Effects of Living Pterocypsela laciniata and Its Straw on Phosphorus Uptake of Grape Seedlings under Selenium Stress

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Wang, Jun^1 ; Liu, Xingwang^2 ; Wang, Tie^1 ; Yang, Liu^1 ; Liao, Ming'An^1 ; Lin, Lijin^3

Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan

611130, China^1

Heping Primary School, Chengdu, Sichuan, China^2

College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan

611130, China^3

关键词: Available P;    High-to-low;    Phosphorus uptake;    Total p;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/4/042042/pdf
DOI  :  10.1088/1755-1315/310/4/042042

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Based on the selenium stress, the effects of living Pterocypsela laciniata and its straws on phosphorus (P) uptake of grape seedlings were carried out. There were some important results and showed that in parts of grape seedlings. The total P content was lower in roots than that in stems, leaves and shoot. Among five treatments, there was quite different about the total P content. Compared to grape seedlings monoculture, living P. laciniata and its straws could significantly increase the total P content in parts of grape seedlings. Among them, applying the leaf straw of P. laciniata in soil made the total P content the highest. For the total P content in root, stem, leaf and shoot of grape seedlings, it was always ordered from high to low: PLG > PG > PRG > PSG > MG. The available P content in soil was a little changed in relation to the total P content in plants. Applying P. laciniata straws also could increase the available P content. On the contrary, grape seedlings intercropping with P. laciniata seedlings decreased the available content, compared to the monoculture. In a word, living P. laciniata and its straws was good for the growth of grape seedlings and improved the P uptake in plants.