Respons awal pemberian biostimulan Orgamin pada kelapa sawit (Elaeis guineensis Jacq.) di Kebun Marjandi PTPN IV Early response of Orgamin biostimulan application in oil palm (Elaeis guineensis Jacq.) at PTPN IV Marjandi plantation

Autor: Soekarno Mismana Putra, Happy Widiastuti, Djoko Santoso, A. H. Saragih Saragih, B. Marahimin Marahimin, M. A. Ghoni Ghoni, K. Panjaitan Panjaitan
Rok vydání: 2016
Předmět:
Zdroj: E-Journal Menara Perkebunan. 81
ISSN: 1858-3768
0125-9318
DOI: 10.22302/iribb.jur.mp.v81i1.51
Popis: Effort to increase the production of oil palm can be conducted through application of plant growth regulator (PGR). Orgamin biostimulan is a natural PGR formula that has been tested to improve the vegetative growths of corn and oil palm in the glass house. Assessment of Orgamin and Orgamin plus (Orgamin + micro nutrient) applications at commercial scale was carried out in Marjandi oil palm plantation of PTPN IV using randomized block design with three treatments, i.e. K = 100% recommended dose of inorganic fertilizer (control), O= Orgamin (1.5 kg/tree) + 50% dose of inorganic fertilizer, OP = Orgamin plus (1.5 kg/tree) without inorganic fertilizer. The parameters of observation at 2.5 months after the treatments were soil and leaf nutrient contents (N, P, K, Mg), percentage of female flower, mesocarp oil content, and harvested fresh fruit bunches (FFB). The observation showed that there was an increased in oil yield, weight of FFB and leaf nutrient content, while the percentage of female flower and nutrient content of soil were not significantly different compared to the control. Abstrak Upaya untuk meningkatkan produksi kelapa sawit dapat dilakukan antara lain melalui pemberian zat pengatur tumbuh (ZPT). Biostimulan Orgamin merupa- kan formula ZPT alami yang telah diuji di rumah kaca pada tanaman jagung dan bibit kelapa sawit. Uji coba aplikasi Orgamin dan Orgamin plus (Orgamin yang diperkaya hara mikro) pada skala lapang dilakukan di kebun kelapa sawit Marjandi PTPN IV dengan menggunakan Rancangan Acak Kelompok (RAK) untuk menguji tiga perlakuan, yaitu 1) K (kontrol) = 100% dosis anjuran pupuk kimia (APK = kontrol), 2) O = 50% dosis APK + Orgamin (1,5 kg/pohon), 3) OP = Orgamin plus (1,5 kg/pohon) tanpa pupuk kimia. Peubah yang diamati pada 2,5 bulan setelah perlakuan adalah kan- dungan hara tanah dan daun (N, P, K, Mg), persentase bunga betina, rendemen minyak mesokarp, dan produksi tandan buah segar (TBS). Hasil yang diperoleh me nunjukkan terdapat peningkatan rendemen minyak, bobot TBS dan kandungan hara daun, sedangkan persentase bunga betina dan kandungan hara tanah tidak menunjuk- kan perbedaan yang nyata antara perlakuan dan kontrol.
Databáze: OpenAIRE
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