Status Fosfat Organik dalam Tanah Siri Bungor dengan Sistem Tanaman Tunggal dan Giliran
An experiment was carried out to ascertain the status of organic phosphorus (P) and its contribution to P source for plants under monoculture (maize) and crop rotation (groundnut and maize) systems. The amount of organic P in both cropping systems was in the range of 40-50% of total P in P fertili...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English Malay |
| Published: |
1984
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| Online Access: | http://psasir.upm.edu.my/id/eprint/2284/1/Status_Fosfat_Organik_dalam_Tanah_Siri.pdf http://psasir.upm.edu.my/id/eprint/2284/ |
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| Summary: | An experiment was carried out to ascertain the status of organic phosphorus (P) and its contribution
to P source for plants under monoculture (maize) and crop rotation (groundnut and maize) systems.
The amount of organic P in both cropping systems was in the range of 40-50% of total P in P fertilized
soils and 70-80% of total P in non P fertilized soils. Mineralization at a rate 0.2 to 16% of the amount of
organic P if/, the soil in a cropping season was detected and this can contribute to 1 to 60 kg P ha'l for the
plants. The C:P ratio in both systems was in the range of 140-160:1 which encouraged mineralization. |
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