Proper Delay of Phosphorus Application Promotes Wheat Growth and Nutrient Uptake under Low Phosphorus Condition

Huixuan Yi, Shengchao Hu, Yulin Zhang (), Xudong Wang, Zhenqing Xia, Yuting Lei and Min Duan
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Huixuan Yi: College of Natural Resources and Environment, Northwest A&F University, Xianyang 712100, China
Shengchao Hu: College of Natural Resources and Environment, Northwest A&F University, Xianyang 712100, China
Yulin Zhang: College of Natural Resources and Environment, Northwest A&F University, Xianyang 712100, China
Xudong Wang: College of Natural Resources and Environment, Northwest A&F University, Xianyang 712100, China
Zhenqing Xia: College of Agronomy, Northwest A&F University, Xianyang 712100, China
Yuting Lei: College of Natural Resources and Environment, Northwest A&F University, Xianyang 712100, China
Min Duan: Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection (Guangxi Normal University), Ministry of Education, Guilin 541006, China

Agriculture, 2023, vol. 13, issue 4, 1-17

Abstract: It is widely known that root morphology has different response mechanisms at different phosphorus (P) levels. However, the effects of P application times on wheat ( Triticum aestivum L.) root morphology and, therefore, on growth and nutrient uptake are still unclear. In this study, we investigated the feedback from the physiological indexes of wheat on different P application times after planting. Compared with the P application at planting, the shoot biomass with delayed P application for 21 days (d) increased by 11.8% ( p < 0.05). Compared with the P application at planting, the shoot P uptake with delayed P application for 14–21 days increased by 38.4–71.2%, while the shoot N uptake and K uptake with delayed P application for 21 days increased by 16.0% and 14.1% ( p < 0.05). Compared with the P application at planting, P use efficiency, N use efficiency, and K use efficiency with delayed P application for 21 days increased by 16.4%, 12.4%, and 12.4%. Delayed P application for 14–21 days promoted wheat shoot growth, nutrient (P, N, and K) uptake, and their use efficiencies. This is particularly important for optimizing the P fertilizer input and nutrient management for wheat growth.

Keywords: delayed P application; nutrient uptake; P deficiency; phosphatase; wheat growth (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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