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Effect Of Inorganic And Organic Fertilizer Application On Nitrate Leaching In Wetland Soil Under Field Tomato (Lycopersicon Esculentum ) And Leaf Rape (Brassica Napus )
| Content Provider | International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) |
|---|---|
| Author | Masaka, J. Nyamangara, J. Wuta, M. |
| Copyright Year | 2015 |
| Abstract | The implications of increased application of N inputs to agricultural systems in Africa for nitrate leaching are still only partially understood in Africa. A lysimeter experiment was carried out on a loamy sandy soil in central Zimbabwe in order to determine the effect of cattle manure and mineral N application on nitrate leaching. A cluster of zero-tension (free flowing) lysimeters was established, and leachates and soil samples were analyzed for nitrate N concentration and mineral N content, respectively. Increasing the application rates from 100 kg N fertilizer + 15 Mg manure to 200 kg N fertilizer + 30 Mg manure ha1 increased NO3N leaching by 60 %. Applied N lost in leachate increased by 6 and 19 % for the tomato and rape crops, respectively, when N fertilizer and manure application rate was doubled. Higher mineral N fertilizer and cattle manure applications increase total N lost in leachate. The pollution of groundwater with nitrate in leaf rape cropping in Zimbabwe is potentially higher than that found in the production of tomato for the crop rotation in the current study. |
| File Format | |
| ISSN | 2249720X 22497218 |
| Journal | PeerReviewed |
| DOI | 10.1007/s40003-014-0147-1 |
| Language | English |
| Publisher | Springer India |
| Publisher Date | 2015-01-24 |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Soil Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Food Science Agronomy and Crop Science |