Status Fosfat Organik dalam Tanah Siri Bungor dengan Sistem Tanaman Tunggal dan Giliran
Hussin, Aminuddin and Saad, Abdul Kadir and Abd Rahim, Anuar and Yusop, Mohd Khanif (1984) Status Fosfat Organik dalam Tanah Siri Bungor dengan Sistem Tanaman Tunggal dan Giliran. Pertanika, 7 (3). pp. 5-11.
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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