Update Artikelilmiah: 11210

AHMAD KHASANUDIN

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk mengetahui: (1) pengaruh dosis kombinasi pupuk organik, anorganik dan hayati terhadap serapan P tanaman jagung pada tanah Ultisol Somagede, Banyumas, (2) mengetahui pengaruh saat tanam terhadap serapan P tanaman jagung pada tanah Ultisol Somagede, Banyumas, serta (3) pengaruh interaksi antara dosis pupuk dan saat tanam terhadap serapan P tanaman jagung pada tanah Ultisol Somagede, Banyumas. Penelitian ini dilaksanakan di tanah Ultisol milik petani Desa Tanggeran, Kecamatan Somagede, Kabupaten Banyumas dan di Laboratorium Ilmu Tanah Fakultas Pertanian UNSOED Purwokerto dan Balai Pengkajian Teknologi Pertanian Yogyakarta. Penelitian ini dilaksanakan pada bulan April sampai November 2014. Penelitian ini menggunakan Rancangan Acak Kelompok Lengkap (RAKL), dengan 2 faktor dan 3 kali ulangan. Sebagai faktor pertama ialah paket perlakuan pupuk (pupuk organik, anorganik dan hayati) yang terdiri dari lima taraf yaitu: 0% (D0), 50% (D1), 100%  (D2), 150% (D3), dan 200% (D4). Faktor kedua ialah perbedaan saat tanam yang terdiri atas tiga taraf yaitu: T1 = satu minggu setelah pemupukan, T2 = dua minggu setelah pemupukan dan T3 = tiga minggu setelah pemupukan. Hasil penelitian menunjukkan bahwa pengaruh dosis kombinasi pupuk organik, anorganik dan hayati berpengaruh sangat nyata terhadap peningkatan pH tanah, P-tersedia, P-total tanah, serapan P, berat kering akar, berat kering tongkol, berat biji pertanaman dan jumlah biji. Perbedaan saat tanam berpengaruh nyata terhadap seluruh variabel yang diamati, kecuali berat biji pertanaman dan pH tanah. Terdapat interaksi antara perbedaan saat tanam dengan dosis kombinasi pupuk lengkap terhadap P tersedia.

Abtrak (Bhs. Inggris)

The purpose of this research is: 1) effect dose of organic fertilizer, anorganic and biological against corn crop P uptake in Ultisol Somagede, Banyumas, 2) determine the effect on P uptake when planting maize in Ultisol Somagede, Banyumas, and (3) the effect of the interaction between the fertilizer and the different of planting time corn crop P uptake in Ultisol Somagede, Banyumas. This research conducted in the farmers’s Ultisol was located in Tanggeran Village, Somagede Distic, Banyumas and in the science of soil Laboratory at Faculty of Agriculture, UNSOED Purwokerto and the Institute for Agricultural Technology Yogyakarta. This study was conducted from April to November 2014. The design of the experiment applied is the factorial Randomized Complete Block Design (RCBD) which is 2 factor and repeated 3 times. The first factor tried is the fertilizer treatment (organic fertilizer, anorganic fertilizer, and biological fertilizer) consisted of five level there is: 0% (D0), 50 % (D1),100% (D2), 150% (D3), and 200% (D4). The second factor is the difference when planting season that consists of three standard that is: T1 = one week after fertilization , T2 = two weeks after fertilization and T3 = three weeks after fertilization. The results showed that the effect of dose combination of organic fertilizers, anorganic and biofertilizer very significant effect on the increase in soil pH, available P, P-total ground, P-uptake, root dry weight, dry weight cob, planting seed weight and seed number. The difference in the time of planting significantly affected all variables were observed, except for heavy seed crop and soil pH. There is interaction between the different time of planting with a complete fertilizer dose combination of the P available.
Keywords: phosphorus uptake, when transplanting and Ultisol

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