilizer reduces spoilage during storage. Potatoes treated with nitrogen are less prone to rot or decay, prolonging shelf life and maintaining post-harvest freshness.

6. Reducing Production Costs Higher yields per unit area lower cultivation costs. Nitrogen fertilizer maximizes crop output, increasing profitability and reducing resource expenditure.

7. Boosting Market Competitiveness Enhanced quality and yield make nitrogen-treated potatoes more attractive to consumers. Superior appearance, taste, and consistency strengthen market appeal and competitiveness.

8. Supporting Sustainable Agriculture Rational nitrogen application minimizes environmental harm. Proper dosing prevents soil acidification, salinization, and excessive chemical runoff, aligning with sustainable farming practices.

nitrogen fertilizer plays a critical role in potato cultivation. When applied scientifically, it optimizes growth, yield, quality, and cost-efficiency while promoting environmental sustainability. Farmers should tailor nitrogen use to soil conditions and crop needs for optimal results.