Liming reduces soil phosphorus availability but promotes yield and P uptake in a double rice cropping system
| Autor: | Natasja van Gestel, Shan Huang, Ping Liao, Kees Jan van Groenigen, Yongjun Zeng, Mart B.H. Ros, Jun Zhang, Zi-ming Wu, Yanni Sun |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
phosphatase activity Agriculture (General) Field experiment Soil acidification Plant Science engineering.material complex mixtures 01 natural sciences Biochemistry S1-972 Food Animals Soil pH Duurzaam Bodemgebruik Cropping system Incubation Lime Sustainable Soil Use Ecology Chemistry Crop yield food and beverages 04 agricultural and veterinary sciences crop yield phosphorus availability subtropical Agronomy 040103 agronomy & agriculture engineering 0401 agriculture forestry and fisheries Paddy field Animal Science and Zoology soil acidification Agronomy and Crop Science 010606 plant biology & botany Food Science |
| Zdroj: | Journal of Integrative Agriculture 19 (2020) 11 Journal of Integrative Agriculture, Vol 19, Iss 11, Pp 2807-2814 (2020) Journal of Integrative Agriculture, 19(11), 2807-2814 |
| ISSN: | 2095-3119 |
| Popis: | Liming is often applied to alleviate soil acidification and increase crop yield on acidic soils, but its effect on soil phosphorus (P) availability is unclear, particularly in rice paddies. The objective of this study was to examine the effect of liming on rice production, yield and P uptake in a three-year field experiment in a double rice cropping system in subtropical China. We also conducted an incubation experiment to investigate the direct effect of liming on soil available P and phosphatase activities on paddy soils in the absence of plants. In the incubation experiment, liming reduced soil P availability (measured as Olsen-extractable P) by 14–17% and inhibited the activity of soil acid phosphatase. Nonetheless, lime application increased grain yield, biomass, and P uptake in the field. Liming increased grain yield and P uptake more strongly for late rice (26 and 21%, respectively) than for early rice (15 and 8%, respectively). Liming reduced the concentration of soil available P in the field as well, reflecting the increase in rice P uptake and the direct negative effect of liming on soil P availability. Taken together, these results suggest that by stimulating rice growth, liming can overcome direct negative effects on soil P availability and increase plant P uptake in this acidic paddy soil where P is not the limiting factor. |
| Databáze: | OpenAIRE |
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