A review-chitosan nanoparticles towards enhancing nutrient use efficiency in crops

Area of Science:

• Agricultural Science
• Biotechnology
• Materials Science

Background:

• Conventional fertilization faces challenges with poor nutrient use efficiency, impacting global agriculture.
• Chitosan, derived from chitin, is a versatile biopolymer with applications in agriculture, including nutrient delivery.

Purpose of the Study:

• To explore the potential of chitosan nanoparticles as an effective nutrient carrier in agriculture.
• To review the benefits of chitosan nanoparticles in enhancing crop nutrition and reducing chemical fertilizer use.

Main Methods:

• Review of existing literature on chitosan nanoparticles in agriculture.
• Analysis of chitosan nanoparticles' properties as nutrient sources and carriers.
• Examination of their impact on nutrient uptake and crop yield.

Main Results:

• Chitosan nanoparticles provide essential nutrients (carbon, nitrogen, phosphorus) and act as controlled-release fertilizers.
• They enhance nutrient availability by stimulating microbial and enzymatic activity (e.g., alkaline phosphatase).
• Chitosan nanoparticles trigger nodulation genes, improving nitrogen fixation in legumes and increasing crop nutrient content.

Conclusions:

• Chitosan nanoparticles are biocompatible, biodegradable, and eco-friendly nutrient carriers.
• Their use can significantly reduce chemical fertilizer application, offering economic feasibility and safety.
• Chitosan nanoparticles represent a promising sustainable approach for improving agricultural nutrient use efficiency.