Buletin KINDAI

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Browsing Buletin KINDAI by Author "Balittra"

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    PEMUPUKAN KALIUM PADA PADI GOGO DI LAHAN KERING BERIKLlM BASAH KALIMANTAN SELATAN (Vol. 5 No. 1 1994)
    (Balittra, 1994-06) Achmadi Jumberi, Murjani Imberan, Nurita, Balittra; Balittra
    Potassium fertilizer application for upland rice on dryland- wet climate of South Kalimantan. Potassium fertilizer experiments on upland rice were conducted at Bumi Asih, Pelaihari during rainy season of 1992/1993. Two experiments have been conducted to study: (1) The effects of KGI fertilizer and ash of husk on upland rice; and (2) The application time and dosage of potassium fertilizer for upland rice. The first experiment used RGBD with three replication, and the second experiment used factorial treatment in RGBD with four replication. Laut tawar variety is grown at plot size of 8.5 x 6.0 m and 5.0 x 6.0 m for the first and second experiment, respectively. All plots were treated with NP (90-90) and applied in furrow along the rows of rice plant. The results of the experiment indicated that: (1) KGI fertilizer and ash of husk can increase K availability in the soils, and affected the growth and yield of upland rice in dryland-wet climate. (2) The basal application of potassium fertilizer was as good as the split application (basal and 30 day after planting) on growth and yield upland rice. (3) The yield of upland rice at 60 kg/ha K20 (3.31 t1ha and 3.52 t1ha) was as high as yield of upland rice at 90 kglha and 120 kglha K20. (4) The muriate of potash increase yield higher than that of ash of husk. (5) Upland rice showed linear respons to ash of husk with dosages up to 300 kg/ha. PENDAHULUAN