Fate of field-applied labelled fertilizer nitrate on sandy soils
A field study to determine the recovery and balance of N-15 labelled fertilizer N was conducted on barley (Hordeum vulgare L.) and on maize (Zea mays L.) in the sandy area of Belgium. The barley was fertilized with 60 kg N/ha with KNO3 enriched with 2.057 At. % N-15 excess, while the maize received...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
1983
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| Online Access: | http://psasir.upm.edu.my/id/eprint/39453/1/40.%20Fate%20of%20field-applied%20labelled%20fertilizer%20nitrate%20on%20sandy%20soils.pdf http://psasir.upm.edu.my/id/eprint/39453/ |
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| Institution: | Universiti Putra Malaysia |
| Language: | English |
| Summary: | A field study to determine the recovery and balance of N-15 labelled fertilizer N was conducted on barley (Hordeum vulgare L.) and on maize (Zea mays L.) in the sandy area of Belgium. The barley was fertilized with 60 kg N/ha with KNO3 enriched with 2.057 At. % N-15 excess, while the maize received 65 kg N/ha KNO3 labelled with 4.877 At.% N-15 excess. The amount of fertilizer N recovered in the harvested plant part was 79% and 84%, while the amount remaining in the soil was 12% and 11% in the barley and maize plot, respectively. The high yield and high fertilizer N recovery was attributed to low rainfall and N application as side dressing. Statistical analyses showed that the results obtained from the N-15 plot can be extrapolated to the whole field |
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