Optimizing nitrogen fertilizer for improved root growth, nitrogen utilization, and yield of cotton under mulched drip irrigation in southern Xinjiang, China.

ABSTRACT: The root system plays a crucial role in water and nutrient absorption, making it a significant factor affected by nitrogen (N) availability in the soil. However, the intricate dynamics and distribution patterns of cotton (Gossypium hirsutum L.) root density and N nutrient under varying N supplies in Southern Xinjiang, China, have not been thoroughly understood. A two-year experiment (2021 and 2022) was conducted to determine the effects of five N rates (0, 150, 225, 300, and 450 kg N ha^-1) on the root system, shoot growth, N uptake and distribution, and cotton yield. Compared to the N0 treatment (0 kg N ha^-1), the application of N fertilizer at a rate of 300 kg N ha^-1 resulted in consistent and higher seed cotton yields of 5875 kg ha^-1 and 6815 k

SUBMITTER: Luo Y 

PROVIDER: S-EPMC11455964 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature