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| Effects of nitrogen and phosphorus uptake by rice planting with dairy manure and fertilizer applied together in a pot experiment |
| Received:September 04, 2018 |
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| KeyWord:rice;nitrogen;phosphorus;fresh dairy manure;soil;water of pot |
| Author Name | Affiliation | E-mail | | WANG Chun-xue | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China
Institute of Tropical Eco-Agriculture Science, Yunnan Academy of Agricultural Sciences, Yuanmou 651300, China | | | SHU Zheng-wen | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | LI Min | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | LI Yuan | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | liyuan@ynau.edu.cn | | CHEN Jian-jun | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | ZU Yan-qun | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | WANG Zhao | College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, China | | | ZHANG Ke-qiang | Dali Experimental Station of Agro-Environmental Protection Institute, MOA, Dali 671004, China | |
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| Abstract: |
| In order to study the role of rice as a wetland plant in preventing non-point source pollution, four fertilization treatments were set up in a potted experiment[which were 100% chemical fertilizer(100%F), 70% chemical fertilizer + 30% dairy manure(70%F+30%M), 50% chemical fertilizer + 50% dairy manure(50%F+50%M), 30% chemical fertilizer + 70% dairy manure(30%F+70%M)], and in each fertilization treatment, rice planting and non-rice planting(UN)were set respectively in this study were used to investigate the absorption of carbon(C), nitrogen(N), and phosphorus(P)from the whole system by rice planting. The results showed that rice cultivation could reduce the pH, chemical oxygen demand(COD), total phosphorus(TP), and total nitrogen(TN)concentrations of basin surface water, especially under the 70%F+30%M treatment. Rice had the most significant effects on reducing the COD, TP, and TN. Compared with non-rice, COD, TP, and TN were reduced by 58.16%, 65.50%, and 72.92%, respectively, under rice planting conditions. P content of grain, stems and leaves of rice with 100% F was the highest. The N content of each part of the 70%F+30%M treatment plants was the highest. The P content of each part of the 50%F+50%M treatment plants was the highest. The seed grain N content of the 30%F+70%M treatment was the highest, whereas the P content of stems and leaves was the highest. Therefore, under the condition of the use of fresh dairy manure use with chemical fertilizer, rice plantings could significantly reduce the pH, COD, TP, TN of basin surface water, and stability of soil TN content, while at the same time increasing the N and P content in rice plants. The water treatment capacity and N content of rice were the best under the 70%F+30%M treatment. |
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