1、Effect of nitrogen fertilizer on distribution of starch granules in

Thus, N fertilizer not only affects distribution of A-type and B-type but also affects the content and proportion of starch in wheat grains. In this study, we analyzed the distribution of SGs in different regions of endosperm and their response to N.

2、The Effect of Nitrogen Fertilizer on Rhizome Quality and Starch

Optimal nitrogen (N) supply significantly increases the starch content, components, and yield of Nelumbo nucifera. However, the underlying transcriptional mechanism and starch accumulation under dose-dependent nitrogen fertilizer are poorly understood.

3、Effect of nitrogen and phosphorus application on starch characteristics

The application of phosphorus fertilizer led to an increase in starch crystallinity in both nitrogen-efficient rice varieties, consistent with the response of different rice varieties to nitrogen and phosphorus in terms of appearance and chalkiness.

4、Research Progress on Effects of Nitrogen Fertilizer on

As the main component of rice endosperm, starch is closely related to rice quality, especially cooking and eating quality. Reasonable application of nitrogen fertilizer can optimize the structure and physicochemical properties of rice starch and improve rice quality and taste.

Effects of Nitrogen Fertilizer on the Starch Structure, Protein

Nitrogen fertilizer greatly increased the protein content of the outer layer of rice and decreased the short-range ordered structure of starch. The relative crystallinity of starch and the proportion of large granular starch first decreased and then increased.

Effects of nitrogen fertilizer application rate on starch contents and

(4) Nitrogen fertilizer application rates reduced the amylase activity at IES, but increased the amylase activity at LES of the two cultivars. Therefore, nitrogen fertilizer application rate obviously affected the starch contents and properties of sweetpotatoes during storage root expansion.

Combined effects of nitrogen and sulfur fertilizers on chemical

Previous studies have demonstrated that suitable N fertilization can significantly affect the accumulation and physicochemical properties of buckwheat starch.

Effects of nitrogen fertilizer on structure and physicochemical

The application of nitrogen fertilizer affects the structure of rice starch, thus changing its functional properties, which ultimately leads to a change in the quality of both rice cultivars.

Nitrogenous Fertilizer Levels Affect the Physicochemical Properties of

Studies have shown that nitrogen fertilizer affects the content and quality of grain starch. Nitrogen is an important nutrient that increases the grain yield and protein content, but excess nitrogen reduces crop quality [7].

Nitrogen fertilizer affects the cooking quality and starch properties

Nitrogen fertilizer can increase the level of nitrogen metabolism by enhancing the activities of key enzymes in nitrogen metabolism, which culminates in the amplifica-tion of grain protein content and resultant yield (Ren et al., 2023).

Starch is a polysaccharide composed of glucose units linked by α-1,4-glycosidic bonds. It is widely found in plants, animals, and microorganisms. In nature, starch synthesis primarily occurs in the roots, stems, and leaves of plants, as well as in certain bacteria and fungi. Starch serves not only as a major energy reserve for plants but also has multiple biological functions, such as reinforcing cell walls and transmitting intracellular signaling molecules.

Regarding the question of whether starch contains nitrogen fertilizer elements, a detailed analysis can be conducted from the following aspects:

1. Chemical Composition of Starch: Starch is mainly composed of glucose units, which consist of carbon (C), hydrogen (H), and oxygen (O). From a chemical perspective, starch does not contain nitrogen fertilizer elements.

2. The Role of Nitrogen Fertilizer: Nitrogen fertilizer is an essential nutrient for plant growth, playing a critical role in plant development, yield formation, and stress resistance. It promotes leaf growth, enhances photosynthesis, and improves the absorption of water and nutrients.

3. The Relationship Between Starch and Nitrogen Fertilizer: Although starch itself lacks nitrogen, its relationship with nitrogen fertilizer is indirect. As a primary energy reserve, starch content directly impacts plant growth rates and yields. In agricultural production, proper nitrogen fertilization increases crop yields and quality. excessive nitrogen use can lead to soil acidification and groundwater pollution, necessitating scientific management based on soil conditions and crop requirements.

4. Other Functions of Starch: Besides serving as an energy reserve, starch has additional biological roles. For example, it acts as a signaling molecule regulating plant growth and development, functions as a储能 substance in animal metabolism, and serves as a carbon source for microbial metabolic processes. These roles highlight the multifaceted biological significance of starch beyond its chemical composition.

5. Interactions Between Starch and Other Nutrients: In plants, starch interacts with other nutrients. Nitrogen fertilizer promotes root growth, enhancing soil starch absorption, while starch provides energy to aid nitrogen utilization. Additionally, starch acts as a natural protectant against pests and diseases.

While starch does not inherently contain nitrogen fertilizer elements, its indirect relationship with nitrogen is critical for plant growth. As a key energy reserve, starch significantly influences agricultural productivity. Rational nitrogen fertilization remains essential for optimizing crop yields and quality, but careful management is required to avoid environmental harm.