Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy
The use of carbonized rice husk biochar improves the fertility and productivity of poor soils in rice-based cropping systems. However, biochar may also influence weed seedling emergence and the efficacy of soil-applied herbicides. Experiments were conducted in a screenhouse to evaluate the effect of...
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| Format: | Journal Article |
| Language: | Inglés |
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Scientific Research Publishing, Inc.
2013
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| Online Access: | https://hdl.handle.net/10568/165710 |
| _version_ | 1855513474316107776 |
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| author | Chauhan, Bhagirath S. |
| author_browse | Chauhan, Bhagirath S. |
| author_facet | Chauhan, Bhagirath S. |
| author_sort | Chauhan, Bhagirath S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The use of carbonized rice husk biochar improves the fertility and productivity of poor soils in rice-based cropping systems. However, biochar may also influence weed seedling emergence and the efficacy of soil-applied herbicides. Experiments were conducted in a screenhouse to evaluate the effect of biochar rates (0, 20, 40, and 80 t·ha?1) and seed burial depth (0, 1, and 2 cm) on seedling emergence of junglerice (Echinochloa colona) and the effect of biochar rates and pendimethalin (0, 500, 1000, and 1500 g·a.i.·ha?1) and pretilachlor doses (0, 300, 600, and 900 g·a.i.·ha?1) on seedling emergence and seedling biomass of junglerice. Data were analyzed using nonlinear regression. The burial depth to inhibit 50% of maximum seedling emergence was 0.76 cm when biochar was not added to soil and the depth increased with an increase in biochar rates for soil. Similarly, compared with the soil with no biochar, the use of bichoar increased the pretilachlor dose to inhibit 50% of maximum emergence or biomass. The pretilachlor dose to inhibit 50% of maximum biomass of junglerice was 100, 130, 240, and 240 g·ha?1 when biochar was added at 0, 20, 40, and 80 t·ha?1. However, the efficacy of pendimethalin was not influenced by biochar rate. The results of this study suggest that rice husk biochar may increase weed seedling emergence from deeper burial depths and may decrease the efficacy of some soil-applied herbicides. |
| format | Journal Article |
| id | CGSpace165710 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Scientific Research Publishing, Inc. |
| publisherStr | Scientific Research Publishing, Inc. |
| record_format | dspace |
| spelling | CGSpace1657102024-12-19T14:11:38Z Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy Chauhan, Bhagirath S. application rates chemical control cultural control echinochloa colona herbicides pendimethalin pretilachlor rice husks seedling emergence seedling growth seeds soil amendments sowing depth weed control weeds The use of carbonized rice husk biochar improves the fertility and productivity of poor soils in rice-based cropping systems. However, biochar may also influence weed seedling emergence and the efficacy of soil-applied herbicides. Experiments were conducted in a screenhouse to evaluate the effect of biochar rates (0, 20, 40, and 80 t·ha?1) and seed burial depth (0, 1, and 2 cm) on seedling emergence of junglerice (Echinochloa colona) and the effect of biochar rates and pendimethalin (0, 500, 1000, and 1500 g·a.i.·ha?1) and pretilachlor doses (0, 300, 600, and 900 g·a.i.·ha?1) on seedling emergence and seedling biomass of junglerice. Data were analyzed using nonlinear regression. The burial depth to inhibit 50% of maximum seedling emergence was 0.76 cm when biochar was not added to soil and the depth increased with an increase in biochar rates for soil. Similarly, compared with the soil with no biochar, the use of bichoar increased the pretilachlor dose to inhibit 50% of maximum emergence or biomass. The pretilachlor dose to inhibit 50% of maximum biomass of junglerice was 100, 130, 240, and 240 g·ha?1 when biochar was added at 0, 20, 40, and 80 t·ha?1. However, the efficacy of pendimethalin was not influenced by biochar rate. The results of this study suggest that rice husk biochar may increase weed seedling emergence from deeper burial depths and may decrease the efficacy of some soil-applied herbicides. 2013 2024-12-19T12:55:23Z 2024-12-19T12:55:23Z Journal Article https://hdl.handle.net/10568/165710 en Open Access Scientific Research Publishing, Inc. Chauhan, Bhagirath S. 2013. Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy. AJPS, Volume 04 no. 07 p. 1345-1350 |
| spellingShingle | application rates chemical control cultural control echinochloa colona herbicides pendimethalin pretilachlor rice husks seedling emergence seedling growth seeds soil amendments sowing depth weed control weeds Chauhan, Bhagirath S. Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy |
| title | Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy |
| title_full | Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy |
| title_fullStr | Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy |
| title_full_unstemmed | Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy |
| title_short | Rice husk biochar influences seedling emergence of junglerice (Echinochloa colona) and herbicide efficacy |
| title_sort | rice husk biochar influences seedling emergence of junglerice echinochloa colona and herbicide efficacy |
| topic | application rates chemical control cultural control echinochloa colona herbicides pendimethalin pretilachlor rice husks seedling emergence seedling growth seeds soil amendments sowing depth weed control weeds |
| url | https://hdl.handle.net/10568/165710 |
| work_keys_str_mv | AT chauhanbhagiraths ricehuskbiocharinfluencesseedlingemergenceofjunglericeechinochloacolonaandherbicideefficacy |