| NIM | A1D017010 |
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| Namamhs | WIDIA SINURAT |
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| Judul Artikel | STUDI AGIHAN K TANAH DAN SERAPANNYA OLEH TANAMAN PADI SAWAH DI SUB DAS SERAYU HILIR WILAYAH KECAMATAN MAOS KABUPATEN CILACAP
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| Abstrak (Bhs. Indonesia) | Penelitian ini bertujuan untuk mengetahui: i) agihan unsur hara K tanah di lahan sawah di Sub DAS Serayu Hilir Wilayah Kecamatan Maos, Kabupaten Cilacap, ii) hubungan korelasi antara ketersediaan unsur hara K tanah sawah dan serapan K dengan hasil tanaman padi sawah di Sub DAS Serayu Hilir Wilayah Kecamatan Maos, Kabupaten Cilacap, dan iii) rekomendasi pemupukan K di lahan sawah di Sub DAS Serayu Hilir Wilayah Kecamatan Maos, Kabupaten Cilacap. Penelitian dilaksanakan pada bulan November 2020 sampai Maret 2021 di Kecamatan Maos, Kabupaten Cilacap dan Laboratorium Tanah dan Sumberdaya Lahan, Fakultas Pertanian, Universitas Jenderal Soedirman. Penelitian dilakukan dengan metode survei pada tingkat semi detail dengan skala 1: 50.000. Penentuan titik sampel dilakukan berdasarkan peta satuan lahan homogen dan kawasan budidaya padi, dengan sistem transek yang dibuat tegak lurus aliran sungai Serayu. Variabel yang diamati meliputi DHL (daya hantar listrik) tanah, potensial redoks, K-tersedia tanah, serapan K dan hasil tanaman padi. Hasil penelitian menunjukkan bahwa status unsur hara K di lahan kecamatan Maos termasuk ke dalam harkat rendah. Hubungan K-tersedia tanah dengan hasil tanaman memiliki koefisien determinan dengan R2= 0,3627 dan memiliki nilai korelasi positif (r= 0,602), sedangkan serapan K oleh tanaman dengan hasil tanaman memiliki koefisien determinan sebesar R2= 0,0656 dan memiliki nilai korelasi positif (r= 0,256). Hubungan K-tersedia tanah dengan serapan K oleh tanaman memiliki koefisien determinan sebesar R2=0,332 dan memiliki nilai korelasi positif (r=0,576). Rekomendasi pemupukan K di kecamatan Maos berkisar antara 53,35-112,04 kg K2O/ha atau setara dengan 88,92-186,73 kg KCl/ha.
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| Abtrak (Bhs. Inggris) | This study aims to determine: i) the distribution of soil K nutrients in paddy fields in the Serayu Hilir sub-watershed, Maos sub-district, Cilacap district, ii) the correlation among the availability of nutrient K in lowland soils and K uptake with the yield of lowland rice in the sub-watershed Serayu Hilir, Maos Sub-district, Cilacap Regency, and iii) recommendations for K fertilization in paddy fields in the Serayu Hilir Sub-watershed, Maos District, Cilacap Regency. The research was carried out on from November 2020 to March 2021 in Maos District, Cilacap Regency and the Laboratory of Soil and Land Resources, Faculty of Agriculture, Jenderal Sudirman University. The research was conducted using a survey method at the semi-detailed level with a scale of 1: 50,000. Determination of the sample point is based on a map of homogeneous land units and rice cultivation areas, with a transect system made perpendicular to the flow of the Serayu river. The observed variables included soil conductivity, redox potential, K-available soil, K uptake and rice yield. The results showed that the status of K nutrients in the Maos sub-district was classified as low. The relationship between K-available soil and crop yields has a determinant coefficient with R2= 0.3627 and has a positive correlation value (r = 0.602), while K uptake by plants and crop yields has a determinant coefficient of R2= 0.0656 and has a value of positive correlation (r= 0.256). The relationship between K-available soil and K uptake by plants has a determinant coefficient of R2= 0.332 and has a positive correlation value (r = 0.576). K fertilizer recommendations in the sub Maos ranged from 53.35 to 112.04 kg K2O / ha, equivalent to 88.92 to 186.73 kg KCl / ha.
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| Kata kunci | Kata kunci: K-tersedia, serapan K, tanaman padi, rekomendasi pemupukan. |
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| Pembimbing 1 | Ir. Purwandaru Widyasunu, MSc.Agr. |
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| Pembimbing 2 | Prof.Ir. Totok Agung D.H.,M.P.Ph.D. |
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| Pembimbing 3 | |
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| Tahun | 2021 |
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| Jumlah Halaman | 15 |
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| Tgl. Entri | 2021-07-14 13:32:08.135295 |
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