Zhang, X.; Wang, J.; Bai, X.; An, S.; Zheng, Q.; Tang, Z.; Zhi, J. Water, Nitrogen, and Phosphorus Coupling Improves Gray Jujube Fruit Quality and Yield. Preprints2023, 2023111584. https://doi.org/10.20944/preprints202311.1584.v1
APA Style
Zhang, X., Wang, J., Bai, X., An, S., Zheng, Q., Tang, Z., & Zhi, J. (2023). Water, Nitrogen, and Phosphorus Coupling Improves Gray Jujube Fruit Quality and Yield. Preprints. https://doi.org/10.20944/preprints202311.1584.v1
Chicago/Turabian Style
Zhang, X., Zhihui Tang and Jinhu Zhi. 2023 "Water, Nitrogen, and Phosphorus Coupling Improves Gray Jujube Fruit Quality and Yield" Preprints. https://doi.org/10.20944/preprints202311.1584.v1
Abstract
Irrigation and fertilization are indispensable links in the jujube planting industry in southern Xinjiang, China. However, the water and fertilizer integration effects on jujube growth and fruit quality remain unclear. A two-year water and fertilizer optimization coupling test was conducted to determine the optimal water- and nutrient-supply scheme. The three-factor randomized block experiment included water (W), nitrogen (N), and phosphorus (P). According to the principal component analysis of each index, each treatment’s comprehensive score was obtained. Using yield and economic regression models, the theoretical value and yield value of the optimal economic benefit are inferred. When W, N, and P were applied together, the fruit quality and yield of each treatment significantly differed, and the vitamin C, soluble sugar, and sugar–acid ratio increased significantly with an increase in nitrogen fertilizer. However, the titratable acid decreased. An increase in irrigation and nitrogen application significantly increased fruit yield. The comprehensive score was the highest in the N3P3W2 treatment, which improved fruit quality, and the lowest in the N4P3W2 treatment. When the amounts of N, P, and W were 275.56 kg·hm-2, 413.66 kg·hm-2, and 7278.19 m3·hm-2, respectively, the theoretical economic benefit was the best. The N4P3W2 treatment is the optimal treatment.
Keywords
gray jujube; water and fertilizer integration; fruit quality; yield; comprehensive evaluation; yield model; economic model
Subject
Biology and Life Sciences, Plant Sciences
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
