1、Nitrogen transformations in modern agriculture and the role of biological nitrification inhibition

We examine key recent discoveries in the emerging field of BNI research, focusing on BNI compounds and their specificity and transport, and discuss prospects for their role in improving...

2、The effect of NPK fertilizer with different nitrogen solubility on growth, nutrient uptake and use by chrysanthemum

The effect of nitrogen, phosphorus and potassium (NPK) fertilizer with different nitrogen forms on N, P, K use, uptake and growth of potted chrysanthemum plants during three vegetation phases was observed in two - years experiment.

3、Source and sink mechanisms of nitrogen transport and use

This review integrates the current knowledge regarding inorganic and organic nitrogen management at the whole-plant level, spanning from nitrogen uptake to remobilization and utilization in source and sink organs.

Research Progress on Nitrogen Use and Plant Growth

We reviewed the importance of N, N metabolism and plant growth, plant N physiology and the molecular aspect of N metabolism in this paper. The future development of N use and NUE of plants was also discussed.

Nitrogen effects on total flavonoids, chlorogenic acid, and antioxidant activity of the medicinal plant Chrysanthemum morifolium

A greenhouse experiment with potted soil–quarz mixture studied the effects of nitrogen supply (0, 56, 112, 167, 224, 334, 501, 556, and 668 mg N kg –1) on concentrations and ratios of total flavonoids and chlorogenic acid in the flowers of C. morifolium using spectrophotometric and HPLC methods.

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.

Impacts of Agricultural Nitrogen on the Environment and Strategies to Reduce these Impacts

Understanding nitrogen dynamics and transformations in agroecosystems will help us to manage better the nitrogen resources in these systems, which will increase agricultural sustainability and reduce its impact on the environment and climate.

The role of inorganic fertilizers and their management practices

Nutrient management is the key issue in sustainable soil fertility. N, P, K fertilization aims not only for a high economic return of the investment through optimized yield and quality, but also for minimum environmental hazards.

Cultivation of cut flowers with ammonium as nitrogen source

Chrysanthemums which were fertilized with ammonium showed an improved quality. The durability was extended by 4 days and the percentage of first rate quality plants was increased. A much lower nitrate level was found in the substrate following ammonium fertilization.

Importance and Effect of Nitrogen on Crop Quality and Health

Firstly, soil supply of mineral nitrogen forms is often not suficient for optimal crop growth (biomass) and a producer has, through addition of ni-trogen fertilizers, immediate control over the nitrogen economy of the crop; secondly, correct nitrogen nutrition is crucial for the quality of the crop; and thirdly, losses of nitrogen from cropping ...

Nitrogen fertilizer plays a multifaceted role in chrysanthemum cultivation, including promoting growth, increasing yield, and improving quality. As an essential nutrient for plant development, nitrogen significantly impacts growth. Proper application of nitrogen fertilizer in chrysanthemum cultivation effectively enhances growth, yield, and quality.

First, nitrogen fertilizer promotes root development. Nitrogen, a critical nutrient, stimulates root growth and expansion. Applying appropriate amounts of nitrogen increases root quantity and length, enhancing water and nutrient absorption. This strengthens the plant’s growth and stress resistance.

Second, nitrogen fertilizer boosts leaf growth. It encourages lush, thick foliage, which improves photosynthetic efficiency and yield. Healthy leaves also reduce susceptibility to pests and diseases.

Additionally, nitrogen supports bud formation and flowering. It ensures fuller, more vibrant buds and prolongs flowering time, enhancing floral quality and aesthetic appeal—crucial for commercial production.

Key Methods for Applying Nitrogen Fertilizer in Chrysanthemum Cultivation:

1. Base Application Method: Evenly spread nitrogen fertilizer on the soil surface, followed by deep tillage. Suitable for soils rich in organic matter or low fertility, this method allows roots to absorb nutrients quickly, stimulating early growth.

2. Topdressing Method: Apply nitrogen at different growth stages based on plant condition and soil fertility. Topdressing can be done via foliar spraying or root applications, ensuring timely nutrient replenishment.

3. Foliar Spraying: Dissolve nitrogen fertilizer in water and spray directly onto leaves. This bypasses soil absorption, improving efficiency, especially with high-concentration solutions.

4. Root-Targeted Topdressing: Apply diluted nitrogen solutions near the roots. Effective for low-concentration formulas, this minimizes nutrient loss while promoting root uptake.

Nitrogen fertilizer is vital for chrysanthemum growth, yield, and quality. Optimizing its use enhances economic value and market competitiveness. Mastering application techniques and precautions is key to maximizing benefits.